The transcontinental
Interstate 80 (
I-80) is designated across northern
Pennsylvania as the
Keystone Shortway, officially the
Z.H. Confair Memorial Highway. This route was built mainly along a completely new alignment, not paralleling any earlier
U.S. Routes, as a shortcut to the
tolled Pennsylvania Turnpike and
New York State Thruway. It does not serve any major cities in Pennsylvania, and serves mainly as a cross-state route on the
Ohio-
New York City corridor. Most of I-80's path across the state goes through hilly and mountainous terrain, with relatively flat areas playing home to the
freeway toward the western tier of the state.