At least twice a day, Colossal Cave Road transforms from a mostly calm, two-lane suburban road to a congested, traffic-clogged obstacle course of school zones, potholes and impatient drivers, bisected by two sets of railroad tracks.
Heavy evening traffic moves on the southbound side of Highway 141 south of Conway Road on Monday, May 6, 2013. The Missouri Department of Transportation is proposing to ease congestion on the thoroughfare by adding lanes on the stretch of road. Photo by Christian Gooden, firstname.lastname@example.org
Vehicles back up at Ina and Oracle roads, one of three area intersections with the highest traffic congestion, as rated in the Pima Association of Governments analysis. The morning rush-hour delay at this intersection averages about 1.9 minutes.