My idea is to implement
Automatic and Dynamic Traffic Control System.
I want to get the Vehicles density that were stopped along in all the roads in a particular junction. I want to get the binary information. For ex: If I get 1111s that means it has the highest traffic. If I get 0001s that means it has very less traffic.
Something like this. I am Ok if I get the information in any other format. I can redesign my implementation.
Based on the information I will change the timings for each road to clear.
I have implemented the logic using a simple flash software. But I need to implement this on board for the demo purpose. The sensor should cost low. Or any other circuit from which I can get information is also very helpful.