The following data were taken on five cars traversing a 1.6-km highway. Car Time (minutes) A 1.7 В 1.8 1.2 D 1.2 E 1.3 Determine the traffic density, in vehicles per km. Express your answer in 2 decimal places.

A researcher was observing traffic along one lane of a rural highway. During a 1 minute time interval, ten vehicles were observed travelling 65, 64, 71, 66, 58, 72, 69, 66, 55 and 62 mph. Estimate the average vehicle spacing (ft/veh). Provide your answer to the nearest integer.

The following travel times are measured for vehicles as they cross the highway 2.0 miles long. Calculate time average speed (TMS) and average speed space (SMS) for this data. Why is SMS always lower than TMS?

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 Q: d = 60t² Within the first one hour, the maximum space headway would be

Speedometer readings for a vehicle (in motion) at 4-second intervals are given in the table. t (sec) 0 4 8 12 16 20 24 v (ft/s) 0 5 17 31 39 38 28 Estimate the distance traveled by the vehicle during this 24-second period using L6, R6 and M3.L6 = R6=M3=