With regard to willingness to pay (WTP) and ability to pay (ATP) for using new
travel modes e.g. Mass Rapid Transit (MRT) and BRT can guide governments to justify
suitable fare structure policy. WTP and ATP have been studied in several services to provide
suggestion on service charge; for example, in water supply service, health care service,
electric service, and education service. In transport sector, there is still not clear on ATP for
transport service. On the other hand, there are a number of studies on the values of time and
transport service, which can be interpreted as willingness to pay for time saving and service.
Thus, a study result from this paper on WTP and ATP for applying on MRT in Bangkok,
which may be a guideline for other cities as in developing countries.