Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's actually a good idea.

Traffic engineers are quietly working on a radical idea: adding a white signal to the familiar red, yellow, and green.

The NEXTORCH UT61 Tactical Helmet Signal Light is a mission-ready helmet light engineered for low-light navigation, tactical signaling, and infrared operations. Equipped with five color light sources ...

ASSOCIATION STUDY. AND IF YOU DON’T OBEY THE CROSSWALK, YOU’LL GET A TICKET. ALBUQUERQUE IS ADDING NEW TRAFFIC SIGNALS TO MAKE CROSSING THE STREET SAFER. BUT THE SIGNALS HAVE DIFFERENT RULES THAN ...

Q: What are the rules about crosswalks at intersections with signal lights? Many people think that if they are in a crosswalk and the light is green for the automobile, they can still cross. Please ...

CORPUS CHRISTI, Texas — Staples Street between McArdle and Holly is where the traffic signal lights are now synchronized. It is part of a city test to see if it can get all of the lights to turn green ...

The most important thing to know about Fresnel lenses, before casually attempting to drop them into conversation, has to do with phonetics: "Fresnel" is pronounced "Fruh-NEL." If the silent "S" makes ...