The paper is set out as follows. ‘‘The approach’’ section provides an overview of the
empirical approach, whilst ‘‘The stated choice experiment’’ section provides a brief summary
of the SC data and survey techniques, as well as how such a method is applied. Next, ‘‘The
modelling approach’’ section outlines how the data collected is analysed and ‘‘Sampling
design and size’’ section discusses the sampling strategy. ‘‘Empirical data’’ section provides
information related to the data collected before the model results are presented and discussed
in ‘‘Study results’’ section. A DSS is introduced in ‘‘A decision support system’’ section with
an emphasis on how the utility expressions with preference heterogeneity parameters and data
on population modal shares are embedded, and a number of indicate elasticity estimates are
presented. Concluding comments are provided in ‘‘Conclusions’’ section.