THE EFFECTS ON VEHICLE SPEEDS OF ROADSIDE SAFETY POSTERS: PHASE III

Two previous studies in London boroughs have produced conflicting results; one study showed that the reduction in speeds was maintained following the removal of the posters, in the other study speeds increased again after the posters had been taken down. The paper describes a further study which was conducted at a total of 20 sites, within 30 mile/h limits, with high accident rates and higher-than-average vehicle speeds. Speed readings were taken, using a radar meter. At off-peak periods, before, after and during the one month that the posters were displayed. It was found that, as in the previous studies, the number of vehicles exceedtng the 30 mile/h limit reduced significantly when the posters were displayed. However as speeds increased following the removal of the posters, there was found to be little difference between before-and-after speeds at the majority of sites. However, measurements showed that although speeds at the sites were believed to be high, only half the sites had an 85th percentile speed exceeding 35 mile/h and it was concluded that the influence of posters at such sites would be unlikely to produce a significant change. Accident records show that the actual number of accidents was too small to draw any conclusions on possible benefits. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00410683
• Corporate Authors:

  Printerhall Limited

  29 Newmart Street
  London W1P 3PE,   England 
• Authors:
  • Simmonds, A G
• Publication Date: 1981-8-9

Media Info

• Features: References; Tables;
• Pagination: p. 480-485
• Serial:
  • Traffic Engineering & Control
  • Volume: 22
  • Issue Number: 8/9
  • Publisher: Hemming Group, Limited
  • ISSN: 0041-0683
  • Serial URL: http://www.tecmagazine.com/

Subject/Index Terms

• TRT Terms: Advertising campaigns; Before and after studies; Crash rates; Measures of effectiveness; Motor vehicles; Printed publicity; Publicity; Roadside advertising; Speed; Traffic safety education; Traffic speed; Urban areas
• Uncontrolled Terms: Decreases; Effectiveness
• Geographic Terms: United Kingdom
• ITRD Terms: 9148: Before and after study; 9009: Decrease; 8573: Publicity; 5408: Speed; 8119: United Kingdom; 313: Urban area
• Subject Areas: Education and Training; Highways; Operations and Traffic Management; Safety and Human Factors; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 00348133
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: HS-032 669
• Files: ITRD, TRIS
• Created Date: Mar 30 1982 12:00AM