World urban traffic congestion costs "hundreds of billions"

eurotransportmagazine: "The International Energy Agency expects urban growth demands to double road and rail travel by 2050, causing significant strain on public transport infrastructure. Furthermore, in cities around the world, rising congestion is costing hundreds of billions and affecting the health of the public. This is obviously a cause for concern, and puts sustainability and the liveability of cities as a focal point when deciding upon future transportation projects."