Author : Asha M 1
Date of Publication :7th June 2016
Abstract: Traffic congestion is a severe problem in many major cities across the world, it is very imperative to provide priority to important vehicles. The project is designed to develop a density based dynamic traffic signal system having remote override facilities. During normal time the signal timing changes automatically on sensing the traffic density at the junction but in the event of any emergency vehicle like ambulance, fire brigade etc requiring priority are built in with RF remote control to override the set timing by providing instantaneous green signal in the desired direction while blocking the other lanes by red signal for some time. The proposed system using a microcontroller of 8051 family duly interfaced with sensors, changes the junction timing automatically to accommodate movement of vehicles smoothly avoiding unnecessary waiting time at the junction. The density of the vehicles is measured in three zones i.e., low, medium, high based on which timings are allotted accordingly
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