From this point of view, indirect land use claims by gas stations do not exist and are therefore
not considered in this study.
The Dutch Ministry of Transport considers the transport of hazardous goods by train to be
safe. Therefore, no limiting measures exist concerning construction in areas adjoining tracks
where transport of hazardous goods takes place.5
However, in the surroundings of 14 railway
yards, zones are determined where construction of houses is prohibited because of the
increased risks resulting from the stationing and shunting of trains that transport hazardous
goods. The indirect land use claim by these railway yards is 3 km2
(RIVM, 1999).
Concerning aviation, external safety risk contours are determined for a number of airports.
These contours relate to the risk of an aircraft crashing where people at the ground level are
exposed to. The total indirect land use claim within these external safety risk contours is 50
km2
for the airports Schiphol, Maastricht, Rotterdam and Eelde (RIVM, 1999). However, this
area is not included in the financial valuation, because the external safety risk contours are
within the noise nuisance zones of the concerning airports (see below). Valuing these safety
areas of airports would lead to double counting when also the noise zones would be
evaluated.
Finally, for waterways no limiting land use measures are formulated. This is not so much due
to the safety of the transport system, as to the low intensity of such transport on water.