A Review of Activity-Based Travel Demand Modeling

Activity-based models belong to the third generation of travel demand models, which have received extensive interest in the past three decades. Activity-based modeling of travel demand treats travel as being derived from the demand for activity participation. This paper presents an overview of recent and on-going contributions made by "activity-based approaches" to forecast travel behavior. First, a brief history of two travel demand approaches is introduced. Then, four modeling methods in activity travel analysis are reviewed. On top of that, essential applications of this approach for addressing contemporary policy and planning issues are provided. Finally, some of the directions are highlighted for future development of activity-based analysis.