Towards a Planning Decision Support System for Low-Carbon Urban Development Ivan Blečić, Arnaldo Cecchini, Giuseppe A. Trunfio - Department of Architecture, Planning and Design, University of Sassari, Alghero Serena Marras, Donatella Spano - Department of Economics and Woody Plant Ecosystems,University of Sassari Matthias Falk, David R. Pyles - Land, Air and Water Resources, University of California

1. A Modelling Framework to Support Planning for Low-Carbon Urban Growth

7. Constrained CA simulation of land use change neighbourhood effect (interactions between urban functions) Transition potentials Land use at time t Land use at time t+1 Land use requests in the area Planning regulation, Accessibility, suitability, etc.

12. Dynamic traffic assignment: moderate congestibility hypothetical land use which is source and destination of vehicular trips

13. Dynamic traffic assignment: h igh congestibility

14. Dynamic traffic assignment: land use change new development contraction

15. An in-Progress Application Example: Florence

16. Cellular Automata Input GIS layers Terrain slope Land cover Accessibility Street network Zoning/regulations Accessibility of industrial/commercial areas accessibility of residential areas

17. Example of future land uses projections (Florence)

18. Example of WRF-ACASA output for Florence (Baseline scenario)