Cities are facing growing mobility challenges due to the strong dependence on cars. Motorised traffic is recognisably a major source of air and noise pollution in cities. In the EU, urban mobility accounts for 40% of CO2 emissions and up to 70% of other pollutants. The sustainable mobility concept is focused in shifting this pattern towards non-motorised or more sustainable forms of mobility. Walking is a soft and active mode strictly related with sustainable mobility as it reduces traffic congestion and pollution and has positive impacts on health. SPN is a project focused on improving walkability in cities. SPN intends to provide a model to help European cities to improve walkability as one of the important dimensions of smart, sustainable and inclusive development.