Question

pulu tu d e8htractor to balance the cut and fill between stations 10+00 and 15+00. Problem #2: The "T" intersection shown has Yellow Interval of 3 seconds. Lost time per phase is 5 seconds and saturation and peak hour flows are: Saturation Peak hour flow Lane Group a1 a2 b1 C1 C2 Phase Flow 1500 450 1850 | 450 350 392 A (SB) 575 B (NB) 32 Calculate the actual red times and the actual green times for each phase. Use peak hour factor of 0.95 Problem #3: Define capacity and Level of Service briefly.

Answer 1

At first we will determine the ratio of normal to saturation flow. Then we will determine the total loss. Then we will calculate the actual green time for all phases and actual red time.

10.26 992 dA 50,121 TAho 스 0,261.+0,121+0,31+0, 111.40.09) = 0,906 Losses(L): SIee/Phase Taral 1,SL5 Ldute de clonea above 1,5 x15 b.406 292.55 sec ~ 293 요ec 016) 2 -15) ec 0906

Ya d:12x29 37.93 290 σ-906 95.11 0.121 '。는 x(293-15) = 0,90b 34.43 =Yp (Co-L ) _02406.xt29)--15):23.928ee 盟、, ー293_ (80.+ 374 95 +37 +28)

Red time the eaah phase: 16AU Aetu ao green time fo几 phase a-kAll DA 03