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This studyaimsexaminingimpactsofexpenditurespentby thevisitors forpassenger transport services on the Thai economy. The Tourism Input-Output Model 2013 for the twelve tourism sectors was developed to calculate the impacts of tourist spending on transportation and other interrelated tourism services in Thailand. Our results indicate that tourism transport service sector was the largest contributor in generating revenut in tourism industry which accounts for 46.5 percent of the total revenue. Among the four modes of Transportation: air transport, water transport, railroad transport and car transport, air transport is the most
revenue-generating mode in Thailand, but it has the lowest linkage with other sectors. Car transportgenerates,however, thehighest indirect revenues. Government shouldalsofacilitate
the accessibility to railroad transport as this is the mode with the highest tourism multiplier.