Tables of expected values for accident analyses at intersections in the Atlanta metropolitan area were developed in this research. The expected values are defined as the average expected number and the 90th and 95th percentiles of accidents. These expected values provide for traffic engineers or accident analysts a quick method to identify whether a particular intersection is probably more hazardous than others of its type and volume level. An intersection with a number of accidents greater than the 90th or 95th percentile for its kind warrants further detailed analysis including an inspection of the site and a close analysis of accident reports and collision diagrams. The expected value method saves the time of the traffic engineer or accident analyst and concentrates attention on those intersections with specific problems that may be correctable through the erection of warning signs, improvement of signal timing, removal of obstructions to sight, relocation of utility poles, etc.


  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 127-131

Subject/Index Terms

Filing Info

  • Accession Number: 00711468
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 22 1995 12:00AM