The stated preference (SP) methods used in transport research refer to a broad class of methods based on the study of individuals' responses in hypothetical contexts consisting of one of more travel alternatives typically defined in terms of combinations of levels of attributes. This chapter traces the development of SP methods in transport research, discusses some important recent developments in both the application and methodology of SP studies and highlights key research directions for the future. Issues discussed include a) the valuation of attributes, b) the derivation of preferred transport packages and c) the estimation of travel behaviour responses. Recent developments include a) the development of choice-oriented decision tasks, b) the combination of SP, RP and attitudinal data, c) developments in design procedures and d) the use of computer-based interviewing.
Samenvatting