The biggest challenge of implementing a Sustainable Urban Mobility Plan (SUMP) is to link the process of developing a strategy with the allocation of funding by the national administration. Most SUMP projects currently underway tend to focus on building a bottom-up consensus on the importance of the SUMP approach for a range of valued social and environmental objectives. However, measures specifically deployed to achieve these objectives are frequently perceived by funding bodies to be less important than major infrastructure schemes. A SUMP is in most EU countries therefore not a requirement for significant funding. There is now compelling evidence to demonstrate the economic benefits of delivering transport investment through a SUMP framework.