A life-cycle perspective including manufacturing, maintenance and end-of-life of vehicles, construction and operation of infrastructure as well as production of fuels is necessary in order to take the right decisions regarding transport. A first objective of this project is to carry out a comprehensive LCA with regard to energy use and greenhouse gas emissions associated with the Swedish transport sector. Another objective is to provide scientific decision support regarding strategic choices by developing a handful of “What-if” scenarios which reflect current trends or have the potential to reach climate targets. The scenarios may for instance include a high share of electric vehicles or a large-scale introduction of second generation biofuels from forest residues, or they may include reduced car travel entailing a lower demand for new vehicles, parking space and road space. Finally, dissemination of results to key transport actors is yet another important objective.