03483nas a2200361 a 4500 20260817162222.0 260127s20259999th u ms t 000 eng d .b12472761 AIT Thesis no.TE-24-01 Nuttanicha Udtamamunee An investigation of young motorcyclists' behavior in Thailand using the modified motorcycle rider behavior questionnaire (MRBQ) Pathum Thani, Thailand : Asian Institute of Technology, 2025 85 leaves : ill.+ 1 online resource Thesis; no. TE-24-01 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Transportation Engineering Thesis (M.Eng.) - Asian Institute of Technology, 2025 Thailand faces a significant issue with motorcycle use, with over 22 million registered vehicles in 2023, accounting for 51% of all registered vehicles. Motorcycle crashes account for 80.4% of road traffic fatalities, with the highest death rate among ASEAN countries. A study aims to examine the relationship between rider characteristics and actual riding behavior, and to assess what risk behavior factors were associated with self-reported crash involvement and fine offenses. This study focuses on the risk behavior, aggressive behavior, and risk perception of young motorcyclists in Thailand using focus groups and questionnaires. The questionnaire consisted of four main sections: personal, vehicle, and riding information, self-reported crash involvement and fine offenses, perception of unsafe riding behaviors, and riding behaviors.Data analysis was performed using the STATA program, including descriptive statistics, principal component analysis, Pearson's correlation coefficient, multiple linear regression, and binary logistic regression. The study found that 70% of young riders under 18 use motorcycles over the legal engine size, often report unsafe modifications, and lack proper licenses. Most riders use rear-heavy braking due to misinformation or lack of proper riding knowledge. Young riders are more likely to engage in speed-related risky behaviors, such as rider anger, unsafe surfaces, and unhelmeted passengers. They also reported higher traffic errors, speed violations, stunts, and safety violations. Young riders also reported higher aggression scores, indicating greater emotional reactivity and impulsive behavior. They were more likely to report crashes and near-crashes than adult riders, with higher speed violations and past traffic fines. Young riders aged 18-24 were more likely to report fines than adult riders. Motorcyclists Thailand Attitudes Behavioral assessment Thailand Kunnawee Kanitpong, Chairperson Bhatt, Ayushman, Examination Committee Ampol Karoonsoontawong, Examination Committee Royal Thai Government Fellowship, Scholarship Donor Asian Institute of Technology. Thesis; no. TE-24-01 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B23366 .b12472761 mnarc a 260130 0 260128 m h a 0 mnarc 67 Barcode : - CREATED : 2026-01-27 RECORD # : i13569430 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 4330 4330 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.TE-24-01 2026-08-17 16:22:22 1 2026-08-17 67