Driving on the Pennsylvania Turnpike from Interstate 79 to Ohio

The turnpike runs east–west across Pennsylvania, from the Ohio state line in Lawrence County to the New Jersey state line in Bucks County. It passes through the Pittsburgh, Harrisburg, and Philadelphia areas, along with farmland and woodland. The highway crosses the Appalachian Mountains, in the central part of the state, through four tunnels. The Pennsylvania Turnpike Commission, created in 1937 to construct, finance, operate, and maintain the road, controls the highway.In 2015, the roadway had an annual average daily traffic count ranging from a high of 120,000 vehicles between Norristown and I-476 to a low of 12,000 vehicles between the Ohio border and I-79/US 19