HOUSTON (CW39) – The sight of blue police lights is a common yet powerful symbol in modern society. These lights are not only ...

Question: I’m wondering about a light that seems to only be ... The blue lights are wired into the traffic signal system and turn on when the traffic light changes to red. 2.

A new system of flashing red ... police car approaches, sometimes only to realize later the car was not on an emergency mission when it stopped at a red traffic signal. “If the way the red ...