Grade-separated junctions and interchanges

  • R. J. Salter


Grade-separated junctions have been defined’ as ones which require use of an at-grade junction at the commencement or termination of the slip roads. This at-grade junction, in the form of either a major-minor priority junction or a roundabout together with the slip roads, can produce a diamond junction, a half-cloverleaf junction or a roundabout junction.


Major Road Slip Road Highway Traffic Minor Road Junction Type 
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  1. 1.
    Department of Transport, Layout of grade separated junctions, Departmental Advice Note TA 48/86, London (1986)Google Scholar

Copyright information

© R. J. Salter 1989

Authors and Affiliations

  • R. J. Salter
    • 1
  1. 1.University of BradfordUK

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