To compare emissions from the transport sector

To compare the emissions from transports in a proper way, will be of interest when the goal 20-20 -20 shall be examined. The European Committee for Standardization (CEN) has started the work with a standard for how to calculate energy consumption and emission of green house gases within the transport sector. The work has been initiated by France and now will the Swedish Standards Institute (SIS) also start up the work in Sweden to help CEN with views from a Swedish horizon. I wonder how this work will take off and what it will end up in?