Question

the following travels in seconds were measured for 6 vehicles traveling a roadway segment with a length of 988 ft: 17, 18, 21, 19, 17 and 18. the space meas speed in ft/sec is

Answer 1

Solution:- the values given in the question are as follows:

number of vehicles(n)=6

length of road segment(L)=988 ft

time in seconds individual vehicle 1 to 6 travel(OR, travel time in second all vhicle one to six) is 17, 18, 21, 19, 17, & 18

space mean speed(Vs)=?

calculation of space mean speed:

(Eq-1)

where, Vs=space mean speed

all values put in equation-1 and find the space mean speed(Vs)

Vs={(3.6*988*6)/(17+18+21+19+17+18)}

Vs=21340.8/110=194.0072 ft/s

space mean speed(Vs)=194 ft/s [Ans]