* The speed limit on Prospect Park West is 30 miles per hour.
"The speed-gun data shows without a doubt that the redesign of Prospect Park West has had a tremendous traffic-calming effect," said Eric McClure, campaign coordinator for Park Slope Neighbors. "Prospect Park West has been transformed from a noisy speedway on which nearly every vehicle was speeding to a calmer, quieter neighborhood street on which the great majority of drivers are now obeying the speed limit. What a difference a lane makes."
Speed is a major factor in all vehicle crashes, and has serious consequences in crashes involving pedestrians. Studies have shown that a pedestrian has only about a 15% chance of survival when hit by a vehicle traveling at 40 mph; the survival rate jumps to 95% when speed is reduced to 20 mph.
In addition to achieving the goal of significantly reducing vehicle speeds on Prospect Park West, the redesign has shortened pedestrian crossings, gotten cyclists off the sidewalk by providing them with a safe, protected two-way bicycle path, and added an important and convenient link in the city's bicycle network. The new bike path has already proven very popular with cyclists, especially young and novice riders who gravitate to the safety of a protected lane.
About the speed survey: the post-redesign speed survey was conducted with an accurately calibrated hand-held radar gun at Prospect Park West and Garfield Place, on July 17th and July 24th, in mid-afternoon, with a random sample of 352 vehicles. The initial speed survey was conducted with an accurately calibrated hand-held radar gun at Prospect Park West and Garfield Place, on March 20th and 21st, 2010, in mid-afternoon, with a random sample of 251 vehicles. The raw data is available upon request.
About Park Slope Neighbors: Park Slope Neighbors is a grassroots neighborhood organization dedicated to the protection and enhancement of quality of life in Park Slope, Brooklyn.