The European Commission, DG Climate Action contracted AEA, CE Delft, TNO and TEPR to carry out a study directly building on the work previously completed under the ‘EU Transport GHG: Routes to 2050?’ project. This new work (dubbed ‘EU Transport GHG: Routes to 2050 II’) started in January 2011 and was completed in March 2012. The outputs from this new project help to support the Commission in prioritising and developing their strategy for reducing GHG emissions from the transport sector. CE Delft organised successfully the stakeholder engagement as well as the in-depth research on several topics: greenhouse gas (GHG) emissions from vehicle production and infrastructure development, CO2 reduction costs, co-benefits of GHG policies and knock-on consequences of such policies. Also alternative economic development paths were investigated, such as paths that could be less transport intensive, but still deliver increasing levels of prosperity.