Abstract
The Advanced Traveler Information System (ATIS) has been applied in many countries because it has been proved as one of potential solutions to solve congestion problem and to improve the quality of driving. Providing drivers with additional traffic information, it is expected to influence their travel decision on route and destination selection, or even on cancellation of the trip. A number of studies have been conducted in order to improve the performance of ATIS in various ways, such as the setting of the system, the content of information, the accuracy of the information, etc. Yet the effectiveness of the system is heavily dependent on the driver's behavior and response to the given information. The behaviors are somewhat unique for specific individuals (cities). The primary objective of this study was to analyze the behavior of drivers in different Southeast Asian major cities; Bangkok (Thailand), Kuala Lumpur (Malaysia), and Singapore (Singapore), pertaining to changing route under influence of traffic information availability and travel situation. Users' characteristics including socio-economic and trip characteristic as well as the responses to traffic information were investigated through Revealed Preference. The results illustrate that the behavior of drivers in the three cities are different pertaining to the factors that affect them to change the route. Their socio-economic and trip characteristics play a role in determining their route changing behavior.
