Vehicle Density Based Traffic Light Signaling System

Introduction to Vehicle Density Based Traffic Light Signaling System Project:

Traffic management is one subject on which every year millions of dollars are spent across the world to provide better traffic management. Especially in the developed countries such as India there is huge scope for a better traffic management.

Presently traffic is managed manually at smaller junctions and by using the signals lights (Red – Green – Yellow) at major junctions. This system will not serve for effective using of road space in major cities. The latest technology that can be employed is by using signal lights which function based on density of vehicles on the roads.

In this system all the timings of signal lights are fed to a computer basically termed as base station and through this station all the signals are sent to microcontrollers (89C51) placed on signal lights to operate accordingly. Sensors are connected to microcontrollers on every signal location which senses/reads the density of traffic in that particular road and sends the information to base station. Hence a bi-directional information flow system should be in place between signal lights and base station. Based on this information on density of traffic the signal light timings are automatically changed and also if needed traffic will be diverted to roads where traffic is less.

For sensing the traffic we can either use laser sensors or inductive type metal sensors. For transiting data we can use 433 Mhz carrier frequency. And use RS232 protocol for microcontroller (895C1) communication.

By deploying this model in real time we can save time being wasted in standing at signal, petro / fuel consumption can be reduced and make traffic management accurate.

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