Traffic has a number of environmental effects which justify research. Traffic is different from most other commodities, in that it is very dependent on spatial structures in the economy. Transport is a derived demand, since it is only seldom purchased because of its own value, but is instead purchased to enable consumption or production of other goods. Therefore, the amount and character of traffic is very dependent on regional economic structure, involving location and investment by firms, location of households, etc.
The prime aim of the project is to create a decision-making tool for use with transport policy initiatives and transport sector projects, which takes into account both the economic and the environmental consequences of alternative decisions.
The decision-making tool is constructed through linkage of three existing models (National Transport Model, the Interregional Economic Model LINE, and the Environmental and Economic Impact Assessment tool SEAM). A conceptual integrated model is elaborated and tested and applied in a case study.
A transport sketch model has been developed (TSM model). With the use of this, a case study of road pricing in Denmark has been carried out an evaluated.
The results of the projects have been used in the regional economic model LINE.