Highway Enginee...

Consider the following observation on a road:

The time mean speed and space mean speed from the above data will be respectively

Match List I (Types of Mix) with List II (Mix characters) and select the correct code

For 5-minute sub hours, the theoretical possible value of Peak hour factor (PHF₅), will be _______. Assuming hourly traffic volume as 1200 and maximum 5 min traffic as 200.

Shape tests were carried on aggregates to determine the suitability for a pavement. The specific gravity of aggregates is 2.7. A one-litre weightless cylinder, when filled completely with aggregate, weighs 1.6 kg. The angularity number of the aggregate is

A study of traffic flow at a particular location resulted in a calibrated speed-density relationship as follows

V = 47.5 (1 – 0.32 k)

For the above relationship, the maximum flow will be

The average normal flow of traffic on cross roads A and B during design period are 400 and 250 PCU per hour; the saturation flow values on these roads are estimated as 1250 and 1000 PCU per hour respectively. The all-red time required for pedestrian crossing is 12 sec. The effective green time (in seconds) of two-phase traffic signal with pedestrian crossing by Webster’s method for phase A and phase B respectively are ________

While travelling along and against the traffic stream, a moving observer measured the relative flows as 60 vehicle/hr and 180 vehicle/hr respectively. The average speed of the moving observer while travelling along and against the stream are 18 km/hr and 24 km/hr respectively. The density of traffic stream (expressed in vehicle/km) is -