Mise en place d'enquêtes par préférences déclarées dans le cadre de projets d'étude relatifs au secteur des transports de personnes
Stated preference surveys are based on choice sets composed by the analyst and proposed to some respondents. Each situation of the choice set is the combination of pre-determined attributes. While declaring the choice they would make if they were confronted to the same situation in reality, respondents reveal their preferences and their perceptions of the attributes. This Phd work presents the results of three stated preference surveys applied in the camp of public transportation. All surveys form a part of more general research programs handled for the sake: of the French railway operator, known as the SNCF (2006/2007) ; of the French railway network administrator, called RFF (2008) ; and of the French research, experimentation and innovation program in land transport, named PREDIT (2010). The use of stated preference methodology was required in order to deal efficiently with the issues of each of those research programs (respectively treating of social pricing ; train supply policy ; fuel rationing policies). The conception, the implementation and the analysis of the surveys have all been carried out during this Phd work in order to warranty control of each parameter and thus high quality results. In accordance with program research objectives, different econometrics treatments have been implemented. This Phd work shows how stated preference surveys may deal with different complex issues and therefore promote the use of this method. Each of these studies have finally strengthened the conviction that stated preferences constitute an efficient and complete tool.