Assignment 2 Muhammad bin Ramlan,Suzilawatie bt Abdul Ghani

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  • 1. KKKA6424ASSIGNMENT 2Group Member : Muhammad Bin Ramlan P 57600 Suzilawatie Bt Abdul Ghani P 60832 Ke BBB Total: 579 Total: 1539 975 42 378 186 405 132 Ke Kajang Ke Bangi Lama 702 222 108 39 102 489 Total: 630 Total: 1032 Ke UKM Traffic Flows in 1 hour Total Phase Car Bus M/cycle (pcu/hr)Bandar Baru Bangi 1093 15 431 1,286 Kajang 733 10 289 862 UKM 447 6 176 526 Bangi Lama 411 6 162 484 pcu unit 1 2.75 0.35 Number of saturation flow Flow / Saturation Actual flows Green time phase per lane flow (pcu/hr) (pcu/hr) saturation split lanes (pcu/hr) flow rationBandar Baru Bangi 2 1800 3600 1,286 0.36 0.407 Kajang 2 1800 3600 862 0.24 0.273 UKM 2 1800 3600 526 0.15 0.167 Bangi Lama 2 1800 3600 484 0.13 0.153 Jumlah, Y 0.88 1.000
  • 2. Cycle time 1.5 L + 5 Co = 1-Y L=4*4= 16 seconds [lost time per phase 4 seconds] Co = ( 1.5 x 16 + 5 ) / ( 1 - 0.88 ) = 236.30 Take Co = 237 secondsGreen Time Split Effective Green Time = 237 - L = 221 seconds Phase 1 Green Time 237 x 0.407 = 89.98 = 90 seconds Phase 2 Green Time 237 x 0.273 = 60.34 = 61 seconds Phase 3 Green Time 237 x 0.167 = 36.83 = 37 seconds Phase 4 Green Time 237 x 0.153 = 33.85 = 34 seconds Take amber time = 3 seconds Take all red time = 1 seconds Green time total = 222 secondsActual Cycle Time Total of amber and all red time = (3 + 1) x 4 = 16 Cycle time = 222 + 16 = 238 seconds