The main objective of our paperInvention is to work on density-based traffic control and smart lane changesover for Ambulance. From past many years, we all observed that there is a hefty traffic happening on roads, which influences the progression ofambulances. Nowadays managing or controlling the traffic in smart cities isgetting complicated due to rapid enhancement of Automobiles. Tofigure out this challenge we came up with the invention of “Traffic Management System for Smart Cities”. Key components included in the work are PIC Microcontroller, DC motors and IR sensors. We will be using IR sensors in Four Intersection roads which detect the nature of the traffic. All these IR sensors are connected to the PIC Microcontroller.If the ambulance got struck because of the traffic, RF receiver present at the signal on receiving the RF signal sent from the emergency vehicle and sendsthe data to the control unit. After signal received from the RF transmitter, the road divider starts moving right side a bit far for free pathof ambulance. After that, the divider comes to the original path. If These rules were followed, this will be the exact solution for the ambulance free path. This paper will regulate the traffic signals and saves the crucial time needed for the ambulance andbehaves like a “life saver project”.

Keywords : PIC Microcontroller, Traffic signals, IR sensors, Road Divider.