Traffic-engineering Questions Set 11:
A circular curve of radius R connects two straights with a deflection angle of 60°. The
tangent length is
Solution:
The average spacing between vehicles in a traffic stream is 50 m, then the density (in vehicles/km, in integer) of the stream is ____.
Solution:
In compacted cylindrical bituminous mix VMA 15% (void mineral aggregate) Vy= 4.5% (air void). The magnitude of VFB (void filled bituminous) is
Solution:
Relationship between traffic speed and density is described using a negatively sloped straight line. If v, is the free-flow speed, then the speed at which the maximum flow occurs
Solution:
The factors on which the overtaking sight distance depends are
Solution:
The lost time due to starting delay on a traffic signal approach is 4 seconds, the actual green time is 28 seconds, and the amber time is 4 seconds. What is the effective green time?
Solution:
In a three-phase signal system design for a four-leg intersection, the critical flow ratios for each phase are 0.18, 0.32, and 0.22. The total loss time in each of the phases is 2 sec. As per websters formula, the optimal cycle length (in sec) is
Solution:
A bitumen sample has been graded as VG30 as per IS: 73-2013. The 30 in the grade
means that
Solution:
A car is moving at a speed of 72 kmph on a road having 2% upward gradient. The driver applies brakes when he sees an obstruction. If his reaction time is 1.5 sec, assuming that the coefficient of friction between the pavement and the tyre as 0.15, calculate the distance traversed before the car finally stops.
Solution:
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