1. KKKA6424
ASSIGNMENT 2
Group 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 ration
Bandar 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 seconds
Green 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 seconds
Actual Cycle Time
Total of amber and all red time = (3 + 1) x 4 = 16
Cycle time = 222 + 16 = 238 seconds