1.1 Background of the Study
Travel behavior is the way people move in the public realm by all means of transport and for all purposes. Some of the activities people want to engage in are separated by space, which requires people to travel. The choices they make in order to travel are based on options, constraints, habits, and opportunities. For instance, how people travel to work (by car, bus, subway, or walk), the time they leave, and the duration and type of stops they make on the way are important aspects of travel behavior.
The frequent use of private cars in urban areas has a significant impact on the environment as well as on human health. Despite the fact that technical improvements, such as catalytic converts and fuel efficient engines, have decreased the pollution per vehicle, the environmental gains have been lost through the more extensive use of private cars (National Committee for Agenda 21, 1997). Other increasing problems concern auditory pollution, traffic accidents, excessive land use and the depletion of natural resources (Kolbensvedt et al., 1996).