In Great Britain, there is a numbering scheme used to classify and identify all roads. Each road is given a single letter and a subsequent number. Though this scheme was introduced merely to simplify funding allocations, it soon became used on maps and as a method of navigation. There are two sub-schemes in use: one for motorways, and another for non-motorway roads.
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.
The island of Ireland, comprising Northern Ireland and the Republic of Ireland, has an extensive network of tens of thousands of kilometres of public roads, usually surfaced. These roads have been developed and modernised over centuries, from trackways suitable only for walkers and horses, to surfaced roads including modern motorways. Driving is on the left-hand side of the road. The major routes were established before Irish independence and consequently take little cognisance of the border other than a change of identification number and street furniture. Northern Ireland has had motorways since 1962, and has a well-developed network of primary, secondary and local routes. The Republic started work on its motorway network in the early 1980s; and historically, the road network there was once somewhat less well developed. However, the Celtic Tiger economic boom and an influx of European Union structural funding, saw national roads and regional roads in the Republic come up to international standard quite quickly. In the mid-1990s, for example, the Republic went from having only a few short sections of motorway to a network of motorways, dual carriageways and other improvements on most major routes as part of a National Development Plan. Road construction in Northern Ireland now tends to proceed at a slower pace than in the Republic, although a number of important bypasses and upgrades to dual carriageway have recently been completed or are about to begin.
Craigavon is a town in northern County Armagh, Northern Ireland. Its construction began in 1965 and it was named after the first Prime Minister of Northern Ireland: James Craig, 1st Viscount Craigavon. It was intended to be the heart of a new linear city incorporating Lurgan and Portadown, but this plan was mostly abandoned and later described as having been flawed. Among local people today, "Craigavon" refers to the area between the two towns. It is built beside a pair of artificial lakes and is made up of a large residential area (Brownlow), a second smaller one (Mandeville), plus a central area (Highfield) that includes a substantial shopping centre, a courthouse and the district council headquarters. The area around the lakes is a public park and wildlife haven made up of woodland with walking trails. There is also a watersports centre, golf course and ski slope in the area. In most of Craigavon, motor vehicles are completely separated from pedestrians, and roundabouts are used extensively. It hosted the headquarters of the former Craigavon Borough Council.
The M1 is a motorway in Northern Ireland. It is the longest motorway in Northern Ireland and runs for 38 miles (61 km) from Belfast to Dungannon through County Antrim, County Down, County Armagh and County Tyrone. It forms part of the route via the A1 in Northern Ireland between Belfast and Dublin as well as being a part of the unsigned European E01 and E18 routes.
European route E18 runs between Craigavon in Northern Ireland and Saint Petersburg in Russia, passing through Scotland, England, Norway, Sweden and Finland. It is about 1,890 kilometres in length.
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 M3 is a 0.8-mile-long (1.3 km) urban motorway that connects the M2 in north Belfast, Northern Ireland to the A2 Sydenham Bypass in east Belfast. It is the shortest motorway in Northern Ireland, and one of the busiest, carrying 60,000 vehicles per day as of 2005. It has a permanent speed limit of 50 mph (80 km/h).
The United Kingdom has a well developed and extensive network of roads totalling about 262,300 miles (422,100 km). Road distances are shown in miles or yards and UK speed limits are indicated in miles per hour (mph) or by the use of the national speed limit (NSL) symbol. Some vehicle categories have various lower maximum limits enforced by speed limiters. A unified numbering system is in place for Great Britain, whilst in Northern Ireland, there is no available explanation for the allocation of road numbers.
A national primary road is a road classification in Ireland. National primary roads form the major routes between the major urban centres. There are 2649 km of national primary roads. This category of road has the prefix "N" followed by one or two digits. Motorways are prefixed "M" followed by one or two digits.
The Westlink road in Belfast, Northern Ireland is a dual carriageway throughpass, designated the A12, connecting the M1 to the M2 and M3 motorways which run south, north and east of the city, respectively. The road forms part of European route E01.
The M5 is a 1.4-mile-long (2.3 km) spur motorway in north Belfast, Northern Ireland. It connects the M2 to the A2 Shore Road at Hazelbank in Newtownabbey. It is a dual two lane road with most of the road on a causeway in Belfast Lough in order to bypass Whitehouse beach.
The M12 is a 1+1⁄2 miles (2.4 km) length of spur motorway in County Armagh, Northern Ireland. It was opened in 1970.
A High-quality dual carriageway (HQDC) is a road category in Ireland. It is defined as an all-purpose dual carriageway road type built to near motorway standards, but without motorway classification or motorway restrictions. High-quality dual carriageways have full grade-separated access and do not have junctions with minor roads. Such roads in the Republic of Ireland have been built as part of the 2000–2006 and 2007–2013 National Development Plans, including interurban routes from Dublin to other cities.
European route E1 is a series of roads in Europe, part of the United Nations International E-road network, running from Larne, Northern Ireland to Seville, Spain. There is a sea crossing between Rosslare Harbour, in Ireland, and Ferrol, but no ferry service. The road also passes through Portugal – past the city of Porto, through the capital, Lisbon, and then south to the Algarve, passing Faro before reaching the Spanish border west of Huelva.
In Ireland, the highest category of road is a motorway, indicated by the prefix M followed by a one- or two-digit number. The motorway network consists entirely of motorway-grade dual carriageways and is largely focused upon Dublin. There are also several three-lane motorways, while Ireland's busiest road, the M50, incorporates four-lane, five-lane, and six-lane stretches.
There have been routes and trackways in Ireland connecting settlements and facilitating trade since ancient times and the country now has an extensive network of public roads connecting all parts of the island.
A smart motorway, also known in Scotland as an intelligent transport system, is a section of motorway in the United Kingdom that employs active traffic management (ATM) techniques to increase capacity through the use of MIDAS technology including variable speed limits and occasionally hard shoulder running and ramp metering at busy times. They were developed at the turn of the 21st century as a cost-effective alternative to traditional carriageway widening, with intended benefits ranging from more reliable journey times to lower vehicle emissions. However, despite the risk of a collision occurring between two moving vehicles being found to be decreased, there has been an acknowledged rise in the incidence of collisions involving vehicles where at least one was stationary in the first few years following the widespread removal of the hard shoulder on the country's busiest sections of motorway. Smart motorways garnered intense criticism from politicians, police representatives and motoring organisations, particularly from 2020 onwards, after a surge in near miss incidents and dozens of fatalities were revealed, and as of April 2023, no new smart motorways will be built.
The Lagan Canal was a 44-kilometre (27 mi) canal built to connect Belfast to Lough Neagh. The first section, which is a river navigation, was opened in 1763, and linked Belfast to Lisburn. The second section from Lisburn to Lough Neagh includes a small amount of river navigation, but was largely built as a canal. At its peak it was one of the most successful of the Irish canals, but ultimately it was unable to compete with road and rail transport, and the two sections were closed in 1954 and 1958. The central section from Sprucefield to Moira was destroyed by the construction of the M1 motorway in the 1960s. Responsibility for most of its remains passed first to the Department of Agriculture and then to the Department of Culture, Arts and Leisure, although the section between Aghalee Bridge and Lough Neagh, including the final ten locks, passed into private ownership. There is an active campaign to re-open the canal, including reinstatement of the central section.
The Belfast Urban Motorway was a proposed motorway system in Belfast, Northern Ireland announced in 1964, but was never completed. Only the Western portion was built as the A12, Westlink. It was to be built in three phases: Phase 1, from the M1 at Broadway to the M2 at York Street; Phase 2, from the M2 at York Street across the River Lagan to the M3 at the bottom of the Newtownards Road; and Phase 3, from the Newtownards Road south through Short Strand, back across the River Lagan, through Shaftesbury Square to join the start at the M1.
