5. Design signal for the intersection shown in Figure 1. Assume no pedestrian activity. Assume amber time as 3s and all-red time as 1s for each phase. 750 820 850 765 335 ‒‒‒‒‒‒‒-- ‒‒‒‒‒‒‒‒‒ 250 Lane width = 3m Sat. flow rate: ΤΗ -1,800 pcuphgpl TH, RT1,650 pcuphgpl TH, LT-1,700 pcuphgpl ↓ tr Phase A Phase B

Please answer question 7

Traffic engineering ضننذ

Observers stationed at two sections XX and YY, 1000 ft apart on a highway, record the arrival times of four vehicles as shown in the table below. Vehicle Section XX Section YY A T0 T0 + 14.33 sec B T0 + 3.76 sec T0 + 18.14 sec C T0 + 7.94 sec T0 + 22.06 sec D T0 + 12.13 sec T0 + 27.87 sec If the total time of observation at XX was 20 sec, determine (a) the time mean speed, (b) the space mean speed, (c) the flow at section XX, and (d) the density on the highway