ITS

1. Commen Cycle Time
All Red Time
Amber Time
Effective Green
Phase 1
760 Cars per Hour
Phase 4
324 Cars per Hour
Phase 3
852 Cars per Hour
Phase 2
1048 Cars per Hour
Phase Traffic Volume
1
760
2
1048
3
852
4
324
Total
2984
180
2
3
160
No. of Lanes
2
2
2
1
sec.
sec.
sec.
sec.
Traffic / Lane
380
524
426
324
1654
Green Time Split
0.23
0.32
0.26
0.20
1
Effective Green Time
37
51
41
31
160
Que Length / veh.
13
25
17
17

2. Intersection (1)
Phase 1
1848 Cars per Hour
Intersection (2)
Phase 1
1600 Cars per Hour
Phase 2
440Cars per Hour
Phase 3
1164 Cars per Hour
Phase 2
1280 Cars per Hour
Phase 3
1276 Cars per Hour
Itersection (1)
All Red Time = 2 sec.
Amber Time = 3 sec.
Phase
1
2
3
Total
No. of
Lanes
Saturation Traffic Flow
per lane (car/hr)
Total Saturation Flow
(car/hr)
Actual Flow
(car/hr)
Flow Saturation Flow
Ratio
Green Time Split
Green Time (sec.)
Que Length / veh.
3
2
3
1800
1800
1800
5400
5400
3600
5400
14400
1848
440
1164
3452
0.34
0.12
0.22
0.68
0.50
0.18
0.32
1.00
28
10
18
56
22
6
13
Lost = (2+3)*3 = 15 sec.
1.5𝐿
1.5 (15)
𝐶° =
=
= 70.31 ≈ 70 𝑠𝑒𝑐. 𝐶𝑦𝑐𝑙𝑒 𝑇𝑖𝑚𝑒
1− 𝑌
1 − 0.68
𝐸𝑓𝑓𝑒𝑐𝑡𝑖𝑣𝑒 𝐺𝑟𝑒𝑒𝑛 𝑇𝑖𝑚𝑒 = 70 − 15 = 55 𝑠𝑒𝑐.
Phase 1 Green time =
Phase 2 Green time =
Phase 3 Green time =
Total Green time =
Cycle time =
27.67973856
9.885620915
17.43464052
56
56 + 15 = 71 sec.
take 28 sec.
take 10 sec.
take 18 sec.
sec.

3. Itersection (2)
All Red Time = 2 sec.
Amber Time = 3 sec.
Phase
1
2
3
Total
Lost =
No. of
Lanes
Saturation Traffic Flow
per lane (car/hr)
Total Saturation Flow
(car/hr)
Actual Flow
(car/hr)
Flow Saturation Flow
Ratio
Green Time Split
Green Time (sec.)
Que Length / veh.
3
3
2
1800
1800
1800
5400
5400
5400
3600
14400
1600
1280
1276
4156
0.30
0.24
0.35
0.89
0.33
0.27
0.40
1.00
17
19
20
56
14
6
13
(2+3)*3 = 15 sec.
1.5𝐿
1.5 (15)
𝐶° =
=
= 204.54 𝑇𝑎𝑘𝑒 70 𝑠𝑒𝑐. 𝐶𝑦𝑐𝑙𝑒 𝑇𝑖𝑚𝑒
1− 𝑌
1 − 0.89
𝐸𝑓𝑓𝑒𝑐𝑡𝑖𝑣𝑒 𝐺𝑟𝑒𝑒𝑛 𝑇𝑖𝑚𝑒 = 70 − 15 = 55 𝑠𝑒𝑐.
28 sec.
Inter. 1
71 sec.
𝐿
230 𝑚
=
= 28.75 𝑠𝑒𝑐. offset
𝑆
8
𝐿
𝑡 𝑖𝑑𝑒𝑎𝑙 = − QH − Loss
𝑆
230
=
− 14 ∗ 2 + 2 = 2.75 𝑠𝑒𝑐.
8
Phase 1 Green time =
Phase 2 Green time =
Phase 3 Green time =
Total Green time =
Cycle time =
16.2962963
13.03703704
19.49444444
56
56 + 15 = 71 sec.
𝑡 𝑖𝑑𝑒𝑎𝑙 =
17 sec.
Inter. 2
71 sec.
take 17 sec.
take 14 sec.
take 20 sec.
sec.