Travel demand models have been providing decision-support for transportation infrastructure planning over the past half-century. However, with limited opportunities for new highway and transit infrastructure in congested areas, “demand-oriented” policy measures (e.g. travel demand management), which allow for more efficient usage of existing road and transit capacity, require improved methods o...

Rapid urbanization and increasing demand for transportation burdens urban road infrastructures. The interplay of number of vehicles and available road capacity on their routes determines the level of congestion. Although approaches to modify demand and capacity exist, the possible limits of congestion alleviation by only modifying route choices have not been systematically studied. Here we coup...

The modal split model is one of the steps of the classical four-step travel demand planning. Predictive, descriptive, and prescriptive modal split models are essential to make a balance between travel demand and supply. To calibrate these models, it is necessary to detect and employ influential independent variables that are related to characteristics of travel modes, individual and family attr...

Activity based travel demand models are becoming essential tools used in transportation planning and regional development scenario evaluation. They describe travel itineraries of individual travelers, namely what activities they are participating in, when they perform these activities, and how they choose to travel to the activity locales. However, data collection for activity based models is p...

An understanding of patient mobility, international patients and medical tourism includes supply and demand side considerations. As well as micro-level reports of motivation and satisfaction we must acknowledge broader system-level dynamics. Exploring these may unearth more complex geographies of patient travel.