International
AH1 Asian Highway 1, an international route from Japan to the Turkish-Bulgarian border
E01 European route E01 (Northern Ireland to Spain)
E001 European route E001 (Georgia to Armenia)-
Cairo–Dakar Highway
The following highways are numbered 1. For roads numbered A1, see list of A1 roads. For roads numbered B1, see list of B1 roads. For roads numbered M1, see List of M1 roads. For roads numbered N1, see list of N1 roads. For roads numbered S1, see List of highways numbered S1.
AH1 Asian Highway 1, an international route from Japan to the Turkish-Bulgarian border
E01 European route E01 (Northern Ireland to Spain)
E001 European route E001 (Georgia to Armenia)
Cairo–Dakar Highway 
National Road 1 (Albania), road running from border Montenegro (Hani i Hotit) to Tirana.
Albania–Kosovo Highway 
Highway 1 (Australia), a highway connecting all of the country's state capitals and also Darwin, Northern Territory.
All Motorways in the route of National Highway 1
Tolled Motorway in the route of National Highway 1
All roads with national significance on National Highway 1
In QLD and WA
Part of it is the NT and SA
Ring Route 1, South Australia
– Detour of the M1 Pacific Motorway
Wollogorang Road (Borroloola to Queensland Border) replaces National Route 1 Highway 1 (Tasmania) 
Alberta Highway 1 
British Columbia Highway 1 
Manitoba Highway 1 
Newfoundland and Labrador Route 1 
Prince Edward Island Route 1 
Saskatchewan Highway 1 
G1 Expressway 
S01 Expressway (Anhui)
S1 Expressway (Guangdong)
S1 Expressway (Henan) 
S1 Expressway (Hubei)
S01 Expressway (Hunan)
S1 Expressway (Shandong)
S1 Expressway (Shanghai) 
S1 Expressway (Sichuan)
S1 Expressway (Tianjin) 
S1 Expressway (Tibet) 
S1 Expressway (Zhejiang)
A1 motorway (Cyprus) 
B1 road (Cyprus)
AP-1 Motorway (Equatorial Guinea)
S1 Highway 
SH1 Road (Georgia)
Bundesautobahn 1 in Germany 
Bundesstraße 1 in Germany 
Bundesstraße 1a, branch of Bundesstraße 1 
Route 1A (Laos)
Route 1C (Laos)
Route 1E (Laos)
Route 1I (Laos)
FT 1 Malaysia Federal Route 1 
North–South Expressway Northern Route North–South Expressway Northern Route 
Thailand Route 1 (Phahonyothin Road)
Interstate A-1 (Alaska; unsigned)
Interstate H-1 (Hawaii)
U.S. Route 1 
U.S. Route 1A 
U.S. Route 1 Business (Georgia)
U.S. Route 1 Business (Maryland)
New England Route 1 (former)
Alabama State Route 1 
Alaska Route 1 
Arkansas Highway 1 
California State Route 1; merges in some places with U.S. Route 101 
Colorado State Highway 1 
Delaware Route 1 
Delaware Route 1A 
Delaware Route 1B 
Delaware Route 1D 
Florida State Road A1A 
Georgia State Route 1 
Idaho State Highway 1 
Illinois Route 1 
Indiana State Road 1 
Iowa Highway 1 
K-1 (Kansas highway) 
Kentucky Route 1 
Louisiana Highway 1 
Massachusetts Route 1A, Alternate route of U.S. Route 1 
M-1 (Michigan highway) 
Minnesota State Highway 1 Mississippi Highway 1 
Missouri Route 1 
Montana Highway 1 
Nebraska Highway 1 
Nebraska Spur 1B 
Nebraska Spur 1D 
Nevada State Route 1 (former)
New Hampshire Route 1A, Alternate route of U.S. Route 1 
New Hampshire Route 1B, Alternate route of U.S. Route 1 
New Jersey Route 1 (former)
New Mexico State Road 1 
New York State Route 1A (former)
New York State Route 1B (former)
New York State Route 1X (former)
North Dakota Highway 1 
Ohio State Route 1 (former) (1920s)
Ohio State Route 1 (former) (1960s)
Oklahoma State Highway 1 
Pennsylvania Route 1 (former)
Rhode Island Route 1A, Alternate route of U.S. Route 1 
Tennessee State Route 1 
Texas State Highway 1 (former)
Texas State Highway Loop 1 
Texas State Highway NASA Road 1 
Texas Farm to Market Road 1 
Texas Ranch Road 1 
Utah State Route 1 (former)
Secondary State Highway 1A (Washington) (former)
American Samoa Highway 001 
Guam Highway 1 
Interstate PRI-1 (Puerto Rico; unsigned)
Puerto Rico Highway 1 
| Preceded by 0 | Lists of highways 1 | Succeeded by 2 |
The M1 motorway is a motorway in Ireland. It forms the large majority of the N1 national primary road connecting Dublin towards Belfast along the east of the island of Ireland. The route heads north via Swords, Drogheda and Dundalk to the Northern Irish border just south of Newry in County Armagh, where it joins the A1 road and further on, the M1 motorway in Northern Ireland. It also forms a significant part of the road connection between Dublin and the Northern Irish cities of Newry, and Lisburn. The route is part of European route E01.
A spur route is a short road forming a branch from a longer, more important road such as a freeway, Interstate Highway, or motorway. A bypass or beltway is not considered a spur route as it typically reconnects with another or the same major road.
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.
A routenumber, designation or abbreviation is an identifying numeric designation assigned by a highway authority to a particular stretch of roadway to distinguish it from other routes and, in many cases, also to indicate its classification, general geographical location and/or orientation. The numbers chosen may be used solely for internal administrative purposes; however, in most cases they are also displayed on roadside signage and indicated on maps.
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.
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.
The Spanish motorway (highway) network is the third largest in the world, by length. As of 2019, there are 17,228 km (10,705 mi) of High Capacity Roads in the country. There are two main types of such roads, autopistas and autovías, which differed in the strictness of the standards they are held to.
Switzerland has a two-class highway system: motorways with separated roads for oncoming traffic and a standard maximal speed limit of 120 kilometres per hour (75 mph), and expressways often with oncoming traffic and a standard maximal speed limit of 100 kilometres per hour (62 mph).
The AP-9 or Autoestrada do Atlántico is a toll motorway in Galicia, Spain. It starts in A Coruña and runs south past the cities of Santiago de Compostela, Pontevedra and Vigo, before ending at the town of Tui, a few kilometres north of the Portuguese border at the Minho River.
This article describes the highway systems available in selected countries.
