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Journal of applied research and technology
On-line version ISSN 2448-6736Print version ISSN 1665-6423
Abstract
NWOSU, Cajethan; ISIORHOVOJA, Akpevwe; OGBUKA, Cosmas and ANYAKA, Boniface. Density based auto traffic light control system with GSM based remote override for enugu metropolis. J. appl. res. technol [online]. 2020, vol.18, n.2, pp.51-61. Epub Aug 01, 2021. ISSN 2448-6736.
In this paper, a density based auto traffic light control system with GSM based remote override is designed and implemented to in particular, eliminate the usual conflicting authority between the green light for the motorists/pedestrians and emergency vehicles and in general reduce very long queues of vehicular traffics at the cross-road junctions in Enugu Metropolis. Three PIC 16F877A microcontrollers, one each specifically dedicated for intelligent allocation of right of way based on vehicle densities sensing, allotting of due passage duration time, and overriding feature for emergency cases, is proposed and implemented. The traffic override is either performed by the pressure switches for density detections or the GSM module for emergency cases at any given time. The GSM remote overriding authority may be vested only on the emergency vehicle operators to override the set timing of the traffic light control system in the event of emergencies to eliminate traffic logjams and possible fatalities.
Keywords : Density based traffic control; GSM remote override; microcontroller; emergency.