Typical Urban Day Trips by Modes, Origins and Destinations

Urban trips have a wide variety of purposes. The above figure illustrates a typical set of daily trips associated with one individual. Although the individual is directly involved in passengers movements (in this case as the driver), freight trips are also derived from all these daily activities.

• Passengers trips. The first trip is concerned about commuting to the place of work. It is combined with dropping off a child at school and then driving to work. At lunchtime, a walking trip to a nearby restaurant is generated. Then, a drive back home and a trip to a shopping mall in the evening where consumption (grocery) and leisure (cinema) activities are taking place.
• Freight trips. Many freight trips can be derived from daily home-based and work-based activities. For instance, garbage can be picked up from residences and parcels can be dropped and picked from an office. The function of consumption also generates substantial flows of freight. For instance, the restaurant and the shopping mall have to be supplied, often on a daily basis.