A simple four-leg intersection needs a 2-phase fixed-time signal. The critical flows in the N-S and E-w directions are 600 and 400 veh/hr, respectively, with a 0.95 peak-hour factor. Saturation flow is 1800 veh/hr and the total lost time per phase is observed to be 5.2 seconds. Amber time and all-red time are 4 and 1 seconds, respectively. Assume that the intersection should operate at 90% of its capactiy. Determine the cycle length and distributuion of green (green splits). Calculate also effective green times.
Hint: Round the cycle length to the next higher 5-sec increment (e.g. 86->90); then round splits to the next integer values