New York slowing down ... literally .. ......
A city as fast paced as this going at 25 mph ..
..........
Officials Plan Adjustments as New York City Slows to 25 M.P.H.
By
MATT FLEGENHEIMERJUNE 20, 2014
Mayor Bill de Blasio’s traffic safety push yielded perhaps its most significant change early on Friday, when the State Legislature approved a plan to reduce the default speed limit in New York City to 25 miles per hour.
Now comes the hard part: retooling the highly choreographed traffic dance in a city of 14,000 taxis, 12,700 signalized intersections and 6,000 roadway miles.
The city will have some time. The reduction from 30 m.p.h. cannot begin until 90 days after Gov. Andrew M. Cuomo signs the bill into law. (A spokesman said Mr. Cuomo was expected to do so.)
In the interim, transportation officials have begun plotting the details of the change, with plans that include the highly technical, like recalibrating automated enforcement cameras, and the visual.
“We’ve got to print up new signs,” said Polly Trottenberg, the city’s transportation commissioner, adding, “There are more ‘30’ signs than you would think.”
Among the most far-reaching changes will be adjusting the timing of traffic signals across the city. Ms. Trottenberg said the department set its lights “such that you will have a smooth progression of green lights if you’re driving safely at the posted speed limit.”
As a result, the department said, the amount of time between successive signals turning green will increase.
According to Transportation Alternatives, a cycling and pedestrian advocacy group, the city once calibrated some of its lights for speeds above the posted limit.
“Traffic engineers in the past have been less concerned about speed limit compliance and more concerned about maximum throughput,” said Paul Steely White, the group’s executive director.
Advocates for both pedestrians and drivers agreed that any safety gains from the changes would be limited without more aggressive police enforcement.
John A. Corlett, the legislative committee chairman for AAA New York, said he was skeptical of “how vigorously the N.Y.P.D. enforces 30 on local streets” as it is.
Along some congested corridors, many drivers have little choice but to slow down. According to a Transportation Department report last year, the average speed of a taxicab south of 60th Street was 9.3 m.p.h.
In a video criticizing recent legislative productivity in Albany, Rob Astorino, the Republican candidate seeking to unseat Mr. Cuomo, a Democrat, marveled that lawmakers had focused on “lowering the speed limit in a traffic-choked city where you’re lucky to go 5 miles an hour.”
The speed reduction was a
top priority under Mr. de Blasio’s “Vision Zero” plan to eliminate traffic deaths by 2024, an approach
adopted from Sweden.
Ms. Trottenberg predicted that New Yorkers would notice little change in their travel times, noting that driving efficiency is often “determined by the intersection far more than it’s determined by the speed on the straightaways.” She also cautioned that roadways with current speed limits of more than 30 m.p.h. would not necessarily drop to 25.
After the change, the city’s speed-tracking cameras, all located near schools, will issue tickets to drivers who travel at least 36 m.p.h. in a 25 m.p.h. zone, according to the Transportation Department, down from the 41 m.p.h. threshold under the current limit.
The difference could be significant. In a memorandum earlier this week, Sherif Soliman, the city’s director of state legislative affairs, said that pedestrians had a 30 percent chance of surviving the impact of a vehicle traveling 40 m.p.h. At 35 m.p.h., the survival rate increases to 50 percent.
The administration also expects to conduct a public awareness initiative concerning the new speed, though it is unclear what form this might take.
Clearly, one recent Transportation Department campaign will have to be revised. A
series of advertisements during the Bloomberg administration trumpeted the benefits of following the speed limit. The title: “That’s Why It’s 30.”