Estimation Of Accident Reduction Effect Of Cooperative Safety System Using Actual Road Test Data

This paper reports on a study undertaken to investigate the impact of using communication technology to prevent accidents at intersections, particularly accidents involving pedestrians and motorcycles. The authors describe the method of calculating the effect of providing the traffic signal information of the Infrastructure Cooperative System. The authors do not use simulation, but calculate their results from field data collected in 2006 - 2007. Topics include the estimation formulation used to measure the accident reduction effect; the target scenario matching rate; determining the reduction rate of potentially dangerous driving; the infrastructure penetration rate and the on-board unit (OBU) penetration rate; and the signal data utilization functions of the Infrastructure Cooperative System. With tested system specifications, when compared with stopping behavior, no changes were identified in driving behavior such as deceleration starting point. However, there was a reduction in the number of incidents of failure to stop at red lights at intersections where stopping behavior was observed. The authors surmise that the system may have had an effect on driver psychology. The test also showed a near miss reduction rate of at least 96%.


  • English

Media Info

  • Media Type: CD-ROM
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 11p
  • Monograph Title: ITS Connections: Saving Time. Saving Lives

Subject/Index Terms

Filing Info

  • Accession Number: 01142019
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 5 2009 7:06AM