## Question

###### 2. Determine the minimum cycle length for the intersection with the volumes shown on the table...

2. Determine the minimum cycle length for the intersection with the volumes shown on the table below. The intersection is designed to have the following three phases: Phase A for left-turn movements from the EB and WB approaches; Phase B for the through and right movements from the EB and WB approaches; Phase C serving all movements for the NB and SB approaches. EB approach WB approach N B approach SB approach LT RLT RL TRL TR 110 500 200 100 550220 120 450 180 120 400 250 Assume each intersection approach has 2 lanes, one for left-turning vehicles and one for through and right-turning vehicles. The saturation discharge headway is 2.10 seconds.

## Answers

Answer: EB of reach WB oncoch. N ach e inen 110 500 300 m 550 350 130 0 1 150 2.0 phas it No 100 phar a: Jao 10 Scanned with CamScannerphose 3: 10 to 120 180 Critical volume for 3 phases : phase i phage 2 phoye 3 : 110 550 : 450 Therefde, total critical volume : 110 + 550 + 450 v = 1110 uph (vchichels pean hour) satioation flow rate for intersection, 5: = 3600 s where si = saturation flow sate CS CamScanner = satuation herd wayS : 2.1 Seconds Sy 3600 : 1714.28 vph now, wing website no euntibn. Co . 1.5645 where, coa cycle length T ipolal lost time (ayume o in this case) no lost time given minimum Cycle lime emin s 7714.28 Secs 1 - 1110 c orto sees SECS 1 -0.64750 secs : ses secs 0.3525 min : 14.184 sec Scanned withcmih 15 sec CamScanner

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