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The critical flow ratios for a three-phase signal are found to be 0.30, 0.25, and 0.25. The total time lost in the cycle is 10 s. Pedestrian crossings at this junction are not significant. The respective green times (expressed in seconds and rounded off to nearest integer) for the three phases are
- (A) 34, 28, and 28
- (B) 40, 25, and 25
- (C) 40, 30, and 30
- (D) 50, 25, and 25
Correct answer: (A) 34, 28, and 28
Solution
The correct option is right because the green times are calculated based on the critical flow ratios and the total cycle time, ensuring that the proportions of green time allocated to each phase correspond to their respective flow ratios while accounting for the total time lost.
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