Traffic-engineering Questions Set 5:
The coefficient of longitudinal friction when the speed is 50 km/h is
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The minimum value of 15-minute peak hour factor on a section of a road is
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What does OSD stand for?
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For a road with camber of 3% and the design speed of 80 kmph, the minimum radius of the curve beyond which no superelevation required
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Bituminous concrete is a mix comprising of
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A vehicle negotiates a transition curve with uniform speed v. If the radius of the horizontal curve and the allowable jerk are R and J, respectively, the minimum length of the transition curve is
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The perception reaction time for a vehicle travelling at 90 kmph, given the coefficient of longitudinal friction of 0.35 and the stopping sight distance of 170 m (assume g = 9.81
m/s2), is seconds
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A road is having a horizontal curve for 400 m radius on which a super elevation of 0.07 is provided. The coefficient of lateral friction mobilized on the curve when a vehicle is travelling at 100 kmph is
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24-h traffic count at a road section was observed to be 1000 vehicles on a Tuesday in the month of July. If daily adjustment factor for Tuesday is 1.121 and monthly adjustment factor for July is 0.913, the Annual Average Daily Traffic (in vehicles/day, round off to the nearest integer) is ________.
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Two cars P and Q are moving in a racing track continuously for two hour. Assume that no other vehicles are using the track during this time. The expressions relating the distance travelled d (in km) and time t (in hour) for both the vehicles are given as
P:d = 60t O:d = 60t ^ 2
Within the first one hour, the maximum space headway would be
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