Brussels authorities want to put one car in every five off the road. The proposals have been outlined as part of a plan to increase mobility in the city and include a reduction in car traffic of 20 per cent by 2018, and a reduction of 6 to 10 per cent by 2015.

The idea of congestion charging in the city has been agreed in principal by the city council, which proposes charging motorists by the mile, providing that viable public transport is in place to cope with increased passengers. The Iris 2 plans also include a new metro line to Schaerbeek by 2018 and a 16 per cent reduction in available parking on roads.