Consider the geometric and traffic characteristics shown below Approach Width Peak hour Approach Volumes Left Turn Through Movement Right Turn Conflicting Pedestrian Volumes PHF Assume the following saturation flows Through lanes Through right lanes Left lanes Left through lanes Left through right lanes North 56 ft 173 460 130 900 0 95 1 600 veh h In 1 400 veh h In 1 000 veh h In 1 200 veh h In 1 100 veh h In S S South 56 ft S 113 413 125 1 200 0 95 East 68 ft 208 603 159 1 200 0 95 Determine a suitable signal phasing system and phase lengths in s for the intersection using the Webster method Enter t sum of green and yellow times for each phase and afterwards the total cycle length Ensure that enough green time is prov to allow for pedestrian movement Assume each of the four approaches is divided into a left lane a through lane and a thro right lane Assume the lost time due to acceleration and deceleration during each phase is 3 5 seconds and the time lost du the red clearance interval between each phase is 1 5 seconds Also assume the curb to curb distance is 56 ft when pedestr travel during the N S phases and 68 ft when pedestrians travel during the E W phases Finally assume pedestrians walk at speed of 3 5 ft s through a crosswalk of width 10 ft Phase 1 N S left turn Phase 2 N S through through right turn Phase 3 E W left turn West 68 ft 174 556 168 900 0 95