Using On-board Video Data for Safety Analysis – An Analysis of Right Hook Crashes Involving Large Buses at Signalized Intersections

Bus right hook (BRH) crashes at intersections are one of the most common types of crashes for bus carriers, which could account for as high as 30 percent of total crashes. A BRH crash occurs when a bus and another vehicle traveling in the same direction head into an intersection, but the bus driver makes a right turn across the path of the through-moving vehicle, and both vehicles collide. This study responds to the research needs to identity factors associated with BRH crashes by utilizing in-vehicle data recorder (IVDR) data. A four step analysis procedure was developed, including (1) video data coding, (2) crash sequence analysis to identify crash contributing factors, (3) a case-control study to examine the relationship between the crash contributing factors and crash occurrence, and (4) modeling crash risk in terms of the crash contributing factors to better understand the crash generating process. It was found that one of the most significant crash contributing factors in BRH crashes is the bus driver’s vision transition time when bus drivers are making right turns. The transition time was estimated to increase the BRH crash risk by 220 percent. A safety frontier analysis was also constructed to describe how a BRH crash occurs. Several recommendations are discussed based on the results to further develop countermeasures to reduce this type of crash.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee ANB70 Standing Committee on Truck and Bus Safety.
  • Corporate Authors:

    Transportation Research Board

  • Authors:
    • Wu, Kun-Feng
    • Lin, Po-Jui
  • Conference:
  • Date: 2019


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 18p

Subject/Index Terms

Filing Info

  • Accession Number: 01697687
  • Record Type: Publication
  • Report/Paper Numbers: 19-04726
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 7 2018 9:34AM