At some intersections the traffic signals have sensors to detect vehicles, and the traffic signal will only change if A vehicle facing the red traffic light stops at the stop line. A vehicle facing the red traffic light stops 20 feet back from the stop line. At least two vehicles have stopped at the red traffic light.

Some of the things osha does to carry out its mission include; developing job safety and health standards, and enforcing them through worksite inspections, maintaining a reporting and recordkeeping system to keep track of job-related injuries and illnesses and providing programs to increase knowledge about occupational safety and health.