Multimodal accessibility and the interest towards inter-urban carsharing services:

The underlying idea of the paper is that a generic traveller is first interested in carsharing, then he/she subse-quently decides to join the service and to use it. Moreover, unlike urban carsharing services, inter-urban car-sharing can be more significantly affected by the transport modes available and by the level of service sup-plied. In this conceptual context, the present paper investigates the most effective attributes able to explain and measure the interest towards an inter-urban carsharing service. In particular, the paper aims to demonstrate that users’ interest significantly depends on the multimodal accessibility currently supplied and on the users’ mode choice behaviour. To this aim, the interest in carsharing was investigated through an “ad-hoc” stated preferences survey and modelled through the calibration of the random utility theory. Different accessibility indicators were specified and tested, from simple ones (distance, travel time, generalised cost) to more com-plex and behaviourally coherent ones (Expected Maximum Perceived Utility).