Integration of LUTE models with GIS

Integrated land use-transport and environment (LUTE) models have been extensively developed over the last two decades. However, most LUTE models are developed using their own database structure and data input/output facility without integrating with the geographical information system (GIS). The major drawbacks of these LUTE models are that their databases are not commonly structured and lack common geo-referencing systems, which make them difficult to share, aggregate and integrate from a variety of sources. New developments in GIS technology and powerful PCs have resulted in widespread implementation of GIS for the solution of spatial problems. However, many applications only focus on the graphics display of the GIS without network and spatial modelling and analyses. With LUTE modelling capability and GIS technology, there will be great potential benefits for developing an integrated LUTE-GIS modelling system. The integrated system can not only alleviate the data acquisition, data input and data visualisation problems, but also enhance the efficiency and accuracy of the LUTE models. This paper discusses methodologies of LUTE-GIS integration. A prototype LUTE-GIS modelling system is formulated based on an existing LUTE model (CityPlan) and GIS components to show the feasibility and benefits of the integrated system.