1. Delft University of Technology, Department of Management in the Built Environment, Delft, the Netherlands; and Erasmus University Rotterdam, Erasmus Centre for Urban Port and Transport Economics, Rotterdam, the Netherlands
2. Avignon Université, Avignon, France
3. Utrecht University, Department of Human Geography and Spatial Planning Department, CB Utrecht, the Netherlands
4. Erasmus University Rotterdam, Erasmus Centre for Urban Port and Transport Economics, Rotterdam, the Netherlands.