THE ACCURACY OF CALCULATIONS RELATING TO ACCIDENT RECONSTRUCTION

UEBER DIE GENAUIGKEIT VON BERECHNUNGEN IM ZUSAMMENHANG MIT DER REKONSTRUKTION VON UNFAELLEN

THE ACTUAL SCALE OF THE INACCURACIES INEVITABLE IN CALCULATIONS RELATING TO ROAD ACCIDENTS IS A PROBLEM CONSTANTLY FACING EXPERTS IN THE FIELD. THIS PROBLEM SHOULD BE ALLEVIATED BY THE GRAPHICAL DESCRIPTIONS CONTAINED IN THIS REPORT. CALCULATIONS OF DISPERSION INVOLVE CONSIDERATIONS OF TWO INFLUENCING FACTORS (1) THE ACCURACY WITH WHICH ROAD TRAFFIC PATTERNS MAY BE REPEATED IN OPTIMAL CASES (2) THE ACCURACY OR POSSIBLE MISREGISTERING OF THE MEASUREMENT APPARATUS WHEN COMPARED WITH THE ACTUAL VALUE. OF ADDITIONAL SIGNIFICANCE ARE UNCERTAINTIES REGARDING ROAD TYPES, VEHICLE CONDITION AND CLIMATIC INFLUENCES. EXPERTS SHOULD APPLY THE METHOD INTENSIVELY TO POSSIBLE INACCURACIES AND ESTABLISH THE STANDARD DEVIATION OF VALUES OBTAINED BY MEANS OF PHYSICAL PROCEDURES. IT IS OFTEN QUESTIONABLE AS TO WHETHER THE FOLLOWING FACTORS ARE SUFFICIENTLY WELL KNOWN TO ENABLE PRECISE CALCULATIONS TO BE MADE (1) CARRIAGEWAY STRUCTURE (2) SURFACING MATERIALS (3) CARRIAGEWAY TEMPERATURE (4) TYRE TEMPERATURE, THE RUBBER MIXTURE OF THE TYRE BATCH IN QUESTION AND THE TYRE TYPE (5) HUMIDITY (6) THE DISTRIBUTION OF DYNAMIC WHEEL LOAD AND INDIVIDUAL VEHICLE TOLERANCES (7) QUANTITATIVE VALUES FOR TIME RELATED PATTERNS OF DRIVER ACTION BEFORE ACCIDENT OCCURRENCE.

• Authors:
  • ENKE, K
• Publication Date: 1976-9

Language

• German

Media Info

• Pagination: 165-6
• Serial:
  • Verkehrsunfall
  • Volume: 14
  • Issue Number: 9
  • Publisher: Information Verlag

Subject/Index Terms

• TRT Terms: Calculation; Charts; Crash reconstruction; Errors; Measuring instruments; Physics; Tires; Traffic lanes; Vehicles; Weather
• ITRD Terms: 6155: Apparatus (measuring); 6464: Calculation; 2992: Carriageway; 6486: Chart; 6440: Error; 6755: Physics; 1621: Reconstruction (accid); 1381: Tyre; 1255: Vehicle; 2545: Weather
• Subject Areas: Vehicles and Equipment; I80: Accident Studies;

Filing Info

• Accession Number: 01300197
• Record Type: Publication
• Source Agency: Bundesanstalt für Straßenwesen (BASt)
• Files: ITRD
• Created Date: Nov 21 2010 7:45AM