motion is in the wrong direction only positive motion detection from the first and then the second unit will set off the system while positives from the second then the first unit will not activate the barrier or signs because this order implies proper direction of travel the exact configuration of the system will depend upon the specific landscape of the roadway along with the average rate of speed and size of vehicles utilizing the roadway those of ordinary skill in the art will be able to position the herein described components in such a way that motion is detected when coming from the importer direction of travel and photographs are taken of license plates when a motorist fails to stop or collides with the barrier thus the present system provides a safe and easy to implement traffic control and safety system that reduces the likelihood of collisions on highway exit and entrance ramps as well as one way roads to this point the instant invention has been shown and described in what is considered to be the most practical and preferred embodiments it is recognized however that departures may be made within the scope of the invention and that obvious modifications will occur to a person skilled in the art with respect to the above description then it is to be realized that the optimum dimensional relationships for the parts of the invention to include variations in size materials shape form function and manner of operation assembly and use are deemed readily apparent and obvious to one skilled in the art and.