Proposed solution and approach

To track the traffic signal, raspberry pi device will be deployed with camera and Wi-Fi hardware. Camera will recognise the traffic signal pattern and send the data to the cloud server through Wi-Fi. Through a web application, the user of the device can view the traffic light details such as video streaming of the camera so the position of the device can be adjusted to make it able to see the traffic lights clearly.

The figure below is a flow diagram of the proposal solution.