f) If the saturation headway at a given signalized approach is observed to be 2.3 sec/vehicle, the capacity of a 3-lane approach with a cycle length of 90 sec. and a 0.60 green ratio (effective green to cycle length) is 939 vph. False True
g) If the demand at a given signalized approach is 1500 vph and the degree of saturation is 1.19 then the capacity of the same approach is 1260 vph True False
h) A mall shoppers-only parking lot is being designed. Assume a shopper will on average spend 3 hours to complete their shopping needs. It is expected that on average, 18000
shoppers will visit the mall during its operation hours. The estimated parking demand in space vehicle-hours is 6000.
False True
i) Based on the Signalized Intersection Analysis results (shown in the next page), the LOS for the westbound lane group is C
False True
j) Based on the Signalized Intersection Analysis results (shown in the next page), there would be two critical flow ratios for the Eastbound approach False True
k) Based on the Signalized Intersection Analysis results (shown in the next page), if the volume (demand) in the westbound approach is 980 vph then the volume to capacity ratio (v/c) for the same (westbound) approach is 0.956
True False