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| Re: Atlantic Avenue speed limit lower to 25 mph (292393) | |||
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Re: Atlantic Avenue speed limit lower to 25 mph |
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Posted by BrooklynBus on Thu Apr 17 11:31:08 2014, in response to Re: Atlantic Avenue speed limit lower to 25 mph, posted by Stephen Bauman on Mon Apr 14 23:34:22 2014. Any type of road geometry in Upstate New York takes up considerable space. You could never have that type of road geometry in midtown Manhattan. Even our entrances and exits to highways in NYC are very compressed and unlike anything you have upstate, so what you are saying is just non-sensical. Since we don't have the same road geometry, we can't possibly have the same speeds. We should have speeds based on the road geometry we do have.As far as Queens Blvd is concerned, I am only referring to the main roadway where there shoudn't be any pedestrians except for crossing at the crosswalks at the intersections, some of which could be better designed so all crossing is at right angles, not on diagonals. Of course 40 mph would be way to high for the service roads, but it isn't for the main roadway. Let me understand what you said about braking. You say 3 seconds is ample stopping time for 30 mph without having to slam on the brakes. Then you say it takes 1 second to react. That leaves 2 seconds to brake. Then you say that you brake at the rate of 6.7 mph/ second. If true, then in two seconds, you can only stop from a speed of 13.4 mph. Then in 3 seconds, you can stop from 20.1 mph. In 4 seconds, you still wouldn't be able to stop at 30 mph if it took a one second reaction time to hit the brakes. So how can you also say that 3 seconds for 30 mph is adequate without slamming on the brakes if you are just approaching the signal when it turns amber? People in Brooklyn regularly travel across the entire borough on local streets or a distance of up to 11 miles because we have such few highways. |
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