The Times They Are A-Changin': What Do the Expanding Uses of Travel Time Portend for Policy, Planning, and Life?

Personal travel is becoming increasingly passengerized,'' with new travel products and services being enabled by the same technology that is expanding the ways in which travel time can be used. This paper explores the implications of these changes from the traveler's perspective. A typology of possible changes in travel time is presented, followed by an extended discussion of reasons why, and mechanisms by which, travel time could, in particular, increase. Some key research needs are suggested and concluding reflections offered.