We thank the Swiss regional planning authority (Bundesamt für Raumentwicklung) for the original input data. We also thank ETHZ and the Department of Computer Science for making the Beowulf Cluster Xibalba including its Myrinet partition available to us. Marc Schmitt does a great job in maintaining the Linux environment of the cluster. This work was funded by ETHZ core funding and by the ETHZ project ``Large scale multi-agent simulation of travel behavior and traffic flow''.