Major cities like London, Paris, Milan and Copenhagen have instituted a variety of urban vehicle access regulations and fees for using motor vehicles in specified, densely populated areas in an effort to minimise vehicular traffic congestion and the toxic fumes they emit.

It is now very expensive to drive your car in those designated areas, even newer ones with lower emissions. This encourages people to use public transport and entices car manufacturers to design lower-emission or even electric/hybrid engines.

Read our article: Cities with congestion zones

Do you have experience of those zones? Do you think they are appropriate?