**4.2 Efficiency**

The climate change that has been observed in recent years has also affected the priorities in the transport agenda. Nowadays minimization of CO2 emissions related to transport and environmental friendly driving comprises a top priority. The results of the CVIS project (CVIS, 2006-2010) have shown the added benefit from the use of wireless communication to enhance efficiency in transport. Examples of co-operative efficiency related applications will be highlighted in the following.
