Study title

Objective The objective of this study was to generate a new and consistent set of values for changes in travel time, reliability and comfort for the various modes of transport in The Netherlands. These values serve as key input for Social Cost Benefit Analyses (SCBA) for mobility projects. Scope Compared with the previous executed Dutch VTT study date back from 2013, national values of travel time have been laid down for walking and cycling in this study for the first time. The value of travel time for transport to and from airports (in The Netherlands) for travel by airplane have also been determined for the first time. Also new are the values of travel time of comfort. The comfort multipliers indicate the level of comfort in relation to passenger volume for train and BTM, and the comfort of the walking and cycling infrastructure. Methodology The national averaged value of travel time (VTT) and value of travel time reliability (VTTR) for passenger transport are derived from Stated Preference (SP) choice experiments. A questionnaire is distributed among a target audience, containing questions regarding trip characteristics, personal characteristics and several choice experiments. In the experiment, respondents are asked to choose between hypothetical alternatives, each describing a trip in terms of travel time, travel cost and possibly other characteristics. Respondents are asked each time which alternative is preferred. From these choices the value of travel time and travel time reliability can be inferred. The VTT and VTTR values are subsequently estimated by employing discrete choice models: models aiming to explain the observed choice made by the respondent in the experiment. Coefficients and interaction factors are added to these models to improve the model fit: boost the model's ability to explain the data. Once values have been obtained from these models, these number are applied to the sample of respondents to calculate their respective VTT/VTTR....