[1] Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia
[2] Univ Technol Sydney, Sch Comp & Commun, Sydney, NSW 2007, Australia
[3] Univ Queensland, Brisbane, Qld, Australia
[4] Univ Queensland, Sch Mech & Min Engn, Brisbane, Qld, Australia