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LARGE-SCALE AND LONG-TERM SETTLEMENT MONITORING: THE BENEFITS OF USING REMOTE SENSING FOR MAJOR INFRASTRUCTURE PROJECTS
Session: Transportation and Linear Infrastructure II / Transports et infrastructures linéaires II
Pierre-Jean Alasset, C-CORE (Canada)
Joseph Chamberland, C-CORE (Canada)
John Mulvie, C-CORE (Canada)
Bing Yue, C-CORE (Canada)
Through specialized interferometric processing of Synthetic Aperture Radar (SAR) remote sensing data, a technique referred to as InSAR, it is possible to obtain high accuracy infrastructure surface change maps over relatively large regions. Applying InSAR techniques to modern space-based SAR datasets can provide surface change maps every 4 to 23 days with a spatial resolution of 1 to 3 meters. This technique is currently being used to monitor key areas of the Ottawa Light Rail Train (OLRT) construction for surface movement over the duration of the construction. The steps to ensure a successful remote sensing monitoring program include a feasibility study, a proper baseline establishment, and an on-going monitoring period where the monitoring requirements are addressed through proper data planning and processing. The OLRT case is an example of using InSAR tools for large infrastructure projects.
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