Estimation of Motorcyclist Injury Severity and Evaluation of Motorcycle Related Safety Strategies, a California Study

Fast growing demographics of motorcyclist fatalities aged less than 25 and 45 to 54 are conspicuous in California. The intent of this study was to quantitatively examine factors associated with motorcyclist fatalities and assess the relevant improvement strategies for motorcyclist safety with an emphasis on the young and older aged motorcyclist victims. To accomplish this goal, injury severities for young and older motorcyclist victims were separately estimated using multinomial logit models and pseudo-elasticity with data from five-year motorcycle involved collisions. The results were compared with motorcyclists aged 35 to 44, a middle aged group that shows a consistent trend of fatalities. As a result, key findings include: types of driver and passenger, violations related to speeding, turning and wrong side of road, and roadway conditions did not significantly affect motorcyclist fatalities throughout all three age groups; motorcyclists under alcohol/drug influence and collided with trucks were more likely to be fatally injured regardless of age groups; collision types were found to increase either young or older motorcyclist fatalities; no helmet use, intersection and dark street without light were significantly and strongly associated with increased older motorcyclist fatalities; the middle aged motorcyclists were more likely to be fatally injured when drifting off the lane, on opposed lane, or during twilight condition. Based on the statistically significant factors identified, the following safety strategies are convinced as effective methods to reduce motorcyclist fatalities: public education of sobriety, enforcement of heavy vehicle violation, helmet use promotion, clear roadway design and street lighting system, and motorcyclist training.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee ANF30 Motorcycles and Mopeds.
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Jung, Soyoung
    • Qin, Xiao
    • Yoon, Yoonjin
  • Conference:
  • Date: 2013

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 16p
  • Monograph Title: TRB 92nd Annual Meeting Compendium of Papers

Subject/Index Terms

Filing Info

  • Accession Number: 01475245
  • Record Type: Publication
  • Report/Paper Numbers: 13-1631
  • Files: TRIS, TRB, ATRI
  • Created Date: Mar 14 2013 9:36AM