LED signal lights generally carry a price tag several times higher than incandescent traffic signal bulbs. However, that hasn't stopped many cities from replacing their incandescent lights with LED ...

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...

Four signal replacement projects designed to create more efficient traffic flow and improve pedestrian safety at busy intersections continue moving forward in the Midvalley. Blakely and Olyphant ...

If you've ever wondered how traffic lights work and how they can detect your car, you've probably also been curious about those small blue lights mounted above the signals themselves. These blue ...

Those blue lights above traffic signals aren’t decorative. Here’s what they’re for and why more cities are installing them. Blue confirmation lights help police spot and enforce red-light violations ...

Add Yahoo as a preferred source to see more of our stories on Google. The City of Pittsburgh’s Department of Mobility and Infrastructure has been awarded an $805,533 grant to replace and modernize ...

HARRISBURG, Pa. — State funding will go towards traffic signal upgrades in the Lehigh Valley and Berks County. 57 municipalities across the Commonwealth will receive nearly $30 million through the ...

PITTSBURGH — The City of Pittsburgh’s Department of Mobility and Infrastructure has been awarded an $805,533 grant to replace and modernize traffic signals at a major intersection in Oakland. The ...