Design principles of safe navigation environment in Three Gorges Reservoir Area are analyzed abstractly and designed realization process in a virtual reality simulation system based on multi-function beacons, environment dynamic forecast model, GIS, AIS and virtual reality technology. On that basis, the system of the hardware frame and software structure is then constructed. The system gives a result of the judgment for the comfort level of navigation environment so that it is able to provide the administrative authority with technical support for decision making. The system has a great significance for enhancing the prediction on the safety of navigation environment. © 2011 Published by Elsevier Ltd.
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