Question

A four-lane divided multilane highway (two lanes in each direction) in rolling terrain has five access points per mile and 11-ft lanes with a 4-ft shoulder on the right side and 2-ft shoulder on the left. The peak-hour factor is 0.84 and the traffic stream has a heavy vehicle adjustment factor of 0.847. If the analysis flow rate is 1250 pc/h/ln, what is the peak-hour volume

Answer 1

1779 veh/h

Step-by-step explanation:

Given :

Peak hour factor, PHF = 0.84

Heavy vehicle adjustment factor,
`$F_(HV)$` = 0.847

Analysis flow rate,
`v_p` = 1250 pc/h/ln

We know that,

Analysis flow rate,
`$v_p=(v)/((PHF)(N)(F_g)(F_(HV)))$`

Here, v = peak hour volume

`$F_g$` = grade adjustment factor which is 0.99 for rolling terrain.

> 1200 pc/h/ln

`$v_p=(v)/((PHF)(N)(F_g)(F_(HV)))$`

`$1250=(v)/((0.84)(2)(1)(0.847))$`

v = 1779 veh/h

Therefore, the peak hour volume, v = 1779 veh/h