Kao, Chih-hung creator Yordphol Tanaboriboon Chairperson Mori, Hiroshi Examination committee Shimazaki, Toshikazu Examination committee R. O. C. Government Scholarship donor text th Bangkok Asian Institute of Technology 1992 monographic eng 139 leaves : ill. This research study foc u ses on t he traffic accident studies along t he t wo se l ected roadways , Chalerm Ma ha Na khorn Expressway and Vipavadee Rangs i t Road (Highway No.31) in Bangkok. The primary objective of this study is to reveal the accident c haracteristics a nd acci dent exposu re. The secondary objecti ve is to identify the potential ly h azardous l ocations. Then the resu lts of the accident analysis of t hese two roads were compared. Furth ermore , t h e comparison was a l so extended to i n clude another country ' s expressway system. Th e a n alyses of traffic accidents in Thail and were compared with the Republic of China (R.O.C . ) ' s accidents on her expressway network . The resul ts i ndicate that t h e traffic accidents are highly related to t he traffic volumes. The primary acciden t cause on t he expressway is drivers ' carelessness , while on the highway it is over-speedi ng. Car i nvol vements have t h e highest occurrence percentages on both of t hese two roads. Through the acciden t exposu re a n a l yses , the highway shows a higher accident exposure than the expressway. After comparing the Thai and ROC ' s expressways , the a na l yses of t h e resul ts s how t h at with the except i on of t h e fatality rate, Thai accident exposure is h i gher than t h e ROC ' s. By using the Rate Quality-Control Method to identify t he hazardous locations, the resul ts revealed t hat on the expressway, 20% of the entire length has been identified as hazardous locations, while 32% of the h ighway has been identified as hazardous. A thesis submitted in partial f ulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology Traffic accidents Research Thailand Bangkok Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B16907 http://203.159.5.9/ait-thesis/detail.php?q=B16907 241198 20260819084930.0