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TERRAIN ANALYSIS FOR HIGH VOLTAGE TRANSMISSION LINE ROUTING USING REMOTE SENSING TECHNIQUES
Session: Transportation and Linear Infrastructure II / Transports et infrastructures linéaires II
Lynden Penner, J.D. Mollard and Associates (2010) Limited (Canada)
Shayne MacDonald, J.D. Mollard and Associates (2010) Limited (Canada)
Remote sensing techniques offer cost effective tools for characterizing terrain conditions for geotechnical and environmental assessment of linear infrastructure routes. A routing study for a high-voltage overhead transmission line highlights the utility of remote sensing for evaluating slope stability, flood frequency at a major river crossing, and potential impacts to environmentally sensitive aeolian soils. Remote sensing tools used include black and white stereoscopic air photos, high-resolution colour orthoimagery, and digital elevation data generated from photogrammetric analysis and LiDAR data. Interpretation of these data sets was aided by ground and helicopter field reconnaissance and publically available information including water well logs, soils maps, and hydrologic data. Study results illustrate information that can be gained from remote sensing techniques, the value of integrating this information with other data sources, and examples of specific terrain features that can be studied using remote sensing products.
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