The Rockfall Management System (RMS) currently being developed for the Tennessee Department of Transportation (TDOT) includes several features that pertain to how data are collected, visualized and distributed. Field personnel can record geologic data, as well as other characteristics of rock cuts, on a Personal Digital Assistant (PDA) that uses interactive dropdown menus for rapid and consistent input. Hazard ratings, digital photographs, GPS coordinates, and other data are downloaded from the PDA into a centralized database, and are then distributed throughout TDOT using a web-based GIS. The use of spatial analysis as a means of locating potentially hazardous rockcuts is described. An example of spatial analysis is given, in which digital elevation models (DEM) are used to generate slope and aspect models which are then compared with roads, geology, and hazard rating layers to improve the ability to locate potentially hazardous rockcuts in Tennessee counties.
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