may occur via wireless signals such as cellular signals satellite or may occur via a landline telephone connection or coaxial digital cable connection in this way authorities are notified that an accident has occurred or that a driver is in distress or inebriated and is incapable of retreating from the area in a preferred embodiment the motion detection unit also identifies retreat of the car from the one way road once the car moves backward past the motion detection unit the barrier is signaled to initiate retraction this system reset functionality reduces the amount of time that law abiding motorists are prevented from traveling down the road because the barrier is lowered once the threat of collision has passed alternatively the system may be manually reset by proper authorities via an interaction with input on one or both of the motion detection and camera unit a view of the components of an exemplary camera unit are shown in fig4 a the camera unit 200 has a digital camera 260 a central processing unit 280 a memory 290 a storage media 230 a communications means such as a transceiver 250 and optionally an input means 240 for interacting with eh traffic safety system these components are stored within the camera unit housing 220 and are powered by a battery 270 or in ground electrical connection activation signals are received into memory and processed by the cpu which then initiates photographing images taken with the digital camera are stored on the storage media and may be transferred via the communication link as needed by way of example the images may be immediately.