Abstract
Cadastral Surveyors:Go Forward Digitally and Coordinate Accurately Track: Surveying Author(s): Michael Elfick Historically, cadastral layers in GIS systems did not have a critical need for survey accurate data since information in the databases was spatially 'pictorial.' Limited hardware capabilities and GIS software design also restricted accuracy. New hardware technology, more powerful software and wider accessibility to GPS has highlighted the inadequacies of the existing data and GIS compilation methodologies. The concept, implementation and management of a survey accurate "coordinated cadastre," is investigated and where such a system fits in the overall GIS information scene is outlined. It also looks at expected costs, benefits and operation of such a system. The future will be a coordinate-based cadastral system whether we like it or not. Point-based survey technology is replacing measurement-based methodologies. The future shortage of surveyors and the economics of asset management are some of the reasons why an accurate digital cadastral GIS database is necessary. Michael Elfick GeoData 380 New York St. Redlands , CA 92374 US Phone: 909-793-2853 E-mail: elfick@bigpond.com |
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