Category: Urban Transit

New York Finds Massive Savings in Transit Construction

MTA Chairman Tom Prendergast announced that an internal review of MTA Capital Construction reveals that there are large wastes in the capital budget that could be eliminated with relatively simple steps. City comptroller Scott Stringer noted that Second Avenue Subway’s first phase, a two-mile stub, costs nearly $5 billion, whereas comparable lines in Paris, London, Tokyo, and other rich, global cities are a fraction of that amount. “Few lines cost more than half a billion dollars per mile,” his office added.

Prendergast’s office directed questions to MTA Capital Construction President Michael Horodniceanu. Horodniceanu outlined a list of items raising New York’s subway construction costs, including labor rules, legal issues, lack of training in new technologies, and insufficient public oversight of contractors. He added that there is little hope of seeing large reductions in the costs of ongoing projects, which are too far advanced, with most of the money already spent, but future subway construction could be done for much cheaper. He did not give a concrete estimate, but a senior official at MTA Capital Construction believed that with the requisite reforms, future subway lines would cost about half a billion dollars per mile in Manhattan and a quarter billion dollars in the Outer Borough.

When asked about the possibility of building Amtrak’s Gateway Project at lower cost, the source qualified those estimates, explaining that Gateway can probably be done for $3 billion, closer to a billion dollars per mile, as much of the project involves underwater tunneling. Officials from Amtrak did not comment on the record by the time this story went to press; however, a senior Amtrak manager speaking on condition of anonymity said, “we don’t really believe this is possible – there are lots of low estimates, and those always lead to budget overruns,” and said that the cost figures from the rest of the world are “irrelevant to America and American labor costs.”

Labor reactions to the announcement were mixed. James Ryan, the president of the Sandhogs Local 147 union, expressed skepticism that costs could be brought down without cutting wages or unionized jobs, and warned of a “race to the bottom” and a “low-wage Wal-Mart economy.” However, he added that he would accept changes as long as there was a guarantee of no job losses, wage cuts, or work rule reforms that would reduce union autonomy. TWU Local 100 President John Samuelsen, whose union represents subway workers rather than construction workers, proposed that the city and the state use the reduced costs to expand subway construction, specifically mentioning future phases of Second Avenue Subway. Currently only Phase 1 is funded, serving the Upper East Side.

Reactions within the state legislature were more positive. The greatest supporter is Assembly Speaker Sheldon Silver (D-Manhattan), whose Lower East Side district is slated to be served by the fourth and last phase of Second Avenue Subway. Silver noted that he was in support of the project even when it was just Phase 1, and said that he would work with the State Senate to pass all the legal reforms requested by Prendergast and Horodniceanu. In the State Senate, co-temporary presidents Dean Skelos (R-Long Island) and Jeffrey Klein (Ind. D-Bronx) had a cooler response. They both praised the revelations and said that they would consider passing the reforms requested, but did not mention any timeline for doing so. Several state legislators, speaking on condition of anonymity, expressed sentiments that the MTA is keeping two sets of books, and if the MTA just admitted to being able to save more money, then its budget requests for operations are also likely suspect. Skelos himself was cool to the proposals for a legislative audit of the MTA, but added, “I understand why people are upset and want to take a closer look.”

In contrast, within City Hall, reactions were overwhelmingly positive. The office of Mayor Bill de Blasio praised Horodniceanu and sent a press release calling MTA Capital Construction’s announcement “a courageous admitting of past mistakes, and an ambitious look forward.” De Blasio himself added that “Now is the time to see where we can build new lines that we thought were unaffordable,” and expressed confidence that all necessary changes can be achieved without running afoul of labor demands.

It is unclear whether the city or the MTA will propose any subway extensions, other than the completion of Second Avenue Subway. In 2008, the MTA’s then-chairman, Elliot Sander, proposed a 22-mile circumferential line running on lightly-used freight rights-of-way, connecting the Bronx, Queens, and Brooklyn without going through Manhattan. Regional Plan Association President Robert Yaro noted that his organization initially proposed this line in 1996 and proposed that the MTA build this line as well as express links to all three airports. He added that this line, which he calls Triboro, requires only about a mile of tunnel and is therefore much cheaper than fully underground lines. “The MTA has found a way to make everything cheaper, both subways and construction on existing infrastructure, so Triboro will be especially cheap now,” he said.

The community groups who could be reached by the article’s deadline were split. Transit activists within Harlem proposed that Second Avenue Subway be modified to add a fifth phase, going crosstown under 125th Street. The members of Harlem’s three community boards agreed that it would be useful, but most of them expressed concerns that it would lead to gentrification and displacement of existing residents, and said they would support the line if the city made an effort to build or preserve affordable housing. MTA planners who spoke on condition of anonymity proposed to extend the 2 and 5 down Nostrand Avenue in Brooklyn and the 4 down Utica Avenue, as per proposals from the 1970s. The response of the community boards in southeastern Brooklyn was more negative, saying that it would change the character of the neighborhoods relatively. One community board member warned that this would lead to “Manhattanization of our neighborhood.”

No member of the New Jersey state government responded to repeated requests for quotes by the article’s deadline.

Transit Observations from Philadelphia

I was in Philadelphia last summer for about five days. I have few observations as a pedestrian: I stayed in West Philadelphia, in the gentrifying zone radiating out of University City, and traveled to Center City, and both neighborhoods seemed intimately familiar to me as a (former) New Yorker. The street widths and setbacks looked very much like those of New York; West Philadelphia could easily be an area of Brooklyn. The difference to me was in the public transit rather than the pedestrian experience.

In New York, the subway is for everyone. The same is true of Singapore and Vancouver. In Philadelphia, it is not the case. The city is about 40% white and 40% black. On the trains I took, the Market Street subway and the Subway-Surface Trolleys, nearly everyone was black. A friend who lived in Philadelphia for ten years has observed the same on the buses, and adds that white people on buses tend to be college students.

But there’s more to the story. I think it’s a commonplace that in American cities other than New York, blacks ride public transit more than whites. What I think is more important is that whites tend to ride transit at rush hour. When I rode the trains in Philadelphia at rush hour, there was still a clear black majority on the streetcar or the subway car, but there were a fair number of whites. In the off-peak, I was at times the only white person on a streetcar that was filled to its seated capacity. The aforementioned friend says she thinks she saw the same, but as she rarely rode at rush hour, she is not sure.

It is not hard to come up with explanations for the difference. In Philadelphia, as in the typical Rust Belt city, the white population is quite suburbanized, much more so than the black population. It is also substantially richer. Both contribute to car ownership, and to driving in whenever traffic allows; since traffic is worst at rush hour, that’s when we see the most white people on public transit. The people who ride the trains and the buses outside rush hour tend to be urban residents who do not own a car, and in a city with the income distribution and racial dynamics of Philadelphia, they are predominantly black.

This injects a racial element into a lot of transit planning, especially for commuter rail. North American commuter rail is designed exclusively for suburban residents, who in Philadelphia and similar cities are usually white and at least middle-class. This is why it gets away with such poor off-peak service: hourly on most SEPTA Regional Rail lines, hourly or even every two hours on the MBTA, hourly on most branches of the New York commuter rail network. Although New York itself doesn’t have the typical Rust Belt city demographics, its suburbs have typical Rust Belt suburb demographics, so the situation is the same. The same is true of Boston, when one remembers that a huge fraction of its urban white population is in Cambridge and Somerville. Philadelphia is only where this racial division is the most obvious even on the subway.

Everything about North American commuter rail screams “you’re better than the hoi polloi who ride the subway”: the seating arrangement maximizing seating rather than standing space, the park-and-rides, the fares, the lack of fare integration with local transit, the schedules. Since peak-only suburban transit serves precisely the niche that the traditional white suburban middle class is comfortable riding transit in, it is necessarily segregated. Its riders even fight to keep it that way: witness for example the opposition in Stamford to developing the Metro-North station and moving the parking 400 meters away. This article complaining about parking lot waits is typical of the species; these complaints persist despite very high spending on commuter rail parking lots, for example in Hicksville.

The same transit agencies that fudge or make up numbers to avoid serving minority neighborhoods also ignore the possibility of improving off-peak service. Although off-peak service is cheaper to provide than peak service – it requires no new vehicles or infrastructure and fewer split-shift crews – the plans for service expansion typically focus on more peak capacity, despite often high crowding levels on off-peak trains. This is worst on commuter rail, but also affects subway and bus systems. In New York, the MTA’s crowding guidelines call for setting off-peak frequency such that the average train on each line will have 25% more riders than seats at the most crowded point of its journey. As anyone who’s ridden trains in Manhattan in the evening knows, trains are quite often much more crowded than this average. The MTA needs to keep its losses to a reasonable minimum, and on the core lines the off-peak frequency is not bad; but why keep claiming that trains only have 25% more riders than cars? The MTA is by comparison more honest about its capacity problems on the Lexington express trains, for example in the Second Avenue Subway environmental impact statement.

Many of the problems of American transit systems are directly traceable to the fact that the managers don’t often ride the trains, and their peer group is not the same as the average transit user. This is why we see little concern for off-peak service, and practically none with off-peak service on the whitest and more suburban form of transit, commuter rail. None of these managers of course intends to be racist or classist, but they unwittingly are.

The Difference Between Bus and Subway Alignments

Reading design guidelines for bus routes reminds me of how different surface transit is from rapid transit. Buses need to follow straight, wide, two-way roads. Subway trains do not: those roads make construction easier, but it’s normal for train lines to detour and turn, even in rigidly gridded cities like New York. The upshot is that sometimes the optimal route for a bus is different from that of a subway, and this limits the usefulness of preexisting bus routes for subway planning.

For a relatively simple example of this, consider the plans for a subway under Wilshire Boulevard in Los Angeles. The buses follow Wilshire all the way from Downtown to Santa Monica. The trains were never intended to: there’s a short stretch where Wilshire isn’t as important while somewhat off the street lies Century City, and all alignments studied for the Wilshire subway have involved some deviation. The chosen alignment is the one that deviates more than the other, to serve Century City more centrally.

This is relevant specifically to the example of Tel Aviv. When I criticized the Tel Aviv subway route choice for being politically motivated to avoid certain neighborhoods, Alan of Tel Aviv Bus Mappa said,

To minimise cost, the planners looked at what works today (the existing high-demand bus routes) and decided that connecting Petah Tikva and Bat Yam to Tel Aviv was the highest demand corridor. They also looked at what was wide (boulevards and arterials), as their aim was to maximise segregated on-street running. This is also the reason that the plan makes use of the ‘Turkish line’ alignment connecting Jaffa and Allenby rather than the more direct, but narrow, Derech Yafo and Eilat Street.

Central Bus Station would have been a huge diversion for the route and is not a particularly in-demand destination. However, the planned Green line will serve that location.

The problem with this line of thought is that subways are not buses. Subways can use the more direct but narrower alignments if they need to: it may be somewhat more expensive to construct, but there’s no disutility to passengers. A bus running on a narrow street is slowed down, especially if the street is twisty. A subway that can go under private property is not.

Even in New York there are some twists – for examples, the route of the L through Brooklyn, and the route of the 2/3 from the Upper West Side to Harlem. But those twists are not critical, and the city doesn’t really need them. The Wilshire deviation in Los Angeles is also in this category.

It’s ungridded cities where the ability of trains to cut under the street network becomes critical to providing service to major destinations, which may not be anywhere near the wide streets. A look at the inner network of the London Underground will confirm that the lines bear little relationship to the street network, which was built incrementally over the centuries and would not be good at serving the major destinations in the desired directions. In Paris the older lines were built subsurface and do follow streets (which at any case are more rationalized than in London due to heavyhanded central planning), but the newer ones were built deeper and do not.

In Tel Aviv, the problem is that many of the neighborhoods that need public transportation service the most do not have wide streets for buses, or have wide streets configured in the wrong directions. The oldest parts of the city, the Old City of Jaffa and Ajami, have very narrow streets since they predate modern boulevard design by a few centuries. The next oldest – the Jewish neighborhoods of Jaffa, South Tel Aviv, the western parts of Central Tel Aviv, and the Old North – do have wide streets, but often pointing in the wrong direction, for examples nothing serves the Port or the Basel Heights compound, and the east-west streets going through the Old North are very narrow. They have no reason to form a coherent rapid transit network, since they were built as interurban streets or as neighborhood main streets, not as subway alignments. They barely even form a coherent bus network, but the hacks made over the decades to create bus trunk lines are different from the optimal route a subway would follow.

In fact, the recently-reelected Huldai administration has plans to upzone around the central parts of the route to build a new CBD. The area in question, around Begin Road, is unwalkable and almost unfixable to be made pedestrian-friendly, the road is so wide and fast. This is not service to an existing destination that follows a linear corridor as in New York and other strongly gridded cities.

In a city like Tel Aviv – or any other city without a strong grid that influences development – subway planning should start from a list of major destinations and dense residential neighborhoods and their locations on a map. The subway routes should form somewhat straight lines connecting them, with the first line chosen in a way that connects to the most and the most important ones. It’s fine to have somewhat kinked routes – nobody likes riding a C-shaped route, but it’s okay to have small deviations such as the ones proposed for Wilshire or even larger ones such as the one Shanghai’s Line 1 takes to reach People’s Square. The junctions should be the most important destinations, or the ones with the most potential for CBD formation; in Tel Aviv those are generally to the west of the planned CBD, because of the potential for waterfront upzoning and the preexisting density in the neighborhoods south of the Yarkon and west of the Ayalon Freeway.

Buses are of course not planned like this. A city that wants a vigorous bus network needs to do what Los Angeles and Vancouver have done: put the buses on a grid as much as possible, and have them go straight along major roads, with as few deviations as possible. Vancouver’s north-south buses deviate a little bit to serve Downtown, and even those deviations are sometimes questionable since people transfer from the buses to SkyTrain before the buses reach Downtown. The grid allows for an efficient network of transfers, with the transfer penalty reduced by high frequency on the trunk lines. It’s nothing like subway lines, which form a tight bus-like mesh in about one city in the world (Mexico City) and everywhere else have a mesh-like core surrounded by what is an essentially hub-and-spoke system.

Even when the busiest bus routes do indicate something about subway demand, there are exceptions. In New York, the busiest bus lines today are the M15, on First and Second Avenues, and the B46, on Utica Avenue: they are almost even in ridership and have traded places for first place citywide recently. But nobody expects a Utica subway to get the ridership of Second Avenue Subway, even people like myself who believe such a subway is underrated and should be considered in medium-term transit planning. The third busiest route in New York is the Bx12, on Fordham, and I do not know a single transit activist who believes it should be railstituted, even ones who believe other routes with somewhat lower ridership should be railstituted (such as Nostrand, whose bus, the B44, ranks fifth). The issue here is that First and Second are in Manhattan, where bus speeds are so low that ridership is suppressed, as people walk longer distances to the parallel subway or don’t take the trip; if both Second and Utica get subways, the lower amount of congestion in outer Brooklyn is irrelevant and the trains will travel at the same speed, whereas today there are factors working against Second that make the rail bias there higher than on Utica.

Something similar is the case in Tel Aviv. The widest boulevards have the largest concentrations of bus trunk lines, but that’s because they are the only streets on which buses are even remotely feasible as modes of transportation. In Jaffa, Jerusalem Boulevard is wide enough for fast surface transit but Yefet Street is not. Based on Jerusalem’s width, the planners chose to keep trains at-grade on Jerusalem, which they could not do on Yefet. But if trains were underground, Jerusalem’s current advantage would evaporate, leaving Yefet with the advantages of proximity to the Old City and the Flea Market and of higher density.

It is wrong to plan buses as if they were subways or early-20th century streetcars, where frequent twists were not a problem since there were few cars on the road, and where the dominance of the traditional downtown favored a hub-and-spoke network. Recent bus successes in North America have involved discarding those ideas and planning buses based on modern travel needs and modern traffic levels. By the same token, it is wrong to plan subways as if they were buses when they are capable of following alignments that buses cannot.

More on Vancouver’s Obsession With Filling Buses (Hoisted from Comments)

Via Human Transit, I learn that Translink has a bus service performance summary with an infographic on PDF-page 16 contrasting high- and low-performing routes. As usual, Translink claims that the high-performing routes have strong anchors at their ends as one of the reasons for their success. Unfortunately, the claim is not completely correct, and on top of that the definition of “high-performing” is stretched to make anchored routes look better. In particular, this implicates Vancouver’s strategy of upzoning the most intensely at its southern rim while ignoring its center.

To paraphrase my second comment on Human Transit, the summary rates routes on three metrics: boardings per hour, capacity utilization, and cost per boarding; a high-performing route is one that is in the metro area’s top 25 on all three, and a low-performing one is one that is in the bottom 25 on all three. However, only the first and the third are actually useful for the passenger. The second is a measure of pain – it’s the product of turnover with crowding, and although it can be raised by raising turnover, it can also be raised by making the bus more crowded.

An updated list of Vancouver buses and their productivity measures is available here. Measured by cost per rider and boardings per hour, the unanchored 8 is more productive than the 49, which has anchors but nothing in between. But the 8 ranks 29th in capacity utilization, so it’s penalized. The 5 and the 6, which are very short routes serving the West End, are also penalized solely because of their low crowding levels and their short length, which makes turnover more difficult. The 8 has high turnover (like the 3 and 20, which did make the infographic), so it achieves more passenger boardings per hour but fewer passenger-km despite its weak outer-end anchor, and the 5 and 6 are so short that even passengers riding all the way through provide many boardings per hour relative to capacity utilization.

Translink unfortunately does not break down capacity utilization into its two components, and only cites the crowding level at the most crowded point of the average trip. But we can still construct a table of some routes with their performance on the three metrics as well as their crowding level:

Route Boardings/hr Capacity use Peak Crowding Cost/boarding
3 113 110% 49% $0.89
5 105 67% 53% $0.95
6 98 68% 48% $1.02
8 102 98% 41% $0.98
9 103 160% 64% $0.97
20 113 124% 50% $0.89
25 81 187% 74% $1.23
41 105 180% 78% $0.95
49 96 169% 82% $1.04
99 176 167% 86% $0.57

The 3, 9, 20, 41, 49, and 99 are in the infographic on the list of most productive routes; the 25 narrowly misses on cost per passenger and boardings per hour but is second systemwide in capacity utilization, and the 5, 6, and 8 miss only on capacity utilization. The 25 and 49 have strong anchors at their outer ends, a single strong central anchor at the Canada Line, and nothing else; On the metrics relevant to the passenger who’s expected to ride the bus and fund it by paying a fare, they are somewhat lower-performing than the short 5 and 6 and the short-trip-encouraging 3, 8, and 20, but have far more crowding. The 9 and 41, both in the infographic, are about on a par with the 3, 5, 6, 8, and 20, and have more turnover due to additional destinations on Broadway and 9th that don’t exist on King Edward and 49th, but are still much more crowded than the unanchored routes. The 99 beats all others in performance, but the cost in terms of crowding is even higher.

The purpose of anchoring is explicitly to keep buses full all the way; the 25 and 49 are great at that, since people ride them longer distances, not having much to go to between their major destinations. However, it’s not a measure of passenger satisfaction or of transit agency finances, but of passenger-km. The surreptitious focus on passenger-km is dubious as a performance metric for urban transit, since transit-using city dwellers usually prefer shorter commutes and do most non-work trips on foot.

And if it’s dubious as a transit proposition, then as an urbanist proposition it’s destructive. As discussed in my previous post on the subject, Vancouver is upzoning Marine Drive (slightly) more intensely than the area south of Broadway and near the stations on the Canada Line between Broadway and Marine Drive – see PDF-pp. 26-27 of the draft plan. Despite the hysteria about urban planners using social engineering to make people live close to city center and take transit instead of driving, here we have a city with an otherwise well-deserved reputation for greenness using social engineering to make people live farther out.

This focus on anchors is making Vancouver build itself to be on a regional scale like how the 25 and 49 look on the local scale. The famous high-rise Vancouverism is really about looking like the 5 and 6 – i.e. upzoning near Downtown so that people will walk or take short trips – but future development is not intended to occur near Downtown but rather in strategically chosen secondary CBDs farther away. And what is really needed is continuous corridor development, as is practiced on the corridors hosting the 3, the 8, and the 20.

Tel Aviv Needs a Subway, Done Right

After decades of false starts, Tel Aviv is finally building a subway-surface line. The political opinions of activists and urban planners in Israel are divided between supporters, who believe the line is long overdue, and opponents, who instead believe buses remain the solution and also oppose the Jerusalem light rail. I on the contrary think that on the one hand Tel Aviv needs a subway, but on the other hand the current plan has deep flaws, both political and technical, and is learning the wrong lessons from recent first-world greenfield subways.

In some ways, the Tel Aviv subway resembles New York’s Second Avenue Subway. It passes through neighborhoods that are very dense – the line under construction connects some of the densest cities in Israel, albeit poorly. Nobody believes it will be built because of all the false starts. Real incompetence in construction leading to cost overruns has led to speculation about much greater cost overruns.

For nearly a hundred years, the conurbation around Tel Aviv and Jaffa has been the largest metro area in what is now Israel; it is also the largest first-world metro area outside the US that has no urban rail. There were preliminary plans for a Tel Aviv subway in the 1930s, followed by repeated plans since independence, all of which were shelved. A proposal from just after independence for developing coastal Israel around rail and rapid transit trunks was rejected by Prime Minister David Ben Gurion because it conflicted with the political goal of Jewish population dispersal; to further its political goals, the state concentrated on building roads instead. In the late 1950s there was a new integrated national rail plan that was not implemented. Haifa got a six-station, one-line funicular, but Tel Aviv and Jerusalem remained bus-only. In the 1960s a skyscraper in Central Tel Aviv was built with a subway station, but there were no tunnels built; a subsequent 1971 plan was abandoned in 1973 due to the Yom Kippur War. The current subway plan dates to the 1990s, and has suffered from repeated delays, and construction only began recently, with opening expected for 2016.

Unlike in the North American debate, in Israel the left is pro-BRT and anti-rail, due to a long tradition of mistrust in mainstream (center-right to right-wing) politics. The same is true of urban planners who follow the Jacobsian tradition, such as Yoav Lerner Lerman (Heb.). The article I translated two years ago about Jerusalem’s light rail is in that tradition: it attacks genuine problems with cost overruns and a politicized route choice process, but then concludes that BRT is the solution because it’s been implemented in Curitiba and Bogota successfully. The result is that people whose ideas about trade, energy, health care, education, and housing are well to the left of what is considered acceptable in the US end up channeling the Reason Foundation on bus versus rail issues.

In reality, Tel Aviv’s urban form is quite dense. The city itself has 8,000 people per square kilometer, much lower than Paris and Barcelona, but higher than most other European central cities (say, every single German city). Like Los Angeles, its municipal borders do not conform to the informal borders of the inner-urban area, since it contains lower-density modernist neighborhoods north of the Yarkon, while dense Ramat Gan, Giv’atayim, Bnei Brak, and Bat Yam are separate municipalities. The inner ring of suburbs, including the above-named four, has 7,400 people per square kilometer; excluding the more affluent but emptier northern suburbs, this approaches 10,000/km^2.

However, the urban form is quite old, in the sense that the density is fairly constant, without the concentrations of density near nodes that typify modern transit cities. Tel Aviv’s residential high-rise construction is not very dense because it still follows the modernist paradigm of a tower in a park, leading to low lot coverage and a density that’s not much higher than that of the old four-story apartment blocks. The Old North achieves about 15,000 people per square kilometer with a floor area ratio of 2: the setbacks are such that only about half of each lot is buildable, and there are four floors per building. The Akirov Towers complex averages about 2.5.

Although this density pattern favors surface transit rather than rapid transit, Tel Aviv doesn’t have the street network for efficient surface transit. Paris, a poster child for efficient recent construction of light rail (see costs and ridership estimates on The Transport Politic), is a city of wide boulevards. Central Tel Aviv has about two such streets – Ibn Gabirol and Rothschild – and one auto-oriented arterial, Namir Road, which the subway line under construction will go under. The street network is too haphazard to leverage those two for surface BRT or light rail, and the major destinations of the central areas are often on narrower streets, for example Dizengoff. On top of that, light rail speeds in Paris are lower than 20 km/h, whereas newly built subways are much faster, approaching 40 km/h in Vancouver and Copenhagen. Outside Central Tel Aviv, the roads become wider, but not nearly as wide as those used for BRT in Bogota, and there is nothing for surface transit on those streets to connect to on the surface. A surface implementation of Route 66, following Jabotinsky Street (the eastern leg of the subway line under construction) in Ramat Gan, Bnei Brak, and Petah Tikva, wouldn’t be very fast on the surface to begin with, but would come to a crawl once crossing the freeway into Tel Aviv.

Tel Aviv also has two more important reasons to imitate Vancouver and Copenhagen, besides speed: religious politics, and economic and demographic comparability. Public transportation in Israel operates six days a week, with few exceptions, to avoid running on the Sabbath. A driverless train, built to be quiet even on elevated sections, with no turnstiles and free fares on the Sabbath, could circumvent religious opposition to seven-days-a-week operation.

Even without the religious question, Copenhagen and especially Vancouver are good models for Tel Aviv to follow, more so than middle-income Curitiba or Bogota. Israel is a high-construction cost country, but Canada is not very cheap, and Vancouver has cut construction costs by making elevated trains more palatable and reducing station lengths. Greater Tel Aviv has 2.5-3.5 million people depending on who you ask, not much higher than the range for Copenhagen and Vancouver. Tel Aviv is about as dense as Copenhagen and Vancouver, though Vancouver’s density is spikier. Tel Aviv expects fast population growth, like Vancouver, though in Tel Aviv’s case it’s a matter of high birth rates whereas in Vancouver it’s only immigration.

One way in which Vancouver is not a good model is the role of regional rail. Israel has no equivalent of Transport Canada or FRA regulations. It even connected Tel Aviv’s northern and southern rail networks and through-routes nearly all commuter and intercity trains. However, the network has real limitations, coming from its poor urban station locations, often in highway medians; the through-running project was completed simultaneously with the construction of the freeway. For example, the Tel Aviv University station is located far downhill from the actual university. As a result, even when there is development near the train stations, it is usually not walkable. This compels new rail service with stations in more central locations as well as east-west service, complementing the north-south mainline.

However, for service to the less dense suburbs, the construction of new lines, and electrification of the entire national network (so far only the Haifa commuter network is scheduled for electrification), should provide the backbone. There is no integrated planning between regional rail and shorter-distance urban rail, the first failing of the current plan.

More broadly, the plan fails not just because of the wrong mode choice – subway-surface rather than driverless metro with a regional rail complement – but also because of how it treats urban geography. The proposed network – on which the red line is under construction and the green line is intended to be the second built – is too sparse in the center, and ignores the older urban centers. The phasing ignores preexisting transportation centers, and often the choice of who to serve and how to serve them is political.

The worst political decision concerns Jaffa, the old core of the metro area. (Tel Aviv was founded as a nominally independent city, but really as a Jewish suburb of Jaffa.) The most activity is in the Old City and the Flea Market, going down along Yefet Street to Ajami, since 1948 the only majority-Arabic speaking neighborhood in the municipality, and the only neighborhood that is completely unplanned. The streets are narrow, favoring a subway, and the residents are poor and have low car ownership rates. Instead, the route through Jaffa is on the surface and follows Jerusalem Boulevard, a less busy road built by the city’s then-mayor out of envy of then-separate Tel Aviv’s Rothschild Boulevard. This serves the more gentrified Jewish parts. Ajami is gentrifying – it’s close to Central Tel Aviv, is right next to the coast, and has stunning architecture – but is still majority-Arab.

The other neighborhood that due to ethnic differences is viewed separately from Tel Aviv, Hatikva, is also underserved. In this case, the residents are Jewish, but are predominantly Mizrahi and traditional-to-religious, with high poverty levels. The plan does serve Hatikva, but much later than it should given the neighborhood’s density, intensity of low-end commercial activity, and proximity to Central Tel Aviv. A northwest-southeast line, following Dizengoff and then serving Central Bus Station (a larger transportation center still than any mainline rail station) and Hatikva before continuing east into the inner suburbs, should be a high priority, but isn’t. The Central Bus Station area is also a concentration of refugees, another low-income, low-car ownership population, though since this concentration is more recent than the plans for the subway, the lack of priority service to the bus station is not a result of racism.

It’s not only about class reasons, or racial ones: Tel Aviv had to fight to get the Ministry of Transportation to agree to build the second line underground under Ibn Gabirol, and that’s to an upper middle-class Ashkenazi neighborhoods. The common thread within the city proper is a preference for new modernist luxury towers over serving existing walkable density, even when that density is hardly lower than what the towers are providing. (The towers can be built more densely, with less open space; by the same token, the low-rise buildings could be upzoned from one half the lot and four story to three-quarters and six stories.)

Another example of bad politics is the way military bases are served. The very center of Tel Aviv is home to the Ministry of Defense and the main military headquarters, the Kirya. The inner urban area is ringed with much larger military bases, including Tsrifin to the south, Glilot to the north, and the Bakum to the east. But the officer corps is concentrated in the Kirya, while Tsrifin is a more general base, Bakum is dedicated to new draftees so that they can be told what unit they’re to be sent to, and Glilot is somewhat higher-end than Tsrifin due to its role in military intelligence but still lacks the Kirya’s concentration of high-ranking officers. Since draftees almost never own cars and often ride buses for hours, the three outlying bases are all natural outer anchors for lines, and Glilot and Tsrifin both lie on easy spurs from the mainline rail network. Despite this, there are no plans for regular service, while the Kirya is part of the subway line under construction and is the intersection point with the second line to be built.

Even on pure geography, the plan makes critical mistakes. The eastern leg of the line under construction is much better than its southern leg: it goes straight from the train station through Ramat Gan and Bnei Brak to a secondary anchor in Petah Tikva. And yet, the station spacing in Bnei Brak, the densest city in Israel, is the widest, even though higher density allows shorter station spacing. In contrast, the surface segment in less dense Petah Tikva is intended to have denser stop spacing. Moreover, despite the advantages subway-surface operation has in terms of branching, the branching is meant to be really a short-turn, with half of all trains going straight to the depot still in the underground section and half continuing to Petah Tikva. Central Petah Tikva is well to the south of the line, which is intended to terminate at Petah Tikva’s peripherally located central bus station, but there is no branch serving that center, despite high intended frequencies (3 minutes on the surface, 1.5 minutes underground).

I believe that in addition to an electrified mainline rail trunk, Tel Aviv needs a driverless subway network that looks roughly like an E: one or two north-south lines (west of the freeway if one, one on each side if two), three east-west lines intersecting the mainline rail at the three main Tel Aviv stations. The east-west lines should be anchored at the eastern ends at Petah Tikva, Bar Ilan University, and the Bakum or Kiryat Ono; the north-south lines should go about as far north and south as required to serve the center, letting mainline rail take care of destinations roughly from Glilot or Herzliya north and from Tsrifin south. Such a network would not serve political goals of making Tel Aviv a luxury city; it would just serve the transportation goals of the urban area’s residents.

Quick Note: Why Quinn is Unfit to be Mayor

The Triboro RX plan calls for using preexisting freight rail rights-of-way with minimal freight traffic to build a circumferential subway line through the Bronx, Queens, and Brooklyn. It was mentioned as a possible project by then-MTA head Lee Sander and more recently by Scott Stringer and on The Atlantic Cities by Eric Jaffe. Despite not having nearly as much ridership potential as Second Avenue Subway or a future Utica subway, the presumed low cost of reactivating the right-of-way makes it a promising project.

According to Capital New York, leading mayoral contender Christine Quinn has just made up a price tag of $25 billion for Triboro, while claiming that paving portions of the right-of-way for buses will cost only $25 million. This is on the heels of city council member Brad Lander’s proposal for more investment in bus service. The difference is that Lander proposed using buses for what buses do well, that is service along city streets, and his plan includes bus lanes on major street and what appears to be systemwide off-board fare collection. In contrast, Quinn is just channeling the “buses are always cheaper than rail” mantra and proposing to expand bus service at the expense of a future subway line.

There is no support offered for either of the two cost figures Quinn is using, and plenty of contradictory evidence. Paving over rail lines for bus service is expensive; a recent example from Hartford and a proposal from Staten Island both point to about $40 million per km in the US. The map in the Capital New York article suggests significant detours away from the right-of-way, including on-street turns making the bus as slow as the existing circumferential B35 route, but also several kilometers on the railroad in Queens. Conversely, reusing rail lines for rail service is not nearly as expensive as building a subway. The MTA’s own biased study says a combined on-street and existing-right-of-way North Shore service would cost 65% more if it were light rail than if it were a busway; since the Triboro right-of-way is intact, the cost of service is in the light rail range, rather than the $25 billion for 35 km Quinn says.

But the reason Quinn is unfit for office rather than just wrong is the trust factor coming from this. She isn’t just sandbagging a project she thinks is too hard; the MTA is doing that on its own already. She appears to be brazenly making up outlandish numbers in support of a mantra about bus and rail construction costs. Nor has anyone else proposed a Triboro busway – she made the logical leap herself, despite not having any background in transit advocacy. Politicians who want to succeed need to know which advocates’ ideas to channel, and Quinn is failing at that on the transit front. If I can’t trust anything she says about transit, how can I trust anything she says about the effectiveness of stop-and-frisk, or about housing affordability, or about the consequences of labor regulations?

Update: Stephen Smith asked Quinn’s spokesperson, who cited a $21 billion figure for a far larger RPA plan including Second Avenue Subway and commuter rail through-running with new lines through Manhattan. I am not holding my breath for a retraction of the bus paving plan from the Quinn campaign.

Update 2: Quinn admitted the mistake on the rail plan, and revised the estimate of the cost down to $1 billion, but sticks to the bus plan and its $25 million estimate.

Quick Note: More on Urban Absolutism

In previous posts, I brought up the theory that American cities are run in a feudal fashion, despite the nominally democratic system, and that the failings of feudalism are leading proponents of livable streets and public transit to demand elected absolute monarchs instead. The recent 125th Street bus debacle, and the online livable streets community’s response to it, represent another example of this trend.

To recap: New York City’s Department of Transportation proposed a bundle of bus upgrades along 125th Street: dedicated bus lanes on most of the street for the use of all four bus routes running along 125th, and Select Bus Service on the M60, which connects Morningside Heights with Astoria and LaGuardia. The M60 is by a small margin the top route for boardings along 125th (not necessarily for boardings elsewhere for trips ending on 125th), but it’s third in overall ridership among the four routes. Because of its Morningside Heights bend at the west end and its LaGuardia service it’s perceived as a whiter route than the other three routes: the Bx15, connecting to Third Avenue in the Bronx; the M100, connecting to Washington Heights and Inwood; and the M101, connecting to Washington Heights at one end and going along Third and Lexington at the other. Harlem politicians were livid that DOT were only giving SBS upgrades to the whiter route. State Senator Bill Perkins opposed the plan’s ban on double parking and got the bus lanes truncated from Central and West Harlem to just Central Harlem; he and City Councillor Robert Jackson continued to oppose the plan, Jackson doing so explicitly on the grounds of privileging the M60, and DOT just dropped it.

It is not my intention here to rehash my argument for why Jackson was right and DOT should have proposed SBS upgrades for all four routes, or if it had to pick one then the M101. I have said this on Streetsblog and Second Avenue Sagas in comments. Rather, I bring this up because while many commenters said “we lost, let’s try again” or “we lost, let’s defeat Perkins and Jackson for opposing our interests,” other responded with fantasies of absolute power: fantasies of the city cutting bus routes to West Harlem to punish Jackson and Perkins, fantasies of the city making the Harlem communities beg for any further livable streets improvements (as already happens with bike lanes in East Harlem), fantasies of a Robert Moses for livable streets, fantasies of Bloomberg buying election campaigns to defeat all livable streets opponents.

An absolute ruler is not going to do anything positive. He doesn’t have to – either his rule is secure and he doesn’t need to care, or it’s not and he needs to spend his effort shoring it up with patronage and attacks on opponents. A city government strong enough to do things over the objections of black politicians who are concerned with racial inequality, or over those of pro-car NIMBYs, will also be strong enough to do things over the objections of the livable streets community. Robert Moses’s problem wasn’t just that he was pro-car; it’s that he was authoritarian and didn’t need to care too much about what people thought, so that his own biases for segregation could become city policy.

Are Express Trains Worth It?

So, you have your urban rail line. It’s mostly above ground, so constructing new express overtakes is feasible. It has decent frequency, and carries trains to destinations at a variety of distances from city center. But it’s not an overcrowded subway line that brushes up against line capacity, requiring all trains to run at the same speed. Do you run express trains?

I’m going to focus on regional rail in this post, since with two Tokyo-area exceptions, proper subways are incapable of running express trains without dedicated express tracks due to their high frequency. On a line with a train every 10 minutes it’s feasible to mix trains of different speeds with timed overtakes; on a line with a train every 2 minutes, it’s not. I’m going to use the LIRR and Caltrain as examples, and then apply the derived general principles to other cases in the US, including future regional rail schemes.

The basic tradeoff of express service is that it provides faster service to the express stations at the cost of frequency at the local ones. This can be done in two ways: expresses that stop once every few stations, and local-then-express patterns. Jarrett Walker calls this limited versus express, based on bus service patterns; with trains, both types are called express. The subway in New York, the Chuo Rapid Line, Seoul Subway Line 1, and Caltrain baby bullets are examples of the first kind; the Caltrain limited-stop trains and the peak-hour trains on some LIRR lines are examples of the second kind.

Express trains of either kind but especially the first reduce line capacity, even with very long overtake segments. If train X overtakes train L, then there needs to be an available slot ahead of train L, and after the overtake there’s a slot opening up behind L. The Chuo Rapid Line runs a mixture of local (“rapid”) and express (“special rapid”) trains for most of the day, but at rush hour, there are only local trains, peaking at 28 trains per hour; on the shoulders of rush hour, there are some express trains, with total traffic of about 20 tph. The LIRR runs 23 tph on the Main Line at the peak, so this is an issue, which the LIRR unsatisfyingly resolves by running trains one-way at rush hour. It’s less an issue on Caltrain given constructable overtake locations, but right now the overtake locations are inconvenient and the trains are pulled by diesel locomotives, increasing the stop penalty and reducing the capacity of a mixed local-express line.

The second kind of express service is bad industry practice and should not be used. It avoids the capacity problems of the first kind at low traffic levels, but at high traffic levels the speed difference is still too large. It is used when the trains are a special CBD shuttle and makes it impossible to serve passengers who are cheap to serve, i.e. those getting off short of city center. Caltrain’s limited-stop trains do this because of capacity problems during rush hour, when they need to get out of the baby bullets’ way. The LIRR does this because of a cultural belief that trains exist only to shuttle people from Long Island to Manhattan and back; due to the same belief, it runs trains one-way at rush hour rather than giving up on rush hour express runs as JR East does.

The first kind of express service may or may not be warranted. It depends on the following questions:

1. What is the line’s expected traffic level? Low traffic, up to about 4 tph for a regional line, favors an all-local configuration to prevent cutting local stations’ frequency unacceptably. Very high traffic favors all-local configuration for capacity reasons, or else investment into long overtakes or even full four-tracking. Intermediate traffic, in the 6-12 tph range, is the best zone for express trains.

2. Have local trains already been sped up by use of good industry practices? Level boarding, high-acceleration EMUs, better track maintenance allowing higher speeds between stations, good timetable adherence allowing less schedule padding, and infrastructure preventing delays on one train from cascading to others allowing even less padding can all significantly reduce the speed difference between local and express trains. In some extreme cases, a local train can end up not much slower than an express train hauled by a diesel locomotive.

3. How long is the line, and how many stations does it have? Longer lines and shorter interstations both favor express trains, all else being equal. Intercity rail, which also has higher stop penalties because of the higher line speed, deserves more than one stopping pattern even at low frequencies.

4. How big is the difference between minor and major stations? It is crucial not to confuse current ridership with ridership potential, since lines with express service often pick winners and losers, after which the better-served express stations steal riders who live closer to bypassed minor stops. This is common on Caltrain, where some but not all express stops are major job centers.

5. Can intercity trains plausible substitute for express service?

It is question 4 that makes the difference in many cases. On the LIRR, the Main Line has a clear distinction between major stops (Mineola, Hicksville) and minor ones (all the rest). The Montauk Line does not. Note the ridership levels of the stations, going eastward from Jamaica to the end of electrification:

Main Line:

Hollis: 114
Queens Village: 791
Floral Park: 1495.5
New Hyde Park: 1725.5
Merillon Avenue: 766.5
Mineola: 5174
Carle Place: 386
Westbury: 1951.5
Hicksville: 8107.5
Syosset: 2748.5
Cold Spring Harbor: 2083
Huntington: 5556.5
Bethpage: 2481.5
Farmingdale: 2312.5
Pinelawn: 25
Wyandach: 1758.5
Deer Park: 2708.5
Brentwood: 1375
Central Islip: 1787
Ronkonkoma: 8639

Montauk Line:

St. Albans: 93.5
Lynbrook: 2738
Rockville Centre: 3425
Baldwin: 3371.5
Freeport: 2514.5
Merrick: 3383.5
Bellmore: 3267.5
Wantagh: 2890.5
Seaford: 1804
Massapequa: 2959.5
Massapequa Park: 1672.5
Amityville: 1542.5
Copiague: 1430.5
Lindenhurst: 1791.5
Babylon: 3293

There are three ends of electrification: Babylon, Huntington, and Ronkonkoma. All have markedly more ridership than nearby stations, especially Ronkonkoma, though in all cases it’s an artifact of their being the ends of electrification, with many people driving in from farther east. Ronkonkoma has nothing nearby that justifies its ridership level, the highest of any suburban LIRR station; it’s a park-and-ride that has a lot of ridership because it’s the end of electrification and has express service.

In contrast, in Mineola and Hicksville, there really is a concentration of activity justifying their status. Both have trivial transit usage as job centers, but there’s enough of a core, especially around Mineola, to justify higher service, and Hicksville is also the junction of the Main Line with the Port Jefferson Branch: see the census bureau’s OnTheMap tool.

But there are no special stations on the Montauk Line. Excluding St. Albans, which is in New York itself and has to compete with cheaper and more frequent if slower bus-to-subway options, the ratio between the busiest and least busy stations is 2.4:1. A similarly flat situation occurs east of Hicksville, excluding the two end-of-electrification stations.

What this means is that the LIRR should only run local trains on the Babylon Branch and east of Hicksville, while maintaining express service on the Main Line west of Hicksville when there’s enough capacity for it. A similar analysis of other lines in the New York area should give the following answers:

Hempstead, West Hempstead, Long Beach, and Far Rockaway Branches: all local due to short length.

Port Washington Branch: probably all local due to short length, but if additional local stations are added in Queens, then some express trains to Great Neck may be warranted.

New Haven Line: very long, sharp distinction between major and minor stops all the way but especially west of Stamford, high frequency, four tracks give enough capacity for everything. The current configuration of nonstop trains to Stamford continuing as local to New Haven and local trains turning at Stamford is fine, except that the express trains should also stop at New Rochelle (a junction with the Hell Gate Line, which deserves service, but also a major stop in and of itself, with the third highest weekday ridership of Metro-North’s suburban stations) and maybe also Greenwich; HSR overtake considerations may require stopping also at Rye and Port Chester.

Harlem Line: generally favors local trains, except that White Plains is a major job center and thus a far more important stop than all others, independently of its better service. There are four tracks south of Wakefield, favoring express trains, but conversely charging subway fares and allowing free transfers to the subway would lead to a ridership spike as people switch from the overcrowded 4 and 5 trains. There’s a big dropoff in ridership north of North White Plains, so the current configuration of locals that turn at North White Plains and expresses that go nonstop south of White Plains is fine, as long as off-peak frequency is raised.

Hudson Line: favors express trains because of length and four-tracking. Although on paper there are more and less important stations, this is an artifact of service patterns. The secondary stations in Yonkers serve higher density than the busier stations in the proper suburbs, and the dense parts near Tarrytown are actually in Sleepy Hollow, about equidistant from the Tarrytown and Philipse Manor stations: see the New York Times’ population density map.

Erie Lines and West Shore Line: probably all local since the population density thins too uniformly going north, with Paterson as the major exception. There are somewhat denser anchors at the outer ends of some lines – Spring Valley and Nyack – but Harlem Line-style nonstops run against a capacity problem, coming from the fact that this part of the network is necessarily highly branched.

Rest of New Jersey Transit: the main lines (Northeast Corridor, Morristown) are very long and have some distinguished suburban job and population centers (Metropark, New Brunswick Morristown) deserving express service, but the branches (North Jersey Coast, Montclair, Gladstone) do not. However, the fare structure and off-peak frequency lead to much less ridership on the inner-urban segments in Newark, Orange, etc., than would be expected based on population density. In addition, the difference between major and minor stops is fairly small on all lines when taking electrification into account, sometimes as small as on the Babylon Branch: see ridership data per line and per station.

Although my initial decision in my regional rail plan to pair the Erie lines with the Atlantic and Babylon Branches of the LIRR was aesthetic, creating a northwest-to-southeast line, in reality the systems are fairly similar in their characteristics. More or less the same can be said about the Staten Island-Harlem system. There are no direct connections to intercity rail except at Jamaica and in the Metro-North tunnel to Grand Central, the lines pass through urban or dense-suburban areas, the interstations are fairly short, and there’s relatively little distinction between major and minor stops. (White Plains is the major exception, and Paterson is a secondary one.) This makes the Lower Manhattan-based system much more RER-like than the Penn Station-based one, which is longer-distance and practically intercity at places.

Finally, the same set of questions in the other three major Northeastern cities generally lead to the conclusion that no express trains are needed.

In Boston, there’s too little difference between major and minor stops on each line (see PDF-page 70) – somewhat more than on the Babylon Branch, but much less than on the LIRR Main Line. The most prominent major station is Salem, but the low-ridership stations farther in on the Rockport/Newburyport Line are in working-class suburbs; the ridership there is depressed because of fare and schedule issues coming from competition with buses, and good regional rail would get much more additional ridership from Lynn and Chelsea than from Salem and the suburbs farther out.

In Washington, current traffic demand is so low that express service would seriously eat away at the frequency offered to local stations. MARC and VRE ridership is so low that any analysis of travel demand has to start from geographic and demographic information rather than from preexisting ridership; the only major outlying destination on any of the lines is Baltimore, which can be connected to Washington by intercity rail, and which conversely has much less Washington-bound commuter traffic than the Washington suburbs. The closest thing to justifiable express service is that when the commuter lines closely parallel Metro, they should have wider stop spacing.

In Philadelphia, on most lines, express service eats away at frequency too much. The one exception is the PRR Main Line, with the SEPTA Main Line a possibility. Many lines have sharp differences between local and express stations: for example, Cornwells Heights on the Trenton Line is much busier than the rest. But a combination of low frequency and lack of easy overtakes (on the Trenton Line, the inner tracks should be mainly used by intercity trains, with only the occasional regional rail overtake if required) makes this not useful. The PRR Main Line actually has less difference between major and minor stops than many others, but it is longer and has short interstations and higher frequency. The SEPTA Main Line has the frequency to support multiple stopping patterns, though the population density near the minor stations is high and the problem, as in other Northeastern cities, is high fares and lack of integration with urban transit.

Comparative Subway Construction Costs, Revised

Here is a list of subway projects in the last 15-20 years, in both developed and developing countries. It’s in addition to my initial lists for developed and developing countries, but includes projects mentioned in past blog posts not on those two lists. This is still not an exhaustive list, due to some cities for which I couldn’t find any information (Moscow), cities for which the information from different sources contradicts itself (Bucharest), and cities for which I couldn’t source numbers beyond Wikipedia (Osaka). My rule is that Wikipedia is an acceptable source for construction timelines and route length but not cost.

While the list is meant to be for urban subways, urban rail projects that are predominantly elevated are also included. As far as possible I have tried using PPP dollars adjusted for inflation to give 2010 dollars (2010 and not 2013, because when I started comparing costs that’s what I used). For core developed countries, because inflation rates are similar, I use American inflation rates, using the CPI (not GDP deflator: the two measures have disagreed for a while, and the CPI points to higher inflation). For other ones, I’ve tried focusing on more recent projects, including even some that are under construction, but I use actual inflation rates.

Bear in mind the data is only as accurate as my sources for it and my PPP conversions. Errors of 10-20% in each direction are to be expected: sources disagree on conversion rates, sometimes the years of construction are not made clear so deflating to the midpoint is not reliable, etc. Even larger errors sometimes crop up, for example if old cost figures are not updated after a cost overrun.

Explicitly, the rates I use today are C$1.25 = S$1 = US$1 = 3.8 yuan = 100 yen = 800 won; £1 = $1.50; €1 = $1.25; CHF1 = $1.65.

Singapore Thomson MRT Line: not yet under construction, expected to open 2019-21, S$18 billion for 30 km. This is $600 million/km, all underground. Included only as a lower bound of costs; costs can rise beyond budget but rarely come significantly under it.

Hong Kong Sha Tin to Central Link: a 1-km segment underground (not underwater) is £270 million, under construction with opening expected in 2018. After converting to PPP using Hong Kong’s conversion rate this is $586 million/km.

Singapore Downtown MRT Line: under construction since around 2008, to be completed in 2017; S$20.7 billion for 42 km: $493 million/km. This line is fully underground. This represents a 70% cost overrun already, announced after I previously reported the original budget of S$12 billion.

Budapest Metro Line 4: under construction since 2006, completion expected in 2014, 400 billion forint for 7.4 km. This is $358 million per km. The line is fully underground.

Fukuoka, Nanakuma Line extension to Hakata: construction expected to begin 2014 with line opening expected in 2020, ¥45 billion for 1.4 km: $321 million/km. I do not know for certain that the extension is fully underground, but this is likely, as the preexisting line is underground and the extension follows busy CBD streets.

Cairo Metro Line 3, Phase 1: opened 2012 with construction since 2006, LE4.2 billion for 4.3 km. This is $310 million/km. The phase is fully underground.

Kawasaki Subway: under construction, opening expected in 2018, ¥433.6 billion for 16.7 km: $260 million/km. The line is fully underground. Update: people in comments explain that the line was actually canceled; the link in this paragraph is just a plan.

Stockholm City Line: to open in 2017, 16.8 billion kronor (2007 prices) for 6 km of tunnel and 1.4 km of bridge: $259 million/km.

Sao Paulo Metro Line 6: construction due to begin in 2014; 7.8 billion reais for 15.9 km: $250 million/km. The line is 84% underground.

Sao Paulo Metro Line 4: construction began in 2004, first phase opened in 2010, completion expected in 2014; 5.6 billion reais for 12.8 km: $223 million/km. The line is fully underground.

Dnipropetrovsk Metro extension: under construction since about 2008, opening expected in 2015€367 million for 4 km. After PPP conversion this is $214 million/km. It appears to be fully underground.

Malmö City Tunnel: built 2005-10, 9 billion kronor for 4.65 km: $212 million/km. This is a fully underground project.

Bangalore Metro Phase 2: to be opened by 2017, 264 billion rupees for 72.1 km. This is $164 million/km. I do not know what proportion of the project is underground; it does not seem to be large, as the extension of the phase 1 lines are all outbound, and only line 4 seems to have significant tunneling, about 14 km by pure Wikipedia eyeballing.

San Juan Tren Urbano: built 1996-2004, $2.28 billion (2001 figures, see PDF-p. 145) for 17.2 km: $163 million/km. The line is only 7.5% underground by direct inspection on Google Earth.

Lucern Zentralbahn: built 2008-13, CHF250 million for 1.32 km of tunnel: $151 million/km.

Hangzhou: I can’t find any ex post numbers, but in both 2005 and this year (Chinese) officials pegged the cost of future construction as ¥550 million/km: $145 million/km.

Sofia Metro Line 2: built 2008-12, €952 million for 17 km. After PPP conversion, this is $148 million/km. The line appears to be almost fully underground: the numbers here do not fully add up but point to 1.3-2.9 km above ground (7.6-13% of total line length) in one segment while Wikipedia’s line map shows only that segment with above-ground segments.

Thessaloniki: I can’t find any ex post numbers, but in 2005 the budget for the first phase, under construction to be opened in 2016, was €798 million for 9.6 km: $104 million/km. The second phase received bids last year and is expected to open in 2017, with an estimated cost of €518 million for 4.78 km: $135 million/km. Both phases are fully underground.

Vancouver Evergreen Line: under construction since 2012, completion expected 2016; C$1.4 billion for 11 km: $103 million/km. Only 2 km of the system, 18%, is underground, but Vancouver seems to have an unusually low underground construction cost premium.

Dubai Metro (lines 1 and 2): built 2005-11, Dh28 billion ($6.9 billion in PPP2010US$) for 75 km: $92 million/km. Only 13 km of the system, 17%, is underground.

Mexico City Metro Line 12: built 2007-2012, $1.8 billion for 26.4 km. After PPP conversion, this is $90 million/km. From a Google Earth overlay map, this line is 49% underground.

Seoul Sin-Bundang Line: built 2005-11, 1,169 billion won for about 18 km (sources disagree on whether it’s 17.3 or 18.5): $87 million/km. The line is 100% underground according to YouTube videos.

Bangalore Metro, Phase 1: built 2006-11, 8,158 crore rupees for 42.3 km: $93 million/km. Only 8.82 km, or 21% of the project, is underground. See above for Indian construction costs in a heavier-tunneling setting.

Helsinki Westmetro: under construction since 2009 with completion expected in 2015, €714 million for 13.5 kilometers: $66 million/km. The line is fully underground.

Seoul Subway Line 9: opened 2009, 900 billion won for 27 km: $43 million/km. The line is almost fully underground by direct inspection on Google Maps.

Barcelona Sants-La Sagrera tunnel: built 2008-11, €179.3 million for 5.8 km: $39 million/km. This project is intercity but fully underground.

Just from eyeballing the data, spliced together with the two older lists, the biggest correlation of each country’s construction costs is with the construction costs of other lines in the same country. When there is more than one project listed separately in a city – e.g. Seoul, Singapore, Sao Paulo – the projects have similar costs. This persists across different cities in the same country, judging by the similarity between Bangalore Metro’s Phase 2 cost and the Delhi Metro’s cost from a previous list and by the similarity between Hangzhou and Beijing’s costs.

The Problem with Anchoring

A major idea due to Jarrett Walker, adopted with gusto by Vancouver’s Translink, is that transit should be anchored at both ends. That is, transit lines should have busy destinations at both ends, and should strive to reorient development such that the maximum intensity is near the ends. I was skeptical about this from the start, but now that I live in Vancouver and see the practice every time I go to UBC, I realize it’s much worse.

The Translink document justifying the layout has a figure, Figure 10 on PDF-page 15, showing that if development intensity peaks in the middle, then the bus will be overcrowded in the middle and empty at the ends. In contrast, if development intensity peaks at the ends, then the bus will be crowded but not overcrowded the entire way. Or, as Jarrett says, “If a transit line is operating through an area of uniform density, about 50% of its capacity goes to waste.”

Both in theory and in practice, this argument fails to note that a bus with development at the ends will be overcrowded the entire way, because people will travel longer. If UBC were located around Central Broadway instead of at the very west end of the metro area, people would just have shorter travel time; at no point would there be more westbound a.m. crowding because at no point would there be more westbound passengers traveling at the peak. There would be more eastbound a.m. crowding, but that’s not the Broadway buses’ limiting factor. Of the top four routes for passups, which have far more than the fifth route, three are east-west with strong anchors at both end (UBC at the west, the Expo Line at the east) and one, the third worst, is a C-shaped amalgamation of two north-south routes, with peak development downtown, in the middle of the C.

On a theoretical level, development intensity is a result of high land prices justifying high density, and in an urban area high land prices come from proximity to other urban land. In cities without topographic or political constraints on development, the CBD is always near the center of the metro area, and in coastal cities the CBD is usually near the shore but near the center along the axis parallel to the shore. Major secondary nodes usually arise in areas close to many suburbs, often the richer ones, and there’s travel demand to them from all directions: see for examples La Defense near Paris and Shinjuku and the other secondary CBDs in Tokyo. Some of those nodes happen to be near the shore (UBC, Santa Monica and Long Beach, Coney Island) but most aren’t. Any newly-built anchor will sprout further development around it unless there’s very strong local resistance. To connect all those neighborhoods that lie beyond the secondary CBD, unanchored transit lines are then unavoidable.

We’re left then with anchors that are at geographic edges, such as on shores. Those raise travel distances, because people can only live at one direction from them, so for a given residential density they will have to travel longer on average. They look attractive to transit managers because they also make the buses more uniformly full, but they’re worse for passengers who have to travel longer, often standing the entire way because of overcrowding. They’re not even good for transit agency finance, because urban transit invariably has either flat fare (as is the case within Vancouver proper) or fare that depends on distance fairly weakly. Short trips generate as much or almost as much money for the agency while requiring less effort to run because of lower crowding levels. Trips in which most passengers ride end to end are the least efficient, unless they can overcome this with very high crowding levels all day.

Now, what does help finances as well as the passenger experience is bidirectional demand. Anchors are good at that. However, what’s just as useful in cases of asymmetric peak demand is destinations that are short of the most crowded points. For example, in Manhattan the north-south subways fill as they go southward in the a.m. peak. This means that commercial buildings north of Midtown, generating passenger traffic that either is northbound (hence, reverse-peak) or gets off the train before it gets the most crowded within Midtown, add ridership without requiring running more trains. The MTA’s guidelines explicitly call for matching frequency to demand at the most crowded point of each line based on uniform sets of peak and off-peak crowding guidelines. This favors not outlying anchors, but development sprinkled uniformly along transit lines outside the CBD. The same development in the North Bronx would have low transit mode share (UBC has high transit mode share, but it’s at a geographic edge, and on top of that it has a huge body of students), while on the Upper East Side and Upper West Side it would have high transit mode share. The only outer ends where heavy upzoning is appropriate are those that aren’t really ends, such as Flushing and Jamaica, preexisting secondary centers in their own right to which people take the subway from the west and drive from the east.

De facto, Translink makes cost figures available for each bus route, and we can compare costs per boarded passenger on the east-west routes and on the north-south ones. The east-west routes have an initial advantage because they have bidirectional peak demand, whereas the north-south and C-shaped ones do not, and have few destinations short of the CBD, mainly just on Central Broadway or Commercial Drive. Despite this inherent east-west advantage, cost per rider is not lower on the east-west lines. Of the top ten route numbers, there are five balanced east-west routes: 99, 9, 41, 49, 25; and four north-south or C-shaped ones serving downtown: 20, 16, 8, 3. (The 135 is east-west connecting downtown with SFU, and could be included in either category.) Going in the same order as above, the east-west routes cost $0.61, $1.21, $1.10, $1.31, $1.47 per passenger, while the north-south ones cost $1.02, $1.29, $1.09, $1.06. (The 135 costs $1.32.) The three routes that interline to UBC on 4th Avenue – the 4, 84, and 44 – cost $1.62, $1.30, and $0.78 respectively, averaging to $1.30; the 84 is anchored at the Millennium Line, the 44 is anchored downtown, and the 4 is anchored downtown but also continues farther east.

The 99 is much cheaper to run than the other routes despite its high proportion of end-to-end ridership, but it is also critically crowded and benefits from multiple peaks as it serves both a secondary CBD and a university; it is also express, which among the other routes under discussion is only true of the 44, the 84, and the 135. Among the local routes, the north-south routes are actually a bit cheaper to run than the east-west routes even if we exclude the 4 as a not fully anchored exception. The 20, the 8, and the 3 all have their maximum development intensity at the downtown end with some extra development in their inner areas, near SkyTrain and Broadway, and a lot of medium-intensity development at the tail. This provides suitable short-of-CBD destinations adding passengers at low cost.

For one measure of productivity, we can divide the number of boardings per hour by the average load. The result is the reciprocal of the average number of hours spent by each passenger on the bus; a higher number means each passenger spends less time on the bus, indicating higher turnover, or equivalently more revenue relative to crowding. The 99, 9, 41, 49, and 25 have ratios of 2.79, 3.13, 2.65, 1.93, 2.13; the 20, 16, 8, and 3 have ratios of 3.26, 2.73, 3.57, 3.24. The 20, 8, and 3 again look very good here, helping explain their low operating costs and also their low crowding (they rank 12th, 27th, and 20th respectively in passups but 2nd, 6th, and 7th in weekday ridership). The 49 and 25, both highly anchored routes, do not look as good, and indeed have many passups relative to ridership (they rank 1st and 4th in passups but 8th and 10th in weekday ridership); they have the redeeming feature that they protrude slightly into Burnaby, where zonal fares are higher, but judging by a map of the passups, the 25 seems to get a large majority of its ridership strictly within Vancouver, with Nanaimo Station as the eastern anchor rather than Brentwood.

We can extend this analysis further by looking at New York’s bus operating costs. Cap’n Transit laboriously compiled a spreadsheet of operating cost per New York City Transit bus route. Within Manhattan, the pattern is that east-west routes have much lower operating costs per passenger than north-south routes. The M15, the busiest route in Manhattan with ridership comparable to that of the 99 in Vancouver and with the best finances among the north-south routes, almost breaks even on direct operating costs; most of the major east-east routes are outright profitable counting only direct operating costs. The key difference is that the east-west routes are much shorter, so passengers are paying the same amount of money for less distance. In his own analysis, the Cap’n notes that the express bus with the best finances is also one of the shortest, and that in general the profitable-after-direct-operating-costs buses have many transfer points to the subway, which suggests short trips as well.

Having seen more evidence for the theory that good bus finances require short trips rather than endpoint anchors, we can go back to Vancouver and compare more routes. The busiest north-south route not on the above list, the 2/22, works more like the 16 than like the 20, 8, and 3: not only is the 22 C-shaped rather than terminating downtown, but also it serves corridors that are less busy than Commercial and inner Main, reducing the availability of short trips. The shorter 2, overlying the longer 22, has 3.42 boardings per hour per load, but still costs $1.43 per rider; the 22 has only 2.15 boardings per hour per load and costs $1.61 per rider, and also ranks 3rd citywide in passups versus 11th in weekday ridership. On both the 16 and the 22, the north-south legs (Arbutus and Renfrew for the 16, Macdonald and Clark/Knight for the 22) are streets that aren’t very busy by themselves, but instead act as important cross-streets for Broadway and other east-west streets. Here are Knight, Renfrew, Arbutus, and Macdonald, and here are, by contrast, Commercial, Fraser, and Main, all around the same cross avenue (near but not at 16th).

The same is true of the east-west buses. The 99, 9, and 41 have better finances than the 49 and the 25. They also do better on passups, ranking 2nd, 11th, and 10th versus 1st, 3rd, and 4th in ridership. The 99 has much better finances than all other buses, which can be chalked to its overcrowding, but ultimately comes from continuous intense development all over Broadway making it a prime corridor. 41st has some of this development as well: here is how a strip of it looks close to the cross street I live on. Compare this with 49th and King Edward around the same cross street. This is not cherry-picked: 49th and King Edward just aren’t commercial streets, and even where they act as important cross streets such as at Cambie there’s not much development there. Of course 4th does have this commercial development and is almost as expensive as 49th and King Edward, but its commercial development is discontinuous, and the relatively intense section between Granville and Balsam is short enough that people can walk it.

So what this means for transit-friendly development is that it should not worry about anchoring, but instead try to encourage short trips on local transit. In his original post about Vancouver’s anchoring, Jarrett says of Marine Drive, at the southern edge of Vancouver proper, “From a transit efficiency standpoint, it would be a good place for some towers.” This is not good transit: from the perspective of both costs and ridership any residential development south of Broadway in which people take the bus downtown is equivalent, so might as well put it immediately south of Broadway or at King Edward, 41st, or 49th to connect with the east-west bus routes and let people live closer to work. Commercial development, too, is best placed short of downtown, because if it’s on Marine Drive people will drive to it whereas if it’s along the blocks immediately south of Broadway many won’t.

Better would be to do what Vancouver hasn’t done, and encourage medium-intensity development all over the major corridors, of the kind that exists on Commercial, Fraser, Main, and 41st and allows their respective bus routes to serve productive short trips, generating low costs without excessive crowding. Towers on Marine Drive, to the extent that their inhabitants would even use transit instead of driving, would clog all the north-south buses. Mixed-use medium-rise development running continuously along Arbutus (which already has an abandoned rail corridor that could make a relief light rail line if the Canada Line gets too crowded) and the major east-west corridors would have the opposite effect, encouraging local trips that wouldn’t even show up at the most crowded point of the line. I’ve argued before that this urban layout is good for walkability, but it appears to also be good for surface transit productivity.

This is also relevant to upzoning around SkyTrain stations. There has not been so far any upzoning around Cambie, even though the Canada Line has been in operation for 3.5 years and was approved for construction over 8 years ago, but there will be some very soon. Vancouver’s draft plan, as shown on PDF-pages 26-27, permits 4 floors of residential development on the cross streets with the stations, 6 on Cambie itself, and between 6 and 12 with mixed use near the stations themselves. Continuous commercial development will be permitted only on Cambie between 41st and 49th. This will be of some use to the east-west buses because there will be more destinations at Cambie, but it will not create the same variety of small destinations available on Main, Fraser, 41st, Commercial, and Broadway, not without further upzoning near intersections that are nowhere near SkyTrain. It’s better than the towers of the Burnaby stations, but it’s still not very good. There is commercial upzoning near Marine Drive, but that can’t be very transit-oriented given the location, and it can’t do much for north-south bus productivity since in the nearby neighborhoods car ownership is high.

It’s too late to change the rezoning plan to permit more linear commercial development on the cross streets, but it’s possible to do better when Vancouver gets around to building Broadway SkyTrain. On Broadway itself, general intensification, allowing more residential density and replacing residential-only zoning with mixed-use zoning, should suffice. There is continuous commercial development from east of Cambie to west of Arbutus, with a two-block gap to Macdonald, and a one-block gap between Macdonald and Alma; both gaps are within a few hundred meters of the cross streets and can be closed easily. The Alma-Sasamat gap on 10th is probably too hard, though. The Arbutus-Macdonald gap on 4th can also be closed, though those blocks are nearly a kilometer from where the stations would be. But it’s as important to allow commercial zoning extending as far south as possible on the major north-south streets, especially Arbutus. Continuous mixed-use zoning should extend at least as far as 16th, and maximum residential density should be at a minimum 4 floors and ideally 6, as Arbutus, Macdonald, and 16th are very wide and the intersections feel out of scale to the current 1-story development.

Of course, this principle of design is true only of urban transit, both surface and rapid. Once the stop spacing increases to regional rail levels, it is no longer feasible to have continuous commercial development, and usually the street networks of the different suburbs are separate anyway without continuous arterials. In all cases it’s important to allow commercial zoning around stations, but the spiky development characteristic of the Expo and Millennium Lines becomes a better idea the longer the stop spacing is. Endpoint anchoring also becomes more justifiable at near-intercity scales, such as New York-New Haven or Boston-Providence: the fares are closer to proportional to distance, and also neither New Haven nor Providence is sprouting suburbs at such scale and distance that it’s justifiable to extend Metro-North or the MBTA with their usual stop spacing past those cities. But at the scale of urban transit, or even inner regional rail, the natural endpoint of a line is not a secondary anchor, and transit agencies should control peak-to-base ratios by commercial upzoning along corridors and near many stations outside the CBD rather than by making people ride transit kilometers longer than would be necessary if the zoning were different.