The system includes:

• A plurality of probe vehicles generating time stamps
• A traffic controller that couples with point-to-point detectors
• The point-to-point detectors are sensors installed near the intersection of roads, and there is at least one detector located near each road connected to the intersection.
• The point-to-point detectors records and generate time stamps for vehicles as the probe vehicles pass the detectors
• Further the Traffic Controller is capable of :

1. Receiving Time Stamps
2. Calculating Vehicle Crossing Time
3. Determining Average Queue Forming Shockwave (QFS) Speed
4. Estimating Total Intersection Delay
5. Optimizing Signal Timing

• The invention further discloses a  method involving  determining the time taken for vehicles to cross the intersection, calculating the average speed, estimating total intersection delay, and optimizing signal timings to minimize delays.
• The composite traffic flow parameters include various data related to vehicle classes, composite free flow speed and composite queue discharge speeds, and jam density, saturation flow rate, free flow time etc.