Density based traffic signal system using Arduino Uno

Present era controlling traffic became very arduous because of increase in the automobiles such as cars, bikes, etc. Due to this, there is a longer time delays in the signalling systems. In order to overcome this problem, we have designed the density based traffic signal with a delay of 1000ms to control the traffic based on density at the crossings or four-side lane or roads system using Arduino Uno ATMega 328P.