EFFECTIVENESS OF ROADSIDE CRASH COUNTERMEASURES

A survey of design and traffic engineers in each of the 50 states of America was carried out to choose one of a group of three alternatives they considered most beneficial in reducing accidents. The questionnaire contained 18 such groups. An example is quoted of the choice of: (a) realignment at one location; (b) roadside/slope modification at two locations; or (c) guardrail at four locations. Analysis of the responses showed good agreement in that total reconstruction should be considered if it is less than 2.5 times the cost of the roadside/slope modifications, and less than 3.5 times the cost of guardrail installation. The survey indicated that roadside/slope modification would be preferred if realignment were greater or equal to 2.5 times the cost of roadside/slope modifications and less than or equal to 2.75 times the cost of a guardrail. Results given are subjective judgements of professionals regarding the safety of hypothetical cases. Other measures could be used in practice and it is not certain that the recommended measures are either effective or representative of current practice. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1767712
• Corporate Authors:

  GORDON AND BREACH SCIENCE PUB.

  AMSTERDAM:
  ,    
• Authors:
  • Wright, P H
• Publication Date: 1983

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 155-159
• Serial:
  • Transportation Planning and Technology
  • Volume: 8
  • Issue Number: 3
  • Publisher: Taylor & Francis
  • ISSN: 0308-1060
  • Serial URL: https://www.tandfonline.com/toc/gtpt20/current

Subject/Index Terms

• TRT Terms: Alignment; Alternatives analysis; Costs; Countermeasures; Data collection; Guardrails; Highway grades; Injury severity; Measures of effectiveness; Methodology; Prevention; Questionnaires; Roadside; Safety; Slopes; Surveys; Traffic engineers
• Uncontrolled Terms: Decreases; Effectiveness; Modifications
• Geographic Terms: United States
• ITRD Terms: 1661: Accident prevention; 2894: Alignment; 224: Cost; 9009: Decrease; 2806: Gradient; 9102: Method; 9048: Modification; 1686: Safety fence; 1623: Severity (accid, injury); 8122: USA
• Subject Areas: Design; Finance; Highways; Safety and Human Factors; Security and Emergencies; I82: Accidents and Transport Infrastructure; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 00381199
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Apr 30 1984 12:00AM