Computer graphics in urban and environmental systems

The key role played by computer graphics in urban, regional, and environmental information systems is surveyed by reference to specific examples. While the interactive cathode-ray tube terminal is found to be the most valuable medium, other output devices such as printers and plotters are discussed as well. Elements of computer cartography and data base organization are introduced, followed by discussions of urban information and transportation network design systems, a regional analysis system, and air and water quality information systems. Specific recommendations are given for further research in data base design and display techniques, and for promising new hardware for use in geographically distributed data systems.