Difference Between Male and FemDifference Between Male and Female Motorcyclist-Injury Severity: Accommodating Unobserved Heterogeneity in the Dataale Motorcyclist-Injury Severities: Accommodating Unobserved Heterogeneity in the Data
Difference Between Male and Female Motorcyclist-Injury Severities
Keywords:
Motorcyclist, Injury Severity, Gender, Random Parameter, Unobserved HeterogeneityAbstract
In Thailand, the frequency of crashes and mortality rates are significantly higher for male motorcyclists than for their female counterparts. This study aims to investigate the effect of various associated risk factors on motorcyclist-injury outcome separated by gender. Using motorcycle-crash data in Thailand from 2016 to 2019, random parameter binary probit with heterogeneity in mean and variances was employed to explore the effects of a wide range of risk characteristics on severity of different motorcyclist gender. In the male model, significant factors are improper overtaking, riding under influence, inner-lane crashes, four-lane crashes, crashes on road with no median, flush median, depressed median, and barrier median, crashes within public area, crashes on wet road, nighttime crashes on lit or unlit road, non-rush hour crashes, evening crashes, weekend crashes, and single-motorcycle crashes. In the female model, significant factors are fatigued rider, three-leg intersection, and midnight/early morning crashes). However, some factors generated contradicting effect between male and female such as hitting a sudden crossing object, U-turn crashes, and hitting passenger car. The split in model estimation between gender is particularly important that could potentially assist policymaker, safety professionals, practitioners, trainer, government agency or highway designer in future planning and serves as guidance for mitigation policies directed at safety improvement for motorcyclist.
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Author Biographies
Chamroeun Se, Institute of Research and Development, Suranaree University of Technology
Chamroeun Se (Cambodia), Ph.D., is a post-doctoral researcher in the Institute of Research and Development and a teaching assistant at the Department of Transportation Engineering at Suranaree University of Technology. He holds a B.Eng in Civil Engineering from Paragon International University, Phnom Penh, Cambodia, and a M.Eng and Ph.D in Transportation Engineering from Suranaree University of Technology, Nakhon Ratchasima, Thailand. He has researched and written papers focusing on the temporal and spatial instability of factors associated with crash injury severity. His research interests include spatio-temporal crash injury analysis, transportation safety, driving behavior analysis, transportation planning, and econometric and statistical modeling.
Panuwat Wisutwattanasak, Institute of Research and Development, Suranaree University of Technology
Panuwat Wisutwattanasak (Thailand), Ph.D., is a post-doctoral researcher in the Institute of Research and Development and a teaching assistant at the Department of Transportation Engineering, Suranaree University of Technology. He holds a B.Eng., M.Eng., and Ph.D. in Transportation Engineering from Suranaree University of Technology, Nakhon Ratchasima, Thailand. His expertise and interests are centered on the use of the willingness-to-pay approach, monetary factors in road safety, and associated factors. His other research interests include statistical analysis, transportation safety, transportation logistics, and tourism management.
Thanapong Champahom, Department of Business Administration, Faculty of Business, Rajamangala University of Technology Isan
Thanapong Champahom (Thailand), Ph.D., is an assistant professor and lecturer at the Department of Business Administration, Rajamangala University of Technology, Isan. He holds a B.Eng., M.Eng., and Ph.D. in Transportation Engineering from Suranaree University of Technology, Nakhon Ratchasima, Thailand. His research interests include transportation safety, road safety, transportation planning, public transportation, logistics management, and injury severity research.
Sajjakaj Jomnonkwao, Institute of Engineering, Suranaree University of Technology
Sajjakaj Jomnonkwao (Thailand), Ph.D., is an assistant professor and lecturer at the Department of Transportation Engineering at Suranaree University of Technology. He holds a B.Eng., M.Eng., and Ph.D. in Transportation Engineering from Suranaree University of Technology, Nakhon Ratchasima, Thailand. His research interests include driver behavior, tourism logistics, transportation safety, transport policy, transportation planning, and statistical modeling.
วัฒนวงศ์ รัตนวราห, สาขาวิชาวิศวกรรมขนส่ง สำนักวิชาวิศวกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีสุรนารี
Vatanavongs Ratanavaraha (Thailand), Ph.D., is a professor in the Department of Transportation Engineering at Suranaree University of Technology. He holds a B.Eng. in Civil Engineering from Chulalongkorn University, Bangkok, Thailand, a M.Eng. in Transportation Engineering from the Asian Institute of Technology, Bangkok, Thailand, and a Ph.D. in Transportation Engineering from Vanderbilt University, Nashville, Tennessee, USA. His research interests include transportation safety, road safety, transportation planning, public transportation, accident cost analysis, and hazardous location identification.
