Media playback is unsupported on your device

Gridlocked: Which city has the worst traffic?

15 January 2013 Last updated at 13:46 GMT

BBC News sets out to find the world's most gridlocked cities.

Tomi Oladipo in Lagos and Christian Fraser in Paris see how far they can get in an hour's drive through crowded streets.

Gridlocked Day One: Moscow vs. Los Angeles