This paper provides a brief overview into the development of a modelling system for use in transport planning in which environmental impact and pollution levels can be incorporated into the basic process. The method draws on models for transport network analysis and for fuel consumption and emissions modelling. Models permitting a) the examination of alternative policies and broad strategies for metropolitan travel and b) alternative vehicle and fuel technologies are included in the system. The paper indicates how these procedures are being integrated into an environmental impact assessment package, or supermodel known as IMPAECT. This consists of 4 PC-based computer models linked through a common data structure. These models are a traffic network model, a vehicle energy and emissions model, a pollutant dispersion model and a land use impact model. The modular design of the supermodel allows the use of alternative components to suit local needs.
Samenvatting