9. United States
USA is probably one of the busiest when it comes to traffic. It is truly surprising how well the authorities have managed loads of traffic coming out of every street. Percentage of road casualties in United States is 1.70.
USA is probably one of the busiest when it comes to traffic. It is truly surprising how well the authorities have managed loads of traffic coming out of every street. Percentage of road casualties in United States is 1.70.