This article shows how new products and research findings have increased the scope for designers of landscaped environmental barriers for use in new road schemes. Effective environmental barriers were first included in British road schemes in the 1970s, and have then gradually improved. Using earthworks to screen roads is well understood and accepted as the most appropriate solution in the UK, where space is available. The required landform can be designed carefully as part of the landscaping, and also create habitats and provide drainage. Over the years, landscape designers and other environmental professionals have increasingly benefited road schemes, with respect to route selection, alignment and junction design, and the details of structures and lighting. A range of products for barriers has appeared on the market during recent years and includes: (1) textured or sound-absorbing surfaces in various materials; (2) patterned or perspex fencing; and (3) modular concrete systems that include plant spaces or supports. They reduce noise transmission and reflection, have better appearance and ease of construction, and generally use less land, although some products also have some drawbacks. A recent example of the wider use of environmental barriers is the widening scheme for the M25 motorway between junctions 10 and 11.

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  • Corporate Authors:

    Thomas Telford Limited

    London,   United Kingdom 
  • Authors:
  • Publication Date: 1995-12


  • English

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Filing Info

  • Accession Number: 00720797
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: May 24 1996 12:00AM