Print Email Facebook Twitter Multi-Temporal InSAR for transport infrastructure monitoring: Recent trends and challenges Title Multi-Temporal InSAR for transport infrastructure monitoring: Recent trends and challenges Author Macchiarulo, V. (TU Delft Geo-engineering; University of Bath) Milillo, Pietro (University of Houston) Blenkinsopp, Chris E. (University of Bath) Reale, Cormac (University of Bath) Giardina, Giorgia (TU Delft Geo-engineering) Date 2022 Abstract Worldwide, transport infrastructure is increasingly vulnerable to aging-induced deterioration and climate-related hazards. Often, inspection and maintenance costs far exceed the available resources, and numerous assets lack any rigorous structural evaluation. Space-borne synthetic aperture radar interferometry (InSAR) is a powerful remote sensing technology that can provide cheaper deformation measurements for bridges and other transport infrastructure with short revisit times, while scaling from the local to the global scale. As recent studies have shown InSAR accuracy to be comparable to that of traditional monitoring instruments, InSAR could offer a cost-effective tool for long-term, near-continuous deformation monitoring, with the possibility of supporting inspection planning and maintenance prioritisation while maximising functionality and increasing the resilience of infrastructure networks. However, despite the high potential of InSAR for structural monitoring, some important limitations need to be considered when applying it in practice. In this paper, the challenges of using InSAR for the purpose of structural monitoring are identified and discussed, with specific focus on bridges and transport networks. Examples are presented to illustrate the current practical limitations of InSAR, and possible solutions and promising research directions are identified. The aim of the paper is to motivate future action in this area and highlight the InSAR advances needed to overcome current challenges. Subject bridge evaluationdeformationmonitoringsafety and hazardssettlement To reference this document use: http://resolver.tudelft.nl/uuid:29e3baef-cf10-40be-a408-3b0aa119ce67 DOI https://doi.org/10.1680/jbren.21.00039 ISSN 1478-4637 Source Proceedings of the ICE - Bridge Engineering, 176 (2), 92-117 Part of collection Institutional Repository Document type journal article Rights © 2022 V. Macchiarulo, Pietro Milillo, Chris E. Blenkinsopp, Cormac Reale, Giorgia Giardina Files PDF jbren.21.00039.pdf 5.15 MB Close viewer /islandora/object/uuid:29e3baef-cf10-40be-a408-3b0aa119ce67/datastream/OBJ/view