On Thursday, the day of the anti-bike lane rally and adjacent counter rally, the New York City Department of Transportation released preliminary “before and after” data about speeding and sidewalk riding, the two major concerns the neighborhood had about the street.

Instead of 46% of people riding bikes on Prospect Park West sidewalks, only 4% do. And only 11-23% exceed the speed limit, where before the new bike lane, 73-76% would. Download the document (PDF) via TransportationNation.

A commenter (BicyclesOnly, from NYC) weighs in:

One of the main complaints against the redesign is that it reduces the roadway from three lanes to two, which means that double parking (which is very common here) effectively reduces the roadway to one lane. At one lane, you get some congestion and delays.

[…]

But is that really so bad? The impetus behind this project was concerns for rampant motor vehicle speeding. Because this roadway at three lanes had excess capacity, more than half the vehicles can and routinely would exceed the speed limit, creating a barrier between park slope residents and their park. 90% of the Park Slope community lives, not on Prospect Park West, where this project was installed, but to the west.

So to be fair, I wouldn’t suggest that the project has had NO effect on residents. But from a safety and utility perspective, and looking at the entire community of people who use this corridor–not just the people who live on it–the trade offs clearly are worth it. That’s why the local Community Board endorsed this project. And it bears mention that the Community Board is hand-picked by the Borough President, who is the leading OPPONENT of the project. So the community review process was NOT rigged in favor of approval.

Photo showing bike lane construction in progress.