Abstract
The commercial, safety and community benefits for using Ground Penetrating Radar (GPR) in the detection of underground assets, in particular utilities, is well proven. Currently most GPR surveys are typically carried out by hand pushed units using either single or dual frequency systems to confirm and/or locate underground assets. Once located, asset locations are marked using spray paint, the GPR images are saved for reporting and sometimes locations are mapped using GPS or other means for further use in CAD or GIS. These surveys are typically independently commissioned to contractors by utilities organisations with information rarely shared between organisations after survey completion. Advanced development of GPR systems now allows for rapid full 3D capture of underground assets using arrays of multi-frequency, multi-polarised GPR antenna towed by vehicles. This rapid capture capability provides for coordinated capture of underground asset location across utility organisations for centralised and coordinated management and improvement of the efficiency of construction activities. IDS have developed a revolutionary real time mapping software for their suite of array Ground Penetrating Radar systems. The “One Vision” software in conjunction with the IDS Stream EM massive array GPR system, is specifically designed to assist the utility locating industry by providing a real time tomographic (plan) view of the subsurface at the network level. This means that companies involved in large scale construction projects can now be provided with super clear georeferenced imagery of subsurface features over large areas whilst still on-site, allowing them to make preliminary decisions quickly and without significant delay to their operations. This paper shows recent results of the One Vision software, Stream EM system and the Leica Geosystems Pegasus:Two 3D mobile laser scanner, to bring a complete mobile mapping solution for both above and below ground assets.
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