A dual carriageway (BrE) or a divided highway (AmE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are designed to higher standards with controlled access are generally classed as motorways, freeways, etc., rather than dual carriageways.
U.S. Route 35 (US 35) is a United States Highway that runs southeast-northwest for approximately 412 miles (663 km) from the western suburbs of Charleston, West Virginia to northern Indiana. Although the highway is physically southeast-northwest, it is nominally north–south. The highway's southern terminus is in Teays Valley, West Virginia, near Scott Depot, at Interstate 64 (I-64). Its northern terminus is near Michigan City, Indiana, at US 20. The West Virginia portion of the highway is mostly expressway, becoming a freeway shortly before it crosses the Ohio River into Ohio. The Ohio portion has been upgraded to a four-lane highway/freeway between the West Virginia state line and Trotwood, west of Dayton.
State Highway 121 is a state highway angling from southwest to northeast through north central Texas. It runs from Cleburne, Texas at US 67 to SH 78 in Bonham, Texas, just north of a junction with US 82.
A limited-access road, known by various terms worldwide, including limited-access highway, dual-carriageway, expressway, and partial controlled-access highway, is a highway or arterial road for high-speed traffic which has many or most characteristics of a controlled-access highway, including limited or no access to adjacent property, some degree of separation of opposing traffic flow, use of grade separated interchanges to some extent, prohibition of slow modes of transport, such as bicycles, horse-drawn vehicles or ridden horses, or self-propelled agricultural machines; and very few or no intersecting cross-streets or level crossings. The degree of isolation from local traffic allowed varies between countries and regions. The precise definition of these terms varies by jurisdiction.
U.S. Route 97 in the U.S. state of Oregon is a major north–south United States highway which runs from the California border, south of Klamath Falls, to the Washington border on the Columbia River, between Biggs Junction, Oregon and Maryhill, Washington. Other than the northernmost stretch, US 97 is known as The Dalles-California Highway. In May 2009, Oregon Senate passed a bill to rename US 97 as "World War II Veterans Historic Highway".
A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway, and expressway. Other similar terms include throughway or thruway and parkway. Some of these may be limited-access highways, although this term can also refer to a class of highways with somewhat less isolation from other traffic.
U.S. Route 422 (US 422) is a 271-mile-long (436 km) spur route of US 22 split into two segments in the U.S. states of Ohio and Pennsylvania. The western segment of US 422 runs from downtown Cleveland, Ohio, east to Ebensburg, Pennsylvania. The eastern segment, located entirely within Pennsylvania, runs from Hershey east to King of Prussia, near Philadelphia. US 422 Business serves as a business route into each of four towns along the way.
State Route 65 is a north-south state highway in the U.S. state of California. It is composed of two segments in the Central Valley. The southern segment begins at SR 99, near Bakersfield and terminates at SR 198 near Exeter. It also serves the communities of Oildale, Ducor, Terra Bella, Porterville, Strathmore, and Lindsay. The northern segment begins at Interstate 80 in Roseville and terminates at SR 70 at Olivehurst. It also serves the communities of Rocklin, Lincoln, and Wheatland.
U.S. Route 50 is a major east–west route of the U.S. Highway system, stretching just over 3,000 miles (4,800 km) from West Sacramento, California, east to Ocean City, Maryland, on the Atlantic Ocean. In the U.S. state of Maryland, US 50 exists in two sections. The longer of these serves as a major route connecting Washington, D.C., with Ocean City; the latter is the eastern terminus of the highway. The other section passes through the southern end of Garrett County for less than 10 miles (16 km) as part of the Northwestern Turnpike, entering West Virginia at both ends. One notable section of US 50 is the dual-span Chesapeake Bay Bridge across the Chesapeake Bay, which links the Baltimore–Washington metropolitan area with the Eastern Shore region, allowing motorists to reach Ocean City and the Delaware Beaches.
U.S. Route 101 (US 101) is a major north–south United States Numbered Highway, stretching from Los Angeles, California, to Tumwater, Washington. The California portion of US 101 is one of the last remaining and longest U.S. Routes still active in the state, and the longest highway of any kind in California. US 101 was also one of the original national routes established in 1926. Significant portions of US 101 between the Los Angeles area and the San Francisco Bay Area follow El Camino Real, the commemorative route connecting the former Alta California's 21 missions.
U.S. Route 30 (US 30) is a United States Numbered Highway that runs east–west across the southern part of Pennsylvania, passing through Pittsburgh and Philadelphia on its way from the West Virginia state line east to the Benjamin Franklin Bridge over the Delaware River into New Jersey.
A super two, super two-lane highway or wide two-lane is a two-lane surface road built to highway standards with wide lanes and other safety features normally present on a freeway with more lanes, typically including occasional passing lanes and hard shoulders. It is often built for eventual conversion to divided highway status once traffic volumes rise.
An unused highway is a highway or highway ramp that was partially or fully constructed, but went unused or was later closed or part of a future expansion. An unused roadway or ramp may often be referred to as an abandoned road, ghost road, highway to nowhere, stub ramp, ghost ramp, ski jump, stub street, stub-out, or simply stub.
U.S. Route 29 (US 29) is a north–south United States Numbered Highway that runs for 1,043.3 miles (1,679.0 km) from Pensacola, Florida, to the western suburbs of Baltimore, Maryland. In the U.S. state of Maryland, US 29 is a major highway that emerges from Washington DC and runs north into eastern Montgomery County, stretching over 25.86 miles (41.62 km) through the state and terminating at Maryland Route 99 (MD 99) outside of Ellicott City. It serves the cities of Columbia and Ellicott City and provides the westernmost north–south route between Washington DC and Baltimore.
U.S. Highway 169 (U.S. 169) is a major north–south highway in the U.S. state of Minnesota, connecting the Minnesota River valley with the Twin Cities and the Iron Range. Much of the route is built to expressway or freeway standards.
U.S. Route 202 is a US Highway running from New Castle, Delaware, northeast to Bangor, Maine. In the U.S. state of Pennsylvania, the route runs for 59 miles (95 km), from the Delaware state line in Bethel Township, Delaware County, to the New Hope–Lambertville Toll Bridge over the Delaware River in Solebury Township, where the route crosses into New Jersey. The highway runs through the western and northern suburbs of Philadelphia in the Delaware Valley metropolitan area, and serves as a toll-free bypass around the city, avoiding the busy traffic and congestion on Interstate 95 (I-95). It is signed north–south and follows a general southwest–northeast direction through the state.
This article describes the highway systems available in selected countries.
Highway revolts have occurred in cities and regions across the United States. In many cities, there remain unused highways, abruptly terminating freeway alignments, and short stretches of freeway in the middle of nowhere, all of which are evidence of larger projects which were never completed. In some instances, freeway revolts have led to the eventual removal or relocation of freeways that had been built.
