Multi-risk buildings exposure and physical vulnerability mapping from optical satellite images: Developing an integrated toolset

The phenomenon of urban sprawling calls for a cost-effective and rapid monitoring tool. Space borne technology offered the ability of extracting such information which is critical for urban planning and resource management. This paper introduces a newly developed indicator from Landsat acquisitions for highlighting built-up areas. On a multitemporal scale the results obtained on urban extraction were used to estimate the age of built up area, connected to codes applied in building design and ultimately to their vulnerability. In conclusion, the extracted information serves as inputs for an integrated approach on multi-risk buildings' exposure and physical vulnerability assessment and mapping.