The study of tunnel lighting systems has evolved into a multidisciplinary endeavour that integrates advanced optical engineering, material sciences and sustainable design. Contemporary systems not ...

Pittsburgh Regional Transit announced late last week that the tunnel, which allows buses and light-rail trains to travel ...

PHOENIX — A major east-west highway in Arizona will be shut down for four nights beginning Monday, the Arizona Department of Transportation said. Drivers who travel on US 60 east of Superior will have ...

Six years after first approving new lighting as a safety measure, BART has yet to install the brighter LED lights engineers say will aid evacuation in the darkened subway tunnel running under San ...

Border Patrol agents uncovered a man-made tunnel connecting Ciudad Juárez to El Paso early Thursday, equipped with lighting, ventilation, and wood bracing, U.S. Customs and Border Protection officials ...