ROAD BARRIERS: A REVIEW OF WARRANTS

In view of recent research in overseas countries on the use of roadside barriers, a literature survey was made to determine what new developments have led to better use of roadside barriers. This report is limited to a review of the warrants for the installation of guardrails. Warrants for roadside barriers are normally described in terms of embankment geometry, roadside obstacles and the presence of pedestrians. The most valuable recommendations in the overseas publications are contained in two reports, i.e. one by the Highway Research Board in their Report 81 in 1964 and one by the Texas A and M Research Foundation in 1976. A summary of the warrants in these two reports are given in this review. Current warrants in the Republic of South Africa are also summarised as prescribed by the Department of Transport and by the Cape Provincial Administration in their manuals. It is concluded that considerable progress has been made in the development of warrants for roadside barriers but certain aspects need further investigaiton. /Author/

• Corporate Authors:

  National Institute for Transport & Rd Res S Af

  P.O. Box 395
  Pretoria 0001, Transvaal,   South Africa 
• Authors:
  • Jobson, A J
• Publication Date: 1976-9

Media Info

• Features: Figures; References; Tables;
• Pagination: 39 p.

Subject/Index Terms

• TRT Terms: Barriers (Roads); Embankments; Hazards; Manuals; Obstructions (Navigation); Pedestrians; Roadside structures; Surveys
• Uncontrolled Terms: Barriers
• Subject Areas: Design; Highways; Pedestrians and Bicyclists;

Filing Info

• Accession Number: 00165509
• Record Type: Publication
• Report/Paper Numbers: RF/2/76
• Files: TRIS
• Created Date: Dec 27 1977 12:00AM