1. Business School, Newcastle University, 5 Barrack Road, Newcastle upon Tyne, NE1 4SE
2. SpaceTimeLab, Department of Civil, Environmental and Geomatic Engineering, University College London, London, WC1E 6BT
3. Business School, University of Plymouth, Drake Circus, Plymouth, PL4 8AA
4. Department of Civil Engineering, Tsinghua University, Beijing, 100084, China