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  2. Grade separation - Wikipedia

    en.wikipedia.org/wiki/Grade_separation

    For instance, it is extremely uncommon to find an at-grade junction on a British motorway; it is all but impossible on a U.S. Interstate Highway, though a few do exist. If traffic can traverse the junction from any direction without being forced to come to a halt, then the junction is described as fully grade separated or free-flowing.

  3. Grade separated junction - Wikipedia

    en.wikipedia.org/wiki/Grade_separated_junction

    A grade-separated junction is a transport junction where at least one bridge or tunnel is used to separate traffic flows (known as grade separation). Relevant articles include: Road interchanges, known as grade-separated junctions in the UK; A flying junction, a type of grade-separated junction found on railway lines

  4. Interchange (road) - Wikipedia

    en.wikipedia.org/wiki/Interchange_(road)

    In the field of road transport, an interchange (American English) or a grade-separated junction (British English) 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 ...

  5. A roads in Zone 2 of the Great Britain numbering scheme

    en.wikipedia.org/wiki/A_roads_in_Zone_2_of_the...

    Ran along Titmore Lane linking the A27/A280 grade separated junction to the A259 roundabout with the A2032. The number was reserved when the new grade separated junction was built as Titmore Lane was proposed to be improved to support new housing development, and would be numbered A2700 when works were completed.

  6. Werrington dive-under - Wikipedia

    en.wikipedia.org/wiki/Werrington_dive-under

    The Werrington dive-under (known as the Werrington Grade Separation during construction) [1] is a replacement dual track grade separated railway junction at Werrington Junction, 3 miles (5 km) north of Peterborough railway station in Cambridgeshire, England.

  7. Road hierarchy - Wikipedia

    en.wikipedia.org/wiki/Road_hierarchy

    Pedestrian footbridges and tunnels are also grade-separated. The opposing directions of travel are separated by a central reservation (UK) or median strip (US) generally a few meters to a few dozen meters wide, which may consist of a traffic barrier or a natural barrier like grass. This separation makes controlled-access highways a subset of ...

  8. List of road junctions in the United Kingdom: 0-A - Wikipedia

    en.wikipedia.org/wiki/List_of_road_junctions_in...

    Grade Separated Dumbbell Roundabout Babworth, Nottinghamshire: A1 Worksop Road; A1 Blyth Road; A57; A614 Blyth Road; B6420 Mansfield Road; A conversion from a roundabout to a grade separated dumbbell arrangement opened on 20 May 2008. [7] The B6420 was routed north at this time to Apleyhead. Apple Tree Roundabout Roundabout Yiewsley, LB Hillingdon

  9. Stack interchange - Wikipedia

    en.wikipedia.org/wiki/Stack_interchange

    The High Five Interchange in Dallas, Texas. A directional interchange, colloquially known as a stack interchange, is a type of grade-separated junction between two controlled-access highways that allows for free-flowing movement to and from all directions of traffic.