If you ever wish that you could rig the traffic lights to be green during your commute, experts say it may not be that hard to do.
According to a study by the University of Michigan, traffic lights across the United States are dangerously easy to hack.
Under the supervision of transportation officials, computer researchers were able to change traffic lights in an undisclosed Michigan city in May.
Authorities say the researchers just used a laptop in their truck.
The name of the manufacturer who created the lights was not named in the study.
However, CNNMoney has independently confirmed the lights and controllers are made by Econolite, one of the largest makers of lights, cameras and traffic management systems in North America.
Econolite’s traffic lights are used in 100,000 U.S. and Canadian intersections.
At this point, it is not known if all of those systems are susceptible to hacking.
The company did not respond to a request for comment.