The document discusses Area Traffic Control Systems (ATCS) which are adaptive traffic light systems that optimize traffic flow based on real-time vehicle detection data. It notes that only two cities in India, New Delhi and Pune, have implemented ATCS to replace the less effective fixed-time traffic light controllers. The ATCS developed by C-DAC for Pune controls 38 intersections and led to reductions in travel times, delays, and fuel consumption according to studies. Key challenges for ATCS in India include mixed traffic conditions and lack of dedicated lanes.

1. Area Traffic Control System implementation at Pune by V. Muralidharan Additional Director, Head CIG C-DAC, Thiruvananthapuram 695033 Email: murali@cdactvm.in

7. Traffic Signal Controller

8. Vehicle Detection (Balgandharv Chowk, Pune) Stop line Loop for Straight going traffic Exit Loop for Right turning traffic

10. Central Control Station (CCS)

12. Homogeneous, lane following traffic Typical flow on Indian Roads (A scene from Pune)

14. On Street Parking A typical parking pattern seen on Laxmi Road

15. Typical corridors ( Laxmi Road, Pune)

17. C-DAC ATCS Model Central Control Station (CCS) Stop line Detector Traffic Signal Controller Signal Lights Average Occupancy Signal Timings (Prediction) Signal Control Feedback (Signal Timings executed against the prediction)

19. CoSiCoSt Network Model New Timings & Preferences Demand Intersection Controller Split Optimizer Split time modifier Translation Plan Detector Stage Timing, Stage Saturation, Speed info Performance Index / Offset Route Selection & Offset Optimizer Current Timings Preferences & Observations Area Optimizer Weights & Bias

20. Scalability Vehicle Actuated Traffic Signal Controller / Urban Traffic Controller System (UTCS) Vehicle Actuated Corridor Control ATCS Camera SCMS VMS SCMS – Service Crew Monitoring System VMS – Variable Message Signs

21. ArTIC #1 ArTIC #2 ArTIC #3 ArTIC #38 Camera Camera CCR Detector Detector Detector Detector GSM NETWORK SCMS SCMS Variable Message Sign Variable Message Sign Leased line Network (Data, Control & Video) Pune ATCS Configuration

22. Project Area in Pune 38 Intersections Karve Road JM Road Laxmi Road Sivaji Road Tilak Road Bajirao Road Central Control Room ATCS Pune Project Area

23. Project Area in Pune 38 Intersections Karve Road JM Road Laxmi Road Sivaji Road Tilak Road Bajirao Road Central Control Room

24. Variable Message Sign (Swargate, Pune)

25. Service Crew Monitoring System

26. Photographs from Surveillance Camera Alka Talkies Junction, Pune

27. Corridor performance report

28. Traffic Flow

29. Time space diagram

39. Thank You