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Re: Will Queens Bus Redesign really speed things up?

Posted by Stephen Bauman on Wed May 29 10:26:56 2019, in response to Re: Will Queens Bus Redesign really speed things up?, posted by pragmatist on Wed May 29 07:19:58 2019.

Here's the basis for this from NCHRP REPORT 731

Y = t + V/(2a + 2Gg) Equation 2
Where:
Y = yellow interval (s);
t = reaction time (typically 1 s);
V = design speed (ft/s);
a = deceleration rate (typically 10 ft/s 2 );
G = acceleration due to gravity (32.2 ft/s 2 ); and
g = grade of approach (percent / 100, downhill is negative
grade).

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