Question

265 so 50 Target vic ratio 24 n Speed limits 24 n 1o 25 .Determine if protected left turn phase is required . Determine number of phases . Determine cycle length applying Webster Method. Allowable minimum and maximum cycle length are 60 secs and 180 secs respectively .Assume yellow time of 3 secs and all red time of 2 secs for all phases. Saturation flow rate for through lane and left turn lane are 1700 veh/hr/n and 1200 veh/hr/In respectively. Lost time per phase is 4 secs Develoo the final sianal timine e

Answer 1

1. 
   2re 221+28 %-乏瓮 (1-0m) /4丶 122.GY taca |つ /2 3as 6-4チ 55. 53 sa
   
   s (122-64-4)0.25, sg./0 μ9s eack phae Co 123 se リ 63 110