In this density based traffic light control system project we presented an micro controller based traffic density controller for solving issues in existing system.

Density Based Traffic Light Control System

Now a day’s traffic controlling in the urban areas is becoming very difficult due to enormous increase of automobiles. So in order to rectify this problem we presented a nice way to regulate the vehicles in crowd and a junction area which eliminates the involvement of humans in its operation.

In recent days the wireless technologies were changing the entire criteria of the appliance control system and they acting as an crucial prospect in automation, due to the implication of the micro controller in the controller strategies the intelligent and the commanding prompts done by the human were easily performed by these fabricated chips in very less period of time at high levels of accuracy.

Youtube video link to view circuit diagram block diagram

Proposed system:

The prototype in this project is a four junction setup; an infrared receiver is placed quite opposite to the infrared transmitter at the each junction nodes.

Interference between the transmitter and the receiver causes a interrupt signal which activated the relay and the micro controller acts whenever a considerable amount of the vehicles deposited at the respective nodes. The micro controller sends the abrupt timing signals to the traffic lights based on the varying intensities of the vehicles.

Download Density Based Traffic Light Control System Project Report


  • Traffic supervisor with high accuracy and reliability.
  • Regulates the dense traffic with is less operational speed.