Low resolution versions of various maps are available on-line [22]. High resolution versions are available commercially. Machine-readable high resolution maps are not available, and the mapping and layout code are proprietary. The authors will attempt to lay out interesting data sets on request, though the programs are tuned for the Internet data and layouts of significantly different types of data have not been satisfactory so far.
Our databases are also available at our web site, both the label database and the route database. Historic and current databases are available, along with the explanation of the database format from appendix A.