Whether it's monitoring train locations, tracking flight paths and noise levels, planning for highway maintenance, or improving bus routes, GIS helps private organizations and public agencies improve safety and reduce costs. The Esri Press volume Transportation GIS by Laura Lang presents a dozen case studies illustrating how GIS is being used in the reengineering of transportation organizations. Transportation GIS (ISBN 1-879102-47-1) is available for purchase at www.esri.com/esripress or by calling 1-800-447-9778.