The aim of this project is to create a system that controls traffic signals and switch them on when an emergency vehicle (fire truck, ambulance, or police car) request that from the sys- tem. To clarify, the driver of the emergency vehicle should assign the destination that he/she should reach, and then, the request will be activated, so all the traffic signals on the way will be turned to green light until he/she reaches the final destination. Consequently, we will reduce the waiting time of the emergency, and prevent any accident could be happened if other cars cross the red signals to let the emergency vehicle go while the signal is red! Why not make it, A SMART CITY?