South Philly Crosstown Bus Is A Mistake

January 3, 2012 |  by  |  Soapbox  |  , , ,

Courtesy The Transit Pass

Last month, SEPTA proposed a new South Philadelphia Crosstown bus service, which would link South Philly east of Broad with Market West, with 10- to 15-minute frequency. SEPTA has put quite a bit of thought into this proposal, with an online survey and open house (from half a month ago). My best knowledge is that the proposal would be a 57 spur down Market, which is much better than the initial rumors, but still falls prey to the critique below.

The Crosstown sounds better on paper than it really is. In reality, it’s poor planning. Jarrett Walker, at Human Transit, explains why. In Walker’s system, the key for transit’s usefulness is not having one-seat, point-to-point rides, but rather a core network (what he likes to call a “frequent grid”) which offers one- or two-seat rides from anywhere to anywhere in the city.

Philadelphia already possesses such a grid, but it is neither highlighted nor promoted, and so we are blind to it. The bus network in our urban core consists of routes like the 2, 15, 23, 43, 47, 48, 57, G, K, etc., which run on numbered streets and major east-west avenues in such a way that they all intertwine. This grid is ancient, dating back to the days when Brill streetcars roamed the streets, and has perturbations (such as the 17 and 33) which date back to the days when core activities were concentrated east of Broad. This grid is also frequent–none of its core routes have a frequency less than 20 minutes, and most far more. Finally, it is busy: the vast majority of SEPTA’s busiest routes, such as the 23 and soon-to-be-split C, are along it. (Were SEPTA not tasked with running uncrowded and infrequent suburban buses, and able to concentrate solely on major assets like the rail network and this grid, its fairbox ratio would be much higher.)

To put it another way, in its bus system, Philadelphia has a massive–but underappreciated–transit asset. As such, any new proposal needs to be examined not in a vacuum, but also in light of how it relates to this grid. Proposals which reinforce the network as a key piece of our transit infrastructure (by, for example, making individual routes in it more frequent, or streamlining transfers, and so on) are thus to be prized, while those which are ambivalent to it, or worse, undermine or consign it, are not.

My criticism of the South Philly Crosstown plan comes from this understanding of the background network. The proposed service would duplicate existing service no matter how it’s implemented. If it were implemented going north along 3rd/4th and then west along Market, it would duplicate the 57 and then one of the s-l-o-w buses along Market (and indeed, the El). Were it implemented west along Washington Avenue and then north along 18th or 20th (south along 19th), it would duplicate the relatively infrequent 64 and very frequent 17. Were it implemented along 3rd/4th-Washington-Broad-Market, it would duplicate the 57, 64, C, and Market Street buses. The grid network in this part of town is as dense as it is old, and needs to be promoted, instead, to its utmost.

Example grid. Courtesy Human Transit

Instead of the South Philly Crosstown, SEPTA should (at much less expense): Make the 64 more frequent, from an eternal 20 minutes to a less-frustrating 15 or even 10. The Washington Avenue bus collects from a very large swath of South Philly and can be used to distribute to northbound Center City buses (2, 7, 17) and the Penn Medicine job center. In fact, why not have a route spur/detour there during peak hours?

After this is done, remaining unallocated buses can be put to work on the 2, which, whatever its clockface frequency, tends to run (and feel) late no matter the time of day. Ensuring a 10- or 15-minute headway on a busy core route just seems sensible.

(This same principle can apply to all of the routes in the network with perceived or real frequencies under 15 minutes–routes like the 40, 43, or G.)

Lastly, improve transfers ahead of the new fare system. This can be done by moving bus stops so that the most popular transfers have the shortest traversal distance, by adding/improving bus shelters at popular transfer points, and by possibly even making some of the busiest transfers free for all users, not just a pass perk.

None of these possibilities cost any more than a whole new route, and all enforce the importance of the core service network–a frequent grid presciently laid out by planners more than a century ago.

About the author

Stephen Stofka is interested in the urban form and the way we change it. A graduate of the Geography and Urban Studies program at Temple University, he enjoys examining the architecture, siting, streetscapes, transportation, access, and other subtle elements that make a city a city.

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5 Comments


  1. Totally agree with you here, Steve. One admittedly nitpicky thing to call out though… I wouldn’t call the new proposed route a “crosstown”.

    Usually “crosstown” is used to describe routes travelling between two areas of a city that are not the CBD. Crosstowns, under that definition, serve non-commuter trips or act as feeders to higher-frequency, often rail, routes.

    I’d call anything running perpendicular to Broad a “crosstown”. If a route allows you to get downtown, like any of our L-shaped routes, it’s something else. (Or at least a hybrid? I don’t have a better name to suggest!)

    Anyway, you’re spot on with applying Jarrett’s frequent grid ideas to Philly. We’re fantastically equipped for it.

    • Well the use of the term “crosstown” for this route didn’t appear with me and appears to be either SEPTA’s or PlanPhilly’s devising. I don’t want to redub this particular proposal, though, even if it were more accurate, because then nobody would know what the heck I’m talking about.

      • Yeah, I realized that after I followed through with reading some of the links… Wouldn’t it be nice if SEPTA were consistent in the way they label their routes? Ok… done nitpicking for now.

        The L-routes are great for providing one seat rides, but SEPTA really ought to focus on getting people from the high and low numbered streets to Broad Street. The subway has enormous unrealized capacity, and it only makes sense to use the infrastructure you have. Having a high frequency, high quality bus grid over top of the subway backbones would really maximize what we have.

  2. The example grid shows the East side of Portland Oregon. As a native Portlander, I would love for Philly’s bus system to run as efficiently as Portland’s which has almost every bus line going through the “bus mall” in the downtown area, making it possible to get almost anywhere with a single, free transfer. Not sure if the graphic was intended to be of Portland, but Portland’s bus system should be instructive for Philly.

    • Well I took the grid from an example on Human Transit, and given that Jarrett Walker was one of the principal architects behind how that city’s transit network is laid out, I’m not at all surprised it wound up there. Walker was instrumental in architecting the core networks of many West Coast cities.

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