Design and development of enhanced road safety mechanism using smart roads and energy optimized solar street lights

Energy optimization is an important aspect in these days and it is applied in every domain. Technologies like smart street lighting and automated speed breakers are few which are applied in transportation domain. The work focus on two aspects. First one is to optimize the energy consumed by the street lights by introducing smart solar street lights. Second one is to enhance road safety and thus by optimizing the fuel consumption. To achieve the smart street lighting, a combined technology of piezo sensors and LDR sensor is proposed. The piezo sensors are used for detection of vehicle speed, which will actuate the speed breakers. The LED's are powered using batteries which are powered by a solar panel. A controller circuit is installed for the monitoring of charge in the batteries, to prevent from overcharging. The power output from the solar panel is given to the MOSFET which is used for lighting the LED. To actuate the speed breaker, a servo motor is paired with a rack and pinion, for the translation of rotatory motion to linear motion. To perform all this control functions, Arduino micro controller is used.