M Abubakar Rana
Traffic lights, also known as traffic signals, are positioned at road intersections, pedestrian crossings and other locations to control flow of traffic. Traffic lights were first installed in 1868 in London, and are now used all over the world. Traffic lights alternate the right of way accorded to road users by displaying lights of a standard colour (red, yellow/amber, and green) following a universal colour code.
Traffic signals have not been readjusted according to the needs of the current traffic flow. This is causing problems and accidents. At most spots, the green light stays only for a few seconds and vehicles back in line have to wait for the next green light for quite a while. Repeated attempts to cross the signals sometimes result in accidents. So it is the duty of authorities to keep a check and repair immediately faulty traffic signals.