to reduce traffic in the Spanish capital. The SUMP suggests 95 specific measures oriented to reach (by 2020) close to a six per cent reduction of traffic in the city in favour of pedestrian mobility, bicycle use and public transport. Madrid estimates that implementing the measures will result in 3.2 million fewer kilometres being travelled by car per day, which corresponds to a reduction of 135 000 tons of CO2, 400 tons of NOx and 26 tons of PM2.5.