Minimum Green Time - Pedestrians

[rayray91]

Hey, Everyone - I need some help with this problem. I can't seem to find the equations to solve this problem in the 2000 HCM. :reading: This is from the NCEES Sample questions which reference the 1997 HCM. Any help is greatly appreciated. Thanks!

Problem: For the signalized interesection show in the figure below, located in a flat suburban area with pedestrian demands that approach average flow rates, compute the minimum green time for North-South pedestrian intervals (Gp). The yellow clearance plus all red interval is 5.0 seconds. Assume average walking speeds. There are no separate pedestrian signals at the interesection.

The minimum green time for North-South pedestrian intervals, Gp (seconds), is most nearly:

a. 22

b. 27

c. 29

d. 32

I'm attaching the pdf of the intersection.

lease: Thanks.

 

[bigray76]

rayray,

See the attached thread where we discussed the same problem you posted here prior to the last exam. Basically, the 2000 sample exam used the old reference hence the 2000 HCM doesn't have the equation.

http://engineerboards.com/index.php?showtopic=2861

-Ray

 

[rayray91]

Thanks for the link - it was helpful. What I'm getting out of that thread is that you can't solve the problem with the information given any other way than by that equation - which is no longer in the HCM.