An intersection approach has three lanes, permitted left turns, and 6% left-turning volume with a through vehicle equivalent of 5.0 tvu/left turn. The saturation flow rate for through vehicles under prevailing conditions is 1,700 veh/hg/ln.
a. What is the left turn adjustment factor for the case described?
b. Determine the saturation flow rate and saturation headway for the approach, including the impact of left-turning vehicles.
c. If the approach in question has an effective green time of 45 seconds in a 75-second cycle, what is the capacity of the approach in veh/h?