When cities started replacing the old, incandescent bulbs of traffic lights with new LED arrays, it came with all kinds of wonderful upsides. LED arrays last much, much longer than bulbs, which ...

Janet Lane strains to bend and unload dishes from her dishwasher following a traffic accident in March that she blames on a traffic light near her home.

You’re going to like [Ivan’s] write-up for this LED computer status monitor. Of course he didn’t just show-and-tell the final product — if he had you’d be reading this… ...

As transportation crews replace incandescent light bulbs to the more energy-efficient LED lights, they have found they do not handle snow as well as before.

A blast of winter meant a busy day for city crews Thursday, as they sanded and salted huge swaths of Winnipeg including icy bridges. But now they have to clear snow off traffic signals, too.

British lighting technology firm Dialight is hoping a switch to low-carbon LED traffic lights across Europe and on cellphone masts will help it to drive revenues over the next few years.

New LED bulbs don't generate the same amount of heat the old incandescent bulbs did, so they don't melt the snow that builds up on traffic lights.

These traffic lights are designed so that the appropriately colored light is only visible by its intended traffic goers. A video showing a LED signal pole in a European town has recently surfaced.

At around 40 intersections in Chandigarh, where traffic lights are being upgraded to LED lights, their timers have not been functioning properly, according to residents; road safety experts say ...