UC Davis Institute of Transportation Studies

The aim of this study was to explore different approaches to modeling individuals’ time and money allocations to travel. The authors consider three categories of activities: mandatory (e.g., travel to work); maintenance (e.g., travel for food shopping or medical appointments), and discretionary (e.g., travel for social or recreational activities). In their report, the authors discuss five different approaches to disaggregate modeling of time and money allocations to travel and activities, including four statistical estimation techniques. They find that no single approach to modeling travel time and money expenditures is perfect, noting each has pros and cons.