TYPICAL GOODS VEHICLE DECELERATION RATES

This note reports on the results of a vehicle test day at Eye Airfield, England, on 7 May 1994. A series of controlled decelerations was carried out using a variety of goods vehicles to establish criteria for describing the manner of deceleration, when examining tachograph charts from vehicles involved in accidents. This was intended as a test of driver perception in relation to gentle, normal, and heavy braking. Further tests on the skidding of goods vehicles were conducted, for use during the mathematical investigation of road accidents. Several goods vehicles, with differing weight-axle combinations, were obtained, and their tachograph calibrations were verified. The vehicles were then subjected to several specified tests in the hands of experienced police drivers, whose different interpretations were tested. The completed charts were analysed microscopically, and compared with data acquired by other measuring equipment on the same day. Eight types of deceleration and braking tests were conducted, and their results are tabulated in some detail. Average deceleration tests are shown for all the tests, also lowest and highest deceleration rates for five of them.

• Availability:
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• Corporate Authors:

  METROPOLITAN POLICE FORENSIC SCIENCES LABORATORY

  109 LAMBETH ROAD
  LONDON,   United Kingdom  SE1 7LP
• Authors:
  • NEWBY, J
  • WATSON, R
• Publication Date: 1997

Language

• English

Media Info

• Pagination: p. 12-6
• Serial:
  • IMPACT (ITA1)
  • Volume: 6
  • Issue Number: 1
  • Publisher: METROPOLITAN POLICE FORENSIC SCIENCES LABORATORY
  • ISSN: 0959-4302

Subject/Index Terms

• TRT Terms: Braking; Charts; Crashes; Deceleration; Drivers; Perception; Skidding; Tachographs; Tests; Trucks; Vehicles
• Geographic Terms: United Kingdom
• ITRD Terms: 1643: Accident; 1874: Braking; 6486: Chart; 5416: Deceleration; 1772: Driver; 1236: Lorry; 2229: Perception; 1645: Skidding; 1338: Tachograph; 6255: Test; 8119: United Kingdom; 1255: Vehicle
• Subject Areas: Motor Carriers; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00738335
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jul 30 1997 12:00AM