Specialised chassis-mounted tunnel washing machines developed by Joh Zellinger, Traun, Austria, are designed to increase safety as clean tunnel walls and ceiling reflect more light so leading to a lower light intensity. The machines operate by means of rotating brushes that remove the dirt from detergent sprayed walls followed by a clean water rinse. At the same time road surfaces are sprayed by a high pressure washing installation underneath the chassis. Washing can be carried out at speeds of 2-16 mph depending on tunnel design and degree of contamination. The vehicles can also be equipped for deicing operations by spraying a salt solution onto a road surface from the under-chassis spraying arms. (TRRL)

  • Availability:
  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • Zellinger, F
  • Publication Date: 1979-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00308874
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jun 9 1980 12:00AM