Zaman, Tarkish creator Surachet Pravinvongvuth Chairperson Nakatsuji, Takashi Examination Committee Kunnawee Kanitpong Examination Committee text series technical report th Pathum Thani, Thailand Asian Institute of Technology 2016 continuing eng 144 leaves : ill. This researchsummarizes the assessment of the parameters that could play important role in terms of affecting the vehicle operating cost. For this case six indices are selected that are speed, number of lanes, fuel costs, annual average daily traffic, vehicle prices and roughness. Criteria defining the economic aspects of road users have been discussed. A review of studies onthe indices affecting the road user costs along with their findings has been presented. It is observed that not all the indices have effect on the operating costs of vehicles. The study includes all the possible data that could be collected within limited timeframe fromthe present scenario of Thailand so that the analysisresults could make some specific sense. Study includes the use of key software HDM-4 torun the analysis. The analysis results and interpretation of the results are carried out in Microsoft excel.Figures and graphs are plotted based on the analysisresultsgained from the software. A research submitted in partial fulfillment of the requirements for the degree of Master of Engineering inTransportation Engineering, School of Engineering and Technology Research report (M. Eng.) - Asian Institute of Technology, 2016 Vehicles Evaluation Thailand Automobiles Cost of operation Vehicles Cost of operation Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B01680 http://203.159.5.9/ait-thesis/detail.php?q=B01680 190425 20260817163733.0