A QUICK AND SIMPLE WAY TO PREPARE COLLISION DIAGRAMS

Collision diagrams used in the analysis of high accident locations that have been traditionally constructed manually are now created by computers at the Okalahoma Department of Highways. This eliminates the necessity of collecting data by the traffic analyst. The source data is precoded and placed on magnetic tape. A user must have specific information to activate the program; namely, a county number, city number, control section number, mileage point of the intersecting street, and study period dates. The first program converts a technical location description into a nontechnical one. The second program creates an instruction file for the plotter. The article contains brief but more explicit information on equipment that can be used, execution techniques, core storage, output, and multiple studies. The two programs are written in COBOL programming language. They are currently being used to study major highways and intersections in urban areas, although expansion of the input data has been suggested to include rural intersections. Greater use of the system will depend upon engineering staff needs. It has brought about a reduction in the analytical staff at the Oklahoma Department of Highways.

• Corporate Authors:

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • Hagmann, L M
• Publication Date: 1974-12

Media Info

• Features: Figures;
• Pagination: 3 p.
• Serial:
  • Tire Science and Technology
  • Volume: 44
  • Issue Number: 15

Subject/Index Terms

• TRT Terms: Analysis; Computer programs; Crash diagrams; High risk locations; Intersections; Magnetic tapes; Traffic; Urban areas
• Uncontrolled Terms: Traffic analysis
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 00084710
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 2 1975 12:00AM