Observations show that travelers often prefer an Intercity (IC) station further away instead of a local station closer to the origin or destination. This preference for IC stations may be a result of observed level-of-service variables such as travel times and
service frequencies. However, unobserved attributes may have impact as well on
travel disutility such as availability of facilities, personal customer service or safety
feelings. This leads us to the hypothesis of a positive constant utility contribution of
the trip attribute IC-station.