Multisource Data Based Approach to Mapping Exposure and Seismic Vulnerability of Buildings in Tangshan Center, China

This paper develops an approach that employs multisource data to map exposure and seismic vulnerability of buildings. This approach includes two interdependent parts: (1) estimating floor areas of buildings using Google Earth (GE) images and Tencent Street View and (2) identifying structural types of these buildings employing crowdsourcing data and associated building-relevant local knowledge (Br-LK). This approach was demonstrated in Tangshan, China. Field-based verification showed this approach has good accuracy.