Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges Proceedings of the Ninth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2018), 9-13 July 2018, Melbourne, Australia - Powers, Nigel; Frangopol, Dan M.; Al-Mahaidi, Riadh; Caprani, Colin (Bridge Maintenance, Safety and Management Ser.)