1. Institute of Transport and Maritime Management Antwerp (ITMMA), University of Antwerp, Keizerstraat 64, B-2000 Antwerp, Belgium
2. Division of Infrastructure Systems and Maritime Studies, School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
3. Transport Research Institute (TRi), Edinburgh Napier University, Merchiston Campus, Edinburgh EH10 5DT, Scotland, UK