Remote override of traffic signal in
emergency
ABSTRACT
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. Traffic congestion is a severe problem in many major cities across
the world thus it is felt imperative to provide such facilities to important
vehicles.
Conventional traffic light system is based on fixed
time concept allotted to each side of the junction which cannot be varied as
per varying traffic density. Junction timings allotted are fixed. Sometimes higher
traffic density at one side of the junction demands longer green time as compared
to standard allotted 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 sensors used in this project are IR and photodiodes are in
line of sight configuration across the loads to detect the density at the
traffic signal. The density of the vehicles is measured in three zones i.e.,
low, medium, high based on which timings are allotted accordingly. The override
feature is activated by an on board RF transmitter operated from the emergency
vehicle.
Further the project can be enhanced by synchronizing
all the traffic junctions in the city by establishing a network among them. The
network can be wired or wireless. This synchronization will greatly help in
reducing traffic congestion.
BLOCK DIAGRAM
Photos just for reference:
video
for reference of working of project:
Download Project Abstract &PPT….
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