The article discusses the current improvements to the A8 French Autoroute toll road known as 'The Provencale'. Upgrading and widening the route is not straightforward as customer safety and trouble-free driving take priority. The third lane is being built as a corridor separated from the existing two lanes by temporary concrete barriers. All work that might impede traffic is stopped from June till September. Because of the need to design acoustic barriers, the wide variety of ground material and the hill terrain, the widening is costing as much as a new three lane autoroute through open country. Examples are given of the problems and novel techniques used to solve them, keeping the autoroute open to traffic at all times. A raft of expanded polystyrene was used as a base alongside a section where the original route had subsided by up to 800 mm since it was built. Five months disruption to traffic was avoided by building on underpass bridge 30m away from the autoroute and pulling it into position on a system of air states.

  • Availability:
  • Corporate Authors:

    Reed Business Information, Limited

    Quadrant House, The Quadrant
    Brighton Road
    Sutton, Surrey  United Kingdom  SM2 5AS
  • Authors:
    • TOOTELL, L
  • Publication Date: 1989-8-24


  • English

Media Info

  • Pagination: p. 14-15
  • Serial:
    • Volume: 350
    • Issue Number: 5732
    • Publisher: Reed Business Information, Limited
    • ISSN: 0010-7859

Subject/Index Terms

Filing Info

  • Accession Number: 00604863
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Feb 28 1991 12:00AM