Video Newsroom > NJTPA News > Video > Street Smart NJ Stopping Distance Demonstration Print Street Smart NJ Stopping Distance Demonstration The Street Smart NJ pedestrian safety pilot program kicked off in Long Beach Island on June 18 with a live demonstration of the potentially lethal effects of speeding involving a moving car and a dummy. At 25 mph, the vehicle stops in time. At 40 mph, the car slams into the model with devastating force.