EU Transport Commissioner, Adina Vălean, described the transport system as a backbone that connects European citizens and businesses. Transport in Europe employs more than 10 million people and is worth about 5% of European GDP. At the same time, transport is not without its social costs: today, pollutant emissions from transport account for about a quarter of Europe’s total greenhouse gas emissions. Moreover, every year more than 25,000 people die on Europe’s roads.