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Bus Rapid Transit

Are American Cities Building Top-Notch BRT or “Light Rail Lite”?

12:47 PM EDT on August 6, 2008

select_bus_bronx.jpg
NYC's Select Bus Service shaves trip time appreciably, but doesn't yet fit the definition of a world-class BRT system.

What makes a bus system "rapid"? Trying to agree on an answer can get contentious. With a big menu of possible features for transit operators to choose from -- pre-payment, priority signal timing, and physically separated lanes, to name a few -- the quality of systems labeled "Bus Rapid Transit" varies widely. Some live up to expectations for "surface subways" and some don't.

Over at the City Fix, Dario Hidalgo notes the problems that arise from the inconsistency:

More than just semantics, this confused nomenclature can lead toreal-world policy problems, diluting the concept of BRT andundercutting efforts to promote it with skeptical populaces andpoliticians.

To set things straight, Hidalgo recommends a term coined by Allan Hoffman and Alasdair Cain in a recent article in Mass Transit Magazine: "Quickways." Here's the quick and dirty version of how they distinguish Quickways from other forms of BRT:

A Quickway, by definition, is a specialized bus guidewayincorporating a number of essential elements.

It is fully segregated from automobile and pedestrian traffic; neither cars nor people cross its path nor do private automobiles operate along the right-of-way. The geometries support high-speed operations between stations. Stations are equipped with passing lanes, so that express vehicles can continue through without needing to stop.

Hoffman and Cain's piece is well worth the read. The Quickway model, they point out, has yet to take hold in American cities, where the prevailing type of BRT is what they call "Light Rail Lite." Whereas cities like Bogotá and Brisbane have invested in complete BRT networks with an eye toward achieving ambitious ridership targets, the "Light Rail Lite" model looks to improve service along individual corridors at minimal cost.

Not every ingredient proposed by Hoffman and Cain may be feasible -- or desirable -- for American cities, but the authors believe that aiming for the Quickway ideal can help deliver the mode switch and sustainable land use patterns which full-fledged BRT enables:

Quickways are not merely a graduated step-up in BRT-supportiveinfrastructure; they imply their own logic on system design andoperations and make possible services that otherwise would not becost-justifiable. They mesh well with other modes and create far moreuseful transit networks, extending systemwide benefits beyondindividual corridors. They can create economies of scale for transitoperations, virtuous circles that can support wider-reaching mobilitygoals, economic development, and sustainable urban form. They should betreated as a distinct mode, particularly for network and corridor-levelplanning, and one with great potential for helping American citiesachieve phase shifts in the role that transit plays in their dailylives and long-range growth.

Photo: Kriston/Picasa Web

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