Interstate 80
I-80 is the Interstate Highway that most closely approximates the route of the historic Lincoln Highway, the first road across the United States. The highway roughly traces other historically significant travel routes in the Western United States: the Oregon Trail across Wyoming and Nebraska, the California Trail across most of Nevada and California, the first transcontinental airmail route, and except in the Great Salt Lake area, the entire route of the First Transcontinental Railroad. From near Chicago east to near Youngstown, Ohio, I-80 is a toll road, containing the majority of both the Indiana Toll Road and the Ohio Turnpike. I-80 runs concurrently with I-90 from near Portage, Indiana, to Elyria, Ohio. In Pennsylvania, I-80 is known as the Keystone Shortway, a non-tolled freeway that crosses rural north-central portions of the state on the way to New Jersey and New York City.
U.S. Route 278
U.S. Route 278 is a parallel route of U.S. Route 78. It currently runs for 1,074 miles (1,728 km) from Hilton Head Island, South Carolina to Wickes, Arkansas at U.S. Route 71/U.S. Route 59. It is longer than its parent highway, US 78. US 278 passes through the states of South Carolina, Georgia, Alabama, Mississippi, and Arkansas. This highway passes through the cities and towns of Augusta, Covington, Atlanta, Powder Springs, Hiram, Dallas, Rockmart, and Cedartown, Georgia; Gadsden and Cullman, Alabama; Tupelo, Oxford, and Greenville, Mississippi; and Monticello and Hope, Arkansas.