CONCRETE CEMENTS A PLACE IN MOTORWAY SAFETY

A review is presented of the types of motorway barriers that are available and would be considered for use by the New Zealand's national road board. The purposes of such barriers are identified and include the prevention of crossing the median, prevention of deflection back into traffic stream and deceleration. The advantages and disadvantages of providing barriers are examined. Statistical evidence is found to be hard to come by in New Zealand due to its small population, systems being chosen therefore largely on evidence from abroad. Four barrier types are described: a) concrete barriers including the rigid New Jersey and the semi-rigid tric bloc; b) steel guard rails including the w-section armco and thrie-beam; C) the ibc, a new corrugated steel, sand-filled design; and D) steel cable barrier systems. Their relative merits are discussed in terms of capital cost, maintenance costs, space required and performance. It is concluded that factors at individual sites will determine the choice of barrier.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/05490219
• Corporate Authors:

  New Zealand Concrete Research Association

  Private Bag
  Porirua,   New Zealand 
• Publication Date: 1989-4

Language

• English

Media Info

• Pagination: p. 2-4
• Serial:
  • NEW ZEALAND CONCRETE CONSTRUCTION
  • Volume: 33
  • Publisher: CEMENT & CONCRETE ASSOCIATION OF NEW ZEALAND
  • ISSN: 0549-0219

Subject/Index Terms

• TRT Terms: Concrete; Costs; Design; Durability; Freeways; Guardrails; Maintenance; Steel
• ITRD Terms: 4755: Concrete; 224: Cost; 9011: Design (overall design); 5910: Durability; 3847: Maintenance; 2752: Motorway; 1686: Safety fence; 4542: Steel
• Subject Areas: Design; Finance; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00498761
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1990 12:00AM