The Mobility and Transport Microcensus (MTMC) is the largest Swiss travel diary survey. In its 2021 edition, questions on attitudes towards transportation policy were for the first time conducted as stated ranking and stated choice experiments. These question types forced respondents to define priorities between investments and to find a trade-off between (1) government investments to improve the Swiss transportation system and (2) policies financing these investments. This paper presents the development of the new questionnaire, the tested policy measures and outlines how data on attitudes towards transportation policy were collected in the main survey in 2021 and how they will be analysed.