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En model for godstransportens udvikling - DCE - Nationalt Center for ...

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2<br />

1,8<br />

1,6<br />

1,4<br />

1,2<br />

1<br />

0,8<br />

0,6<br />

0,4<br />

0,2<br />

0<br />

CO NOX VOC CO2 PM<br />

1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010<br />

Figure 4 Development in the emissions of CO, CO 2 , NO X , VOC and particles<br />

(PM) from Danish vehicles in Denmark.<br />

This is one of the interesting types of detailed in<strong>for</strong>mation that the<br />

<strong>model</strong> is able to provide. It is not possible to compare these detailed<br />

results with the other <strong>model</strong>s, as they do not provide this kind of in<strong>for</strong>mation.<br />

The consequences of the economic <strong>for</strong>ecast are illustrated in Figure 4<br />

showing 5 different emissions. The development in CO 2 is closely in<br />

line with the development in the traffic per<strong>for</strong>mance. As can be seen<br />

from the figure the CO 2 emissions are almost doubled from 1997 to<br />

2010.<br />

At the same time a quite substantial reduction in the other emission<br />

components can be observed. These reductions are due to the introduced<br />

regulation on the amounts of emissions allowed <strong>for</strong> these<br />

components.<br />

Another reason with less importance is the composition of the type of<br />

vehicles that per<strong>for</strong>ms the transport, and also the composition of the<br />

type of goods that is transported. The main influence does however<br />

come from the EU regulation.<br />

In Figure 5 the distribution of the CO 2 emissions on different types of<br />

vehicles are shown. As it can be seen in the figure, the small vehicles<br />

are responsible <strong>for</strong> a large level share of the traffic per<strong>for</strong>med, and are<br />

thus contributing much to the overall development in the emissions.<br />

It is there<strong>for</strong>e striking that there has been no attempts to collect and<br />

provide more in<strong>for</strong>mation on the use of these vehicles.<br />

37

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