| Planung Transport Verkehr AG | Germany |  |
| Centre d’Etudes Techniques Maritimes Et Fluviales | France |  |
| TL & Associés | France |  |
| International Consulting Environnement Services | France | |
| Közlekedestudomanyi intézet kht. – Institute for Transport Sciences | Hungary |  |
| ETH / IVT – Zürich | Switzerland |  |
| Centre de recherche public Henri Tudor | Luxemburg |  |
| Université Libre de Bruxelles | Belgium |  |