The detailed layout of the phasing system and the intersection geometry used for the geometric and
traffic characteristics of four legs signalized intersection are shown in table 3. The saturation flow of the intersection is shown in table 4.
The Detailed Layout Of The Phasing System And The Intersection Geometry Used For The Geometric And Traffic Characteristi 1 (36.64 KiB) Viewed 12 times
I. Design a suitable signal phasing system and phase lengths for the intersection using the Webster method. II. Discuss the effect of increasing saturation flow rates by 10% higher on the cycle length. Table 3: The geometric and traffic characteristics of the intersection Assume the following saturation flows: North South East West Approach (Width) (56m) (56 m) (68m) (68m) Peak hour approach volumes Left turn 133 73 168 134 Through movement 420 373 563 516 Right turn 140 135 169 178 Conflicting pedestrian 900 1200 1200 900 volumes PHF 0.95 0.95 0.95 0.95 Table 4: The saturation flow of the intersection Through lanes Through and Left lanes Left and Left, though, saturation right lanes Veh/in/h through and right flow rates % Veh/In/h Veh/In/h lanes Veh/In/h lanes Veh/In/h 1100 1600 1400 1000 1200 10
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