The world's leading traffic information service (INRIX) has ranked the most congested cities in 2021:
1/ London (United Kingdom)
2/ Paris (France)
3/ Brussels (Belgium)
4/ Moscow (Russia)
5/ New York City (USA)
6/ Chicago (USA)
7/ Rome (Italy)
8/ Bogota (Colombia)
9/ Palermo (Italy)
10/ Istanbul (Turkey)
London, Paris and Brussels drivers lost respectively on average 148, 140 and 134 hours in traffic jams in one year.