The popular navigation app Waze is putting a new twist on the phrase "tunnel vision." It's trying to ensure drivers relying on digital maps don't lose their way when their GPS signal disappears in ...

PITTSBURGH — Pittsburgh Regional Transit is about to wrap up one of its light-rail improvement projects. The Plinth project will end at the start of service on Friday, and the subway tunnels below ...

Todd Caddy is the man behind the mirrored glass at Pittsburgh’s front door. His job: tunnel manager for PennDOT. From his office on a recent weekday morning on the south face of Mt. Washington, Caddy ...

Let's talk about a classic Pittsburgh nightmare: tunnel traffic. Why it matters: Overall congestion in the region isn't terrible, but every yinzer dreads getting stuck in gridlock that ends at one of ...