
Some traffic lights in Florida have recently been updated with a small but important feature that might go unnoticed by many—a blue light that turns on when the signal changes to red. This new system isn’t just decorative; it has a very clear purpose: to help police officers catch drivers who run red lights. The initiative is already being rolled out and is part of the state’s efforts to reduce traffic accidents and enforce road rules more efficiently—even from a distance.
How Does the Blue Light Work?
Unlike the traditional red, yellow, and green lights, the blue light isn’t directed at approaching drivers. Instead, it illuminates the intersection from the side, facing perpendicular to the traffic flow.
When the traffic light turns red in one direction, the blue light instantly switches on. This allows officers positioned further away—or in blind spots—to detect red-light violations without needing a direct line of sight to the signal.
Not only does this make law enforcement more effective, but it also serves as a deterrent. Many drivers may think twice before running a red light, knowing it’s now easier for authorities to spot them.
What Happens If You Run a Red Light?
A study by the Minnesota Department of Transportation, cited by Jalopnik, showed that blue lights helped reduce accidents caused by running red lights. The success of the system has led other states—including Colorado, South Dakota, and Kansas—to adopt similar strategies.
In Florida, running a red light can cost you up to $158, and that amount can increase to $500 with additional charges. If a police officer stops you in person, the fine exceeds $264 and also adds penalty points to your driver’s license.



