Answer:
786.01
Explanation:
Calculate the saturation flow rate by using the following equation
S = 3600/h, where h is the saturation headway
S = 3600/2.48 = 1452 veh/hg
<u>Calculate the effective green time</u>
G(i) = G(i) + Y(i) – t(Li), where G(i) is the actual green time for movement, Y(i) is the sum of yellow and all red intervals for movement, and t(Li), is the total lost time for movement
G(i) = 40, Y(i) = 4, t(Li) = 2.3 + 1.1 = 3.4
G(i) = 40 + 4 – 3.4 = 40.6
<u>Calculate the capacity of an intersection approach by using the following equation</u>
C(i) = s(i) [g(i)/C], where s(i) the saturation flow rate, g(i) is the effective green time, and C is the cycle length
s(i) = 1452, g(i) = 40.6, C = 75
C(i) = 1452 x (40.6/75) = 786.01 veh/h/ln
The capacity of intersection approach is 786.01