03021nas a2200253 a 450000500170000000800410001703500150005810000260007324500870009926000670018630000430025349000330029650001410032950200580047052018790052865000150240765000400242270000370246270000510249970000470255071000400259781000650263785600650270220260817162407.0260325s20249999th u  ms tm   000   eng d  a.b124942761 aTanawan Sutantaviboon10aAnalysis of motorcycle riders' gap acceptence at unsignalized mid-block crosswalks  aPathum Thani, Thailand :bAsian Institute of Technology,c2025  a118 leaves :bill.+e1 online resource1 aDissertation ;vno. TE-24-01  aA dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Transportation Engineering  aThesis (Ph. D.) - Asian Institute of Technology, 2025  aIntroduction: Unsignalized mid-block crosswalks can often lead to conflicts between  motorcyclists and pedestrians, especially in Thailand which has a high number of  motorcycles using the road system. Generally, motorcyclists must yield to crossing  pedestrians. However, many pedestrian-motorcycle crashes occur due to motorcyclists  failing to stop or yield. This risky decision on the part of motorcyclists is caused by too  short gap acceptance, which can cause injury or death to both the motorcyclist and  pedestrian. This study aims to investigate motorcyclists{u2019} critical gap when faced with  pedestrians crossing at unsignalized mid-block crosswalks and to determine the  significant factors that influence motorcyclists{u2019} decision to pass unsignalized mid-block  crosswalks. Method: The critical gap was estimated using Raff{u2019}s Method, Wu{u2019}s  Method, and binary logistic regression, while the influencing factors for motorcyclists{u2019}  decision were analyzed using the binary logistic regression model. Results: From the  results of this study, the critical gaps of motorcyclists when faced with a single  movement of a pedestrian are very short (0.54-1.07 seconds). Factors that influence  motorcyclists{u2019} whether to stop at crosswalks were found to include headway time,  direction of pedestrians{u2019} movement, presence of vehicles nearby, pedestrian crossing  locations, number of crossing pedestrians, and crosswalk colors. The interaction effect  between crosswalk colors and the type of median was also significant to the model.  Conclusions: The short critical gap reflects the risky behavior of motorcyclists in  Thailand. To improve the safety of motorcyclists and pedestrians, the findings of the  present study are very important to improve law enforcement and the geometric design  of unsignalized mid-block crosswalks.  0aCrosswalks 0aMotorcyclingxPsychological aspects0 aKunnawee Kanitpong,eChairperson0 aAmpol Karoonsoontawong,eExamination Committee1 aSantoso, Djoen San,eExamination Committee2 aAIT Scholarship,eScholarship Donor2 aAsian Institute of Technology.tDissertation ;vno. TE-24-01403Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B23821