BEFORE AND AFTER ACCIDENT STUDY AFTER LOW COST ENGINEERING WORKS AT BLACKSITES

This report updates to 1 January 1984 the previous report HCC T292/1 and its supplement (see TRIS abstract no. 373252). The number of sites treated has increased to 189, and the estimate of casualty saving now exceeds the thousand mark. The overall accident reduction is 28%. The discounted rate of return is 708%, using 7% over 5 years only, compared with 30 years for major highway schemes. The total apparent accident saving is 284 accidents per year or 7% of the present county total. (TRRL)

• Corporate Authors:

  Hertfordshire County Council

  Highway Department, Goldings
  Hertford, Hertfordshire,   England 
• Authors:
  • Hardy, M F
• Publication Date: 1984-5

Media Info

• Features: Tables;
• Pagination: 28 p.

Subject/Index Terms

• TRT Terms: Before and after studies; Countermeasures; Crash rates; Crashes; Fatalities; High risk locations; Highways; Safety; Traffic safety
• Uncontrolled Terms: Decreases; Modifications
• Geographic Terms: United Kingdom
• Old TRIS Terms: Low costs
• ITRD Terms: 1643: Accident; 1663: Accident black spot; 1612: Accident rate; 9009: Decrease; 1602: Fatality; 2755: Highway; 9048: Modification; 8119: United Kingdom
• Subject Areas: Design; Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 00392686
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: HCC T 302 Monograph
• Files: ITRD, TRIS
• Created Date: Apr 29 1985 12:00AM