Urban Traffic Management System OPTIMIZATION OF URBAN TRAFFIC CONTROL SYSTEM Riza Atiq Abdullah bin O.K. Rahmat
Optimization of urban traffic control system
Jun 24, 2015
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http://www.eng.ukm.my/riza/UTMS/UrbanTMS.htm
http://www.eng.ukm.my/riza/UTMS/UrbanTMS.htm
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Urban Traffic Management System
OPTIMIZATION OF URBAN TRAFFIC CONTROL SYSTEM
Riza Atiq Abdullah bin O.K. Rahmat
Data collection
Optimum cycle time and green time split
Offset determination
Phasing sequences
Setting up signal controller on site
Traffic control expert system
Proposed automatic and intelligent urban traffic control
Peak hours classified traffic count at all approaches of the intersection under study.
16-hour traffic count at road links between intersections under this study
Travel time survey along the study arterial route
Queue length and delay survey at all approaches of the intersections under this study
Step 1
Bangi
Kajang Toll
I-1I-2I-3I-4I-5
I-1I-2I-3
I-4I-5
Peak Hour Traffic Count
Bangi
Kajang Toll
I-1I-2I-3I-4I-5
Step 2
Step 3: Optimazation
1G=49A=3Rall=2
I-1
2G=9A=3Rall=2
3G=47A=3Rall=2
1G=78A=3Rall=2
I-2
2G=8A=3Rall=2
3G=19A=3Rall=2
1G=72A=3Rall=2
I-3
2G=13A=3Rall=2
3G=20A=3Rall=2
1G=72A=3Rall=2
I-4
2G=11A=3Rall=2
3G=22A=3Rall=2
I-5
1G=24A=3Rall=2
2G=21A=3Rall=2
3G=27A=3Rall=2
4G=28A=3Rall=2
0
500
1000
1500
2000
2500
3000
0 100 200 300 400 500 600
Time (s)
Dis
tan
ce (
m)
Step 4
Uncoordinated Signalised Intersection
0
500
1000
1500
2000
2500
3000
0 100 200 300 400 500 600
Time (s)
Dis
tan
ce (
m)
Bandwidth
Step 4
Coordinated signalised intersection, providing progressive flow
Microsoft Excel Worksheet
Step 4: calculation of offset
Figure 22 Offset Setting
Step 4Bangi
Kajang Toll
I-1I-2I-3I-4I-5
1=78+2+3
2=8+2+3
0
3=19+2+3
Cy/Time=120s
6
1=72+2+3
2=13+2+3
03=
20+2+3
Cy/Time=120s
23
1=49+2+3
2=9+2+3
03=47+2+3
Cy/Time=120s
Relative Offset = 0, Absolute Offset =0
Relative Offset = -6, Absolute Offset =-6 Relative Offset = 23, Absolute Offset =0+23=23
1=24+2+3
2=21+2+3
03=
27+2+3
Cy/Time=120s
47
Relative Offset = 24, Absolute Offset =23+24 = 47
1=72+2+3
2=11+2+3
03=
22+2+3
Cy/Time=120s
Relative Offset = 6,Absolute Offset =6-6 = 0
2=28+2+3
TRAFFIC CONTROL CENTRE
MP
MP
MP
MP
Smart CameraMicroprocessor
Fixed-point to fixed-point communications
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