GATE CE 2022 Set 2 — Question 44
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Transportation Engineering → Traffic Studies & Flow → Fundamental Flow Relationships
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Question
A single-lane highway has a traffic density of 40 vehicles/km. If the time-mean speed and space-mean speed are 40 kmph and 30 kmph, respectively, the average headway (in seconds) between the vehicles is
Correct answer
(A) 3.00
Solution
1.Traffic Flow ():
The relationship between flow (), density (), and space-mean speed () is:Given vehicles/km and kmph.
vehicles/hour.
2.Average Time Headway ():
Headway is the reciprocal of flow:hours/vehicle.
3.Conversion to seconds:
seconds.Note: Time-mean speed is not used in the calculation of flow or headway.Continue learning with Success Tracker
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