A roundabout, also known as a rotary or traffic circle, is a type of circular intersection or junction in which road traffic is permitted to flow in one direction around a central island, and priority is typically given to traffic already in the junction.
The A14 is a major trunk road in England, running 127 miles (204 km) from Catthorpe Interchange, a major intersection at the southern end of the M6 and junction 19 of the M1 in Leicestershire to the Port of Felixstowe, Suffolk. The road forms part of the unsigned Euroroutes E24 and E30. It is the busiest shipping lane in East Anglia carrying anything from cars to large amounts of cargo between the UK and Mainland Europe.
South Bucks was one of four local government districts in the non-metropolitan county of Buckinghamshire, in South East England.
The Gravelly Hill Interchange, popularly known as Spaghetti Junction, is a road junction in Birmingham, England. It is junction 6 of the M6 motorway where it meets the A38(M) Aston Expressway in the Gravelly Hill area of Birmingham. The interchange was opened on 24 May 1972.
Spaghetti junction is a nickname sometimes given to a complex or massively intertwined road traffic interchange that is said to resemble a plate of spaghetti. Such interchanges may incorporate a variety of interchange design elements in order to maximize connectivity.
Scotch Corner is a junction of the A1(M) and A66 trunk roads near Richmond in North Yorkshire, England. It has been described as "the modern gateway to Cumbria, the North East and Scotland", and is a primary destination signed from as far away as the M6 motorway, 50 miles away. The junction's name is derived from the fact that it is the point of divergence for traffic coming from London, the East Midlands and Yorkshire wishing to continue either to Edinburgh and eastern Scotland or to Glasgow and western Scotland.
In civil engineering, grade separation is a method of aligning a junction of two or more surface transport axes at different heights (grades) so that they will not disrupt the traffic flow on other transit routes when they cross each other. The composition of such transport axes does not have to be uniform; it can consist of a mixture of roads, footpaths, railways, canals, or airport runways. Bridges, tunnels, or a combination of both can be built at a junction to achieve the needed grade separation.
A diamond interchange is a common type of road junction, used where a controlled-access highway crosses a minor road.
In the field of road transport, an interchange or a grade-separated junction is a road junction that uses grade separations to allow for the movement of traffic between two or more roadways or highways, using a system of interconnecting roadways to permit traffic on at least one of the routes to pass through the junction without interruption from crossing traffic streams. It differs from a standard intersection, where roads cross at grade. Interchanges are almost always used when at least one road is a controlled-access highway or a limited-access divided highway (expressway), though they are sometimes used at junctions between surface streets.
The Red Cow interchange is a major road junction in west Dublin, Ireland on the M50, meeting the N7 Naas Road at a free-flow grade-separated junction which incorporates a tram line. The N7 route commences at this junction, junction 1 on the N7 and junction 9 on the M50, and the Naas Road from the city centre via Inchicore to the Red Cow interchange comprises part of the R110 and the R810. The junction is the busiest road junction in Ireland. Before a recent upgrade, it frequently had tailbacks several kilometres long on the routes leading to it.
The A194 road is a road in Tyne and Wear, England. It runs northeast from its start at junction 65 of the A1(M) near Washington, and the first 3 miles (4.8 km) are motorway standard, designated the A194(M). There are intermediate junctions with the A182 and the A195 before the motorway section ends at the A184 junction. The junctions were unnumbered until 2013 when they were designated J1 to J3.
The Almondsbury Interchange in South Gloucestershire, is one of the United Kingdom's largest motorway stack interchanges. The interchange is one of only three four-level stacks in the UK, spanning a range of 1 km by 1 km. It is the interchange for the M5 at junction 15 and M4 at junction 20, and is situated at the northern fringes of Bristol close to the village of Almondsbury, the Aztec West industrial estate, and Bradley Stoke. When it opened in 1966, it was the most complex junction on the British motorway network, a free-flowing interchange on four levels. Since then traffic volumes have increased. Additionally, at busy periods, the Interchange becomes more difficult to negotiate safely. In an attempt to ease congestion, the Interchange has become part of a smart motorway.
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