Introduction to Transport. Lecture 4 : Traffic Signal. Critical Lane & Time Budget. Critical Lane. This concept is used for the allocation of the 3600 seconds in the hour to lost time and to productive movement.
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Lecture 4:Traffic Signal
(volume-to-capacity) V/C ratio:
3 + 2 ERT = 17 or ERT = 7
In this situation, 1 RT vehicle is equivalent to 7 TH vehicles in terms of headway.
Example: consider an approach with 10% RT, two lanes, permitted RT phasing, a RT equivalency factor of 5, and an ideal saturation headway of 2 sec per veh. Determine