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-1 I-2 I-3 I-4 I-5

I-1 I-2 I-3 I-4 I-5 Peak Hour Traffic Count

Bangi Kajang Toll I-1 I-2 I-3 I-4 I-5 Step 2

Step 3: Optimazation

 1 G=49 A=3 R all =2 I-1  2 G=9 A=3 R all =2  3 G=47 A=3 R all =2  1 G=78 A=3 R all =2 I-2  2 G=8 A=3 R all =2  3 G=19 A=3 R all =2  1 G=72 A=3 R all =2 I-3  2 G=13 A=3 R all =2  3 G=20 A=3 R all =2  1 G=72 A=3 R all =2 I-4  2 G=11 A=3 R all =2  3 G=22 A=3 R all =2 I-5  1 G=24 A=3 R all =2  2 G=21 A=3 R all =2  3 G=27 A=3 R all =2  4 G=28 A=3 R all =2

Step 4 Uncoordinated Signalised Intersection

Bandwidth Step 4 Coordinated signalised intersection, providing progressive flow

Step 4: calculation of offset

Figure 22 Offset Setting Step 4 Bangi Kajang Toll I-1 I-2 I-3 I-4 I-5  1=  2=  3= Cy/Time =120s 6  1=  2=  3= Cy/Time =120s 23  1=  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=  2=  3= Cy/Time =120s 47 Relative Offset = 24, Absolute Offset =23+24 = 47  1=  2=  3= Cy/Time =120s Relative Offset = 6, Absolute Offset =6-6 = 0  2=

TRAFFIC CONTROL CENTRE MPMP MPMP MPMP MPMP Smart Camera Microprocessor Fixed-point to fixed-point communications