Structures of commitment in mode use: a comparison of Switzerland, Germany and Great Britain |
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Authors: | A Simma K W Axhausen |
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Institution: | IVT—Institute of Transportation, Traffic, Highway and Railway Engineering, ETH—Honggerberg, 8093 Zurich, Switzerland |
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Abstract: | Travellers commit themselves to particular behaviours through the ownership of cars and season tickets. They trade a large one-off payment for low or zero marginal cost at the point of use. It can be assumed that these commitments influence travel behaviour. To the knowledge of the authors there is no literature which addresses the choice between the commitment to the one or the other mode and its impacts on travel behaviour.The paper presents models using structural equation modelling to test a-priori hypotheses on the paths linking car-availability, season-ticket-ownership and modal usage. Modal usage is operationalised as the number of trips by car, public transport, or as the distances travelled by car or public transport. The models are based on three different surveys: Switzerland, Germany and Great Britain. The results confirm the dominance of car-availability, which drives the other variables, but the relationships are more complicated than generally assumed. |
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Keywords: | Car-ownership/availability Season-ticket-ownership Mode choice Interactions Structural equation modelling |
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