Issue No.06 - June (2012 vol.18)
D. Wilkie , Dept. of Comput. Sci., Univ. of North Carolina at Chapel Hill, Chapel Hill, NC, USA
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TVCG.2011.116
There exists a vast amount of geographic information system (GIS) data that model road networks around the world as polylines with attributes. In this form, the data are insufficient for applications such as simulation and 3D visualization-tools which will grow in power and demand as sensor data become more pervasive and as governments try to optimize their existing physical infrastructure. In this paper, we propose an efficient method for enhancing a road map from a GIS database to create a geometrically and topologically consistent 3D model to be used in real-time traffic simulation, interactive visualization of virtual worlds, and autonomous vehicle navigation. The resulting representation provides important road features for traffic simulations, including ramps, highways, overpasses, legal merge zones, and intersections with arbitrary states, and it is independent of the simulation methodologies. We test the 3D models of road networks generated by our algorithm on real-time traffic simulation using both macroscopic and microscopic techniques.
virtual reality, computational geometry, data visualisation, digital simulation, geographic information systems, interactive systems, solid modelling, traffic engineering computing, microscopic techniques, functional road models, large-scale traffic simulation, geographic information system data, polylines, 3D visualization, sensor data, GIS database, topologically consistent 3D model, geometrically consistent 3D model, interactive visualization, virtual worlds, autonomous vehicle navigation, ramps, highways, overpasses, legal merge zones, intersections, arbitrary states, macroscopic techniques, Roads, Computational modeling, Geographic information systems, Data models, Geometry, Data visualization, geometric modeling., Virtual world
D. Wilkie, "Transforming GIS Data into Functional Road Models for Large-Scale Traffic Simulation", IEEE Transactions on Visualization & Computer Graphics, vol.18, no. 6, pp. 890-901, June 2012, doi:10.1109/TVCG.2011.116