Exploring motorcyclist injury severity in approach-turn collisions at T-junctions: Focusing on the effects of driver's failure to yield and junction control measures

Chih Wei Pai, Wafaa Saleh

Research output: Contribution to journalArticle

43 Citations (Scopus)


Research has suggested that motorcyclists involved in approach-turn crashes were much more injurious than any other crash-type. This paper investigates the determinants of motorcyclist injury severity resulting from such crash types that occurred at T-junctions, with emphasis on the effects of driver's failure to give way and various junction control measures. The ordered probit models of motorcyclist injury severity were estimated using the data extracted from the STATS19 accident injury database (1991-2004). Approach-turn collisions are categorised into two sub-crashes based on the manoeuvres motorcycles and vehicles were making prior to the collisions. The modelling results uncover several important determinants of injury severity: for example, injuries appeared to be greatest when an approaching motorcycle collided with a turning-right vehicle, and such effect was found to exacerbate injury severity when stop, give-way signs and markings controlled the junction. A turning-right driver that was identified to fail to yield to an approaching motorcyclist was also found to severely injure the motorcyclist. The findings of this study may offer guidelines for further research and provide some important preliminary evidence for the development of countermeasures that may help prevent the specific hazards from occurring.

Original languageEnglish
Pages (from-to)479-486
Number of pages8
JournalAccident Analysis and Prevention
Issue number2
Publication statusPublished - Mar 2008
Externally publishedYes



  • Approach-turn collision
  • Driver's failure to yield
  • Junction control measure
  • Motorcyclist injury severity
  • T-junction

ASJC Scopus subject areas

  • Transportation
  • Safety Research
  • Law
  • Human Factors and Ergonomics
  • Public Health, Environmental and Occupational Health
  • Safety, Risk, Reliability and Quality
  • Chemical Health and Safety

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