Abstract

<p>Bridges are one of the most vulnerable assets within the transportation network. Ageing processes in combination with changing loading conditions make these assets especially vulnerable to structural damage and material degradation. To ensure the optimal operation, appropriate maintenance practices are required, and new techniques and methods facilitating a more accurate diagnostic and safety assessment are being demanded.</p><p>IM-SAFE project aims to fill the gaps in the existing European standards regarding monitoring, maintenance, and safety of transport infrastructure. This paper gathers information about surveying technologies with a focus on optical and radar remote sensing technologies. The final purpose of this article is to support the use of these technologies in the management of bridges and tunnels, and demonstrate the value of their information for the safety assessment of in-service structures.</p>

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