19 5 Traffic Engineering 5Th Edition Develop A

Question

19-5 Traffic Engineering 5th edition Develop a signal timing for intersection: N/S 30 ft (1 lane NB/ 1 lane SB) E/W 85 ft ( 3 lanes EB/ 3 lanes WB…with separate left turn lane on EB and WB approach)…

19-5 Traffic Engineering 5th edition Develop a signal timing for
intersection: N/S 30 ft (1 lane NB/ 1 lane SB) E/W 85 ft ( 3 lanes
EB/ 3 lanes WB…with separate left turn lane on EB and WB
approach) Veh/hr EB: Left – 200, Through – 800, Right 120 WB: Left
– 160, Through – 1050, right – 100 NB: Left – 10, Through – 420,
right – 10 SB: Left – 12, Through 400, right – 8 PHF = .92 Level
Terrain Target v/c ratio = .95 Moderate pedestrian activity Avg
approach speeds : 30 mph N-S 40 mph E-W Crosswalk widths = 10 ft
Crosswalk setback = 2 ft Vehicle deceleration (a) = 10 ft/s^2
Driver reaction time (t) = 1 s Pedestrian walking speed = 3.5 ft/s
length of typical vehicle = 18 ft l1 = e = 2 s

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