Traffic congestion and accidents caused by more than speeding vehicles have been a major cause for anxiety in societies due to their negative effects such as stress to commuters, release of more toxic fumes into the atmosphere, accidents and loss of productive hours.The enhancement of Traffic Light Controller utilizing ultrasonic sensor and microcontroller. The Paper is designed for structuring a thickness based dynamic traffic signal framework where the planning of signal will change as a result on detecting the traffic density at any road junction. This paper offers an move toward for handling traffic congestion and over speeding offenders. This system uses infrared sensors as counters to measure the traffic density in each lane. The infrared sensors are also for speed detection with a Bluetooth module and Bluetooth serial monitor. These sensors are interfaced with the traffic light through a micro controller. The signal timing changes automatically on sensing the traffic density at the junction. The microcontroller used in this project is ARDUINO. In instance of any vehicle in emergency condition or on the other hand in emergency like VVIPs, a SMS is send to Traffic Control Authority, who has the control of microcontroller empowers microcontroller. The implementation of the prototype design show that traffic control and speed detection using infrared sensors and Arduino Atmega 2560 give a better performance and the time taken to clear traffic at an intersection reduced significantly with 60% time saved