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Driving is a very complex activity which requires the driver's full attention. Nowadays, the human factor is linked to the majority of accidents [1], and driver distraction is a principal cause. The objective of this project was to create an active safety system for testing with somnolent drivers in real driving conditions, and so it was necessary to create a system which allowed the driver to handle the car without interfering with driving. The system we developed is composed of a GPS which checks the position and velocity of the vehicle continuously, a robot which decides with GPS data if the vehicle is being properly driven and an actuator over the brakes to stop the car if necessary. The robot takes control of the vehicle if it is not being driven correctly in order to prevent a possible accident. Moreover, an environment closely representative of today's roads was created to make the driving experience more real.