Geographic Information Systems

Geographic Information Systems

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Computer-based geographic information systems (GIS) have become a powerful new tool in the civil engineering industry for the organisation and analysis of spatial data. They are patricularly important now that survey data can be collected so quickly and accurately using the global positioning system (GPS). This special colour issue of ICE Proceedings contains a suite of seven refereed papers written by leading experts in the field. It provides a comprehensive introduction to GIS and GPS and reviews their practical applications in civil engineering, including major projects such as the Channel Tunnel Rail Link.It is easy to see that information traditionally held on a map background falls into this category. ... from remote sensing is also spatially referenced, by a cell location within a frame in a coordinate reference system. ... If all that is required is to display a picture of a locality then a digital raster representation, similar to that created for a fax, is quite sufficient. ... This information is better modelled using a surface represented as a grid (raster) or as a triangular irregular network (total coverageanbsp;...

Title:Geographic Information Systems
Publisher:Thomas Telford - 1996-01-01


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