An intersection approach has three lanes, permitted left turns, 8% left turns with a through vehicle equivalent of 4.50, and a saturation flow rate of 1750 vphgpl for through vehicles under prevailing conditions. (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 75-second cycle length, what is the capacity of the approach in vph?