Mobile phone data redraws bus routes in Abidjan

Could records of our mobile phone calls provide a solution to transport gridlock around the world?  Researchers at IBM have used mobile phone data to redraw the bus routes of Ivory Coast's largest city, Abidjan, in an effort to help make people's journey's easier.  But just how bad is the traffic in Abidjan?  The BBC's Tamasin Ford sent this report while sheltering from a very heavy downpour.

To listen to this report along an interview with IBM by the BBC's World Business Report, please click on this link.