Published Paper Details:

The problem of traffic congestion is a phenomenon that has made a huge contribution to the country's transportation system. It creates uncertainty particularly when there are emergency cases at junctions of traffic signals which are often busy with a lot of vehicles. To solve those problems, a traffic light controller system is designed. This system was designed to work while receiving signal from emergency vehicles based on radio frequency (RF) transmission and used the PIC AT89C51 microcontroller to reset the sequence to the normal sequence before activating the emergency mode. This device would mitigate collisions that frequently occur at the intersections of traffic light due to other vehicles needing to huddle to provide a special path to emergency vehicles. As a result, this project has successfully analyzed and implemented wireless communication; the radio frequency (RF) transmission in emergency vehicle traffic light control system. This project's system uses the 434 MHz frequency and works with traffic light sequence mode as emergency vehicles move through an intersection and reset the sequence back to normal sequence before the emergency mode is triggered. This test device can be enhanced in the future by monitoring the real traffic situation, in turn improving existing traffic light system technology.