1. School of Computing, Engineering & Physical Sciences, University of the West of Scotland (UWS), London E14 2BE, UK
2. School of Business and Law, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
3. Department of Mathematical and Industrial Engineering, Polytechnique Montréal, Montreal, QC H3T 1J4, Canada
4. Department of Safety Science, College of Aviation, Embry-Riddle Aeronautical University, Prescott, AZ 86301, USA
5. Robertson Safety Institute (RSI), Embry-Riddle Aeronautical University, Prescott, AZ 86301, USA
6. Centre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, 1649-004 Lisbon, Portugal