Pennsylvania Turnpike

The Pennsylvania Turnpike (Penna Turnpike or PA Turnpike) is a toll highway that is operated by the Pennsylvania Turnpike Commission (PTC) in the Commonwealth of Pennsylvania in the United States. A controlled-access highway, it runs for across the state, connecting the Pittsburgh, Harrisburg and Philadelphia areas. It also passes through four tunnels as it crosses the Appalachian Mountains in central Pennsylvania. Part of the Interstate Highway System, it is designated as part of Interstate 76 (I-76) between the Ohio state line and Valley Forge, I-70 (concurrent with I-76) between New Stanton and Breezewood, Interstate 276 (I-276) between Valley Forge and Bristol Township, and I-95 from Bristol Township to the New Jersey state line. The turnpike's western terminus is located at the Ohio state line in Lawrence County, where the road continues west as the Ohio Turnpike. The eastern terminus is situated at the New Jersey state line at the Delaware River–Turnpike Toll Bridge, which crosses the Delaware River in Bucks County. The road then continues east as the Pearl Harbor Memorial Extension of the New Jersey Turnpike. The road uses an all-electronic tolling system; tolls may be paid using E-ZPass or toll by plate (which uses automatic license plate recognition). Historically, cash tolls were collected using a combination of the ticket system and a barrier toll system, but cash tolls were phased out between 2016 and 2020. The turnpike also offers 15 service plazas, providing food and fuel to travelers. During the 1930s, the Pennsylvania Turnpike was designed to improve automobile transportation across the mountains of Pennsylvania, using seven tunnels built for the abandoned South Pennsylvania Railroad in the 1880s. The road opened in 1940 between Irwin and Carlisle. It was one of the earlier long-distance limited-access highways in the United States and served as a precedent for additional limited-access toll roads and the Interstate Highway System. The Pennsylvania Turnpike was extended east to Valley Forge in 1950 and west to the Ohio state line in 1951.

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Institute of Electrical and Electronics Engineers2011

Toll Plaza Merging Traffic Control for Throughput Maximization

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Elsevier2008

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