Will Cambodians swap motorbike taxis for buses?
6 February 2014 Last updated at 02:15 GMT
Cambodia has started a trial run of a public bus system in the capital for the first time in over a decade in a bid to reduce traffic jams.
The trial in Phnom Penh has 10 buses operating on a single route across the city centre for one month.
Officials say there are more than a million motorbikes in the capital, in addition to more than 30,000 cars on the streets.
Russell Trott reports.