The water transportation has diminished its role due to the widespread development of land transport network that can be obviously seen in Figure 1. Prior to present the water transportation in Bangkok, it is best perhaps to highlight the current situation of the public transportation systems in Bangkok. Presently, Bangkokians are able to commute in the city by various public transport modes. A variety choice of traveling either by land or water transport is accessible due to the geographical advantages of the Chao Phraya River that plays the role of the major river of Bangkok.