congestion

On road congestion

One Billion Vehicles on Global Roads by End of 2012

An estimated 691 million passenger cars were on the world’s roads in 2011. When both light- and heavy-duty trucks are included, the number rises to 979 million vehicles, which was 30 million more than just a year earlier. By the end of 2012, the global fleet could top 1 billion vehicles—-one for every seven people on the planet.