Gridlocked: Which city has the worst traffic?
BBC News sets out to find the world's most gridlocked cities.
Rajini Vaidyanathan in Mumbai and Martin Patience in Beijing see how far they can get in an hour's drive through crowded streets.
BBC News sets out to find the world's most gridlocked cities.
Rajini Vaidyanathan in Mumbai and Martin Patience in Beijing see how far they can get in an hour's drive through crowded streets.