Author (Corporate) | European Commission, DG Energy and Transport |
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Publisher | EC |
Publication Date | 2004 |
Content Type | Overview |
Source Link | http://ec.europa.eu/comm/transport/road/roadsafety/roadinfra/tunnels/index_en.htm |
Subject Categories | Mobility and Transport |
![](https://www.europeansources.info/wp-content/uploads/esologo2.png)