The main messages of the contribution in five points are the following: (1) Besides temporal relations of sustainability, we also have to underline the importance of the spatial context of it. (2) It is the internal network of a region that helps to preserve the structure and the existing...

The main messages of the paper in four points are the following: (1) The environmental target for 2050 (sixty percent emission decrease, oil dependence decrease) is a very progressive vision, clear target. (2) The tools to achieve these objectives are sometimes still contradictory in the White...

The paper collects arguments to present that the consumption- and emission characteristics of the rail and inland navigation modes are very close to each other. Considering that these modes are able to transport more or less the same groups of goods, it is a much better way to develop them...