Wanted: Crowd-Sourced Transportation Analysis
My recent post refuting David Owen's attack on congestion pricing ignited a long, rich thread. Here's one comment, from "Jonathan," that struck a nerve:
[A] cordon-pricing plan … which doesn't charge center-city residents could result in an increase in those residents' automobile use. If the streets are free of outer-borough traffic, more of my Manhattan neighbors might drive to work, or simply make extra automobile trips within the cordon that without CP [congestion pricing], they would have made by subway or taxi.
Jonathan's right: Any Manhattan cordon-pricing scheme will lead to an uptick in car trips that start and end within the charging zone. It's one of those "rebound effects" that congestion-price modeling needs to account for, and which I've taken pains to incorporate in my Balanced Transportation Analyzer pricing model.
Indeed, I daresay that the BTA handles just about every issue ever raised on this blog about congestion pricing. How many transit users will switch to cabs? Will variable tolls really flatten rush-hour peaks? Won't faster roads lure back the trips killed off by the toll (Owen's conundrum)? And many more.
Technically, the BTA is a spreadsheet. But I think of it as a vast mansion, whose 46 interlinked "rooms" (worksheets) are stocked with precious data and ingenious algorithms for cracking open questions like these:
- How does congestion on weekends compare with weekdays?
- How sharply do traffic speeds rise as volumes fall?
- Which boroughs and counties stand to pay the most with congestion pricing?
- Will a cordon toll lead to more bicycling, and will that improve public health?
- Can decommissioning vehicle lanes increase congestion pricing's benefits?
- Which will boost transit use more: lower fares or better service?
- How many fares does a cabbie get in a ten-hour taxi shift, with and without pricing?
Multiply that list a hundredfold and you get a sense of the BTA's hidden treasures.
I say "hidden" because, except for a few mavens like "Gridlock" Sam Schwartz, who calls it "the best [modeling] tool that I have seen in my nearly 40 years," the Balanced Transportation Analyzer remains largely untapped by advocates. To me, it's as if we're all starving while this rich storehouse next door goes to waste.
Which prompts me to ask: Why is the BTA so underused? Is our community missing out on a valuable tool? What should we do about it?
Let's make this an open thread, with emphasis on what can we do together to make the BTA more accessible and useful to New York's livable streets community. (The model is adaptable to other cities, so those of you not from NYC are also invited.)
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New Yorkers can expect more misery on the streets as well as underground if the MTA has to follow through on the
