Abstract
In this paper, we investigate several aspects of small-sized converted pickup trucks in Metropolitan Bangkok. As one of the popular yet informal modes of transport, these pickup trucks were formerly registered for private usage, but many of them are running for hire illegally, picking up passengers and competing with other public transports. An extensive data collection was performed covering both operators and passengers in Bangkok area. In terms of supply, we examine the coverage areas, availability of such services, and existing competing modes. On the other hand, the demand is analyzed considering passenger trip characteristics and attitudes towards using the service. A statistical analysis of the supply-side and demand-side characteristics is presented. It is expected that findings could shed some lights into the nature of this unique transport service and could help transport planners and regulators understand important issues and propose a more appropriate regulatory framework for informal transport in order to achieve a more sustainable transport environment.
