The term "stated preferences" refers to a wide array of possible ways of asking consumers about preferences, choices, ways of using options, frequencies of use, and so forth. Transportation researchers have a long interest in the analysis and modelling of stated-preference (SP) data; and were SP theory and methods pioneers. Similarly, transportation remains a popular applications area in other disciplines, notably marketing and environmental and resource economics, now active in the field. Recent summaries of transportation SP work can be found in Fowkes (1998) and Hensher (1994). The authors do not re-review these previous summaries, but instead offer an historical perspective on the evolution of the field, discuss some promising current directions, and devote particular attention to state of the art in SP experiment design.
Samenvatting