GATE CE 2019 Set 2 — Question 54
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Transportation Engineering → Intersections & Signals → Traffic Signals
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Question
The uniform arrival and uniform service rates observed on an approach road to a signalized intersection are and , respectively. For this signal, the red time is , the effective green time is , and the cycle length is . Assuming that initially there are no vehicles in the queue, the average delay per vehicle using the approach road during a cycle length (in , round off to 2 decimal places) is ________
Correct answer
12 to 13
Solution
The average delay per vehicle for a D/D/1 queuing system at a signalized intersection is given by:Where:
Substitute the values:Rounding to 2 decimal places, the average delay is .
Substitute the values:Rounding to 2 decimal places, the average delay is .
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