Title

MULTIMODAL CHOICE SET COMPOSITION: ANALYSIS OF REPORTED AND GENERATED CHOICE SETS

Document Type

Journal Article

Publication Date

2004

Subject Area

planning - route design, planning - surveys, ridership - mode choice

Keywords

Travel surveys, Trade off analysis, Route selection, Route choice, Passenger trains, Multimodal transportation, Multimodal systems, Mode choice, Modal choice, Decision making, Comparison studies, Choice of transportation, Choice models, Alternatives analysis, Algorithms, Access

Abstract

Multimodal trips are common in today's travel and are expected to become more important. An individual embarking on a multimodal trip faces a number of choice dimensions, such as access and egress mode or modes, origin and destination railway stations, train service types, and transfer stations. For each of these choice dimensions, multiple alternatives are available. To gain insight into the structure and complexity of multimodal trips, a dedicated survey was conducted. Its results include detailed data on chosen trips and reported trip alternatives of 511 multimodal home-bound trips in which the train is the main transport mode. Furthermore, objective choice sets were generated for these respondents and compared with the chosen trips and the reported trip alternatives. It can be concluded that many alternatives are available to travelers, whereas only a limited subset of those alternatives is actually perceived. Even fewer alternatives are actually considered in the choice process. The obtained knowledge of the chosen trips and subjective choice sets can be used to improve choice set generation algorithms and to define strategies for modeling route choice in multimodal networks.