Author & Affiliation:
Department of Computer Science and Engineering, College of Engineering and Technology (CEAT), IUBAT- International University of Business Agriculture and Technology, Bangladesh, Dhaka, Bangladesh
Department of Mathematical Sciences, Abubakar Tafawa Balewa University (ATBU), Bauchi, Nigeria
In today’s world, cities have become crowded with a lot of vehicles, which have lead to congestions on the roads. The time spent in traffic jams has greatly increased and this has become not only an annoying problem but also poses a very difficult problem to emergency service vehicles like the ambulances, fire services, etc. which cannot get to their destinations in time. They are to wait for the roads to be cleared and by the time they get to their destinations, it might just be too late to do anything useful. This study was therefore aimed at solving this problem by designing a means of allowing emergency service vehicles to be able to control the traffic signal so as to reduce the time spent in road junctions by changing the traffic light signal from red to green along the lanes. The circuitry of this work comprises digital IC components like timers and operational amplifiers. It also has other components like diodes, resistors, capacitors, transformers,
transistors, LEDs and microphone. The entire system was initially constructed on a bread board and then transferred to a vero board. It consisted of four units: the power supply, the logic control, the detection and the traffic light display units. At each stage of the circuit construction, tests were carried out to verify that they were working and giving the expected output.