Satellite Based Radar Technology for Asset Management During Large-Scale Transport Infrastructure Projects

Ground settlement and associated deformation of existing infrastructure is a major risk in urban development projects. Project owners in such areas have a responsibility to document and manage settlement records before, during and after construction works. Traditionally, land surveying has been the state-of-practice tool to provide settlement monitoring data. Modern radar interferometry provides the opportunity to drastically increase the number of monitored locations, while at the same time reducing expenses for traditional geodetic survey work. We illustrate this technology for a large urban railway development project near Oslo, the capital of Norway.