COUPLED MICROSCOPIC MODELLING OF TRAFFIC DEMAND AND TRAFFIC FLOW ON A CITY LEVEL Daniel Krajzewicz Institute of Transport Research, German Aerospace Center

Microscopic models of traffic demand and traffic flow have reached a maturity which allows their usage for investigating large-scale effects of measures and/or developments. In microscopic models, every participant is described individually by a set of attributes. Demand models use attributes such as the age, employment state, sex, home location, and the availability of mobility options for computing the person’s mobility in a region defined by activity locations and mode-dependent travel times. Traffic flow models replicate the progress of individual users – may they be vehicles or individual persons as well – through a given transportation network. As in demand models, every participant is defined using a set of attributes, mainly ones that describe its physical attributes, such as the maximum acceleration/deceleration capabilities, the maximum speed or the emission class.