Raisa Cole takes to Jo'burg's streets to find out why most of us don't use public transport.

The transportation sector is the most rapidly growing source of greenhouse gases in South Africa. According to the United Nations Framework Convention on Climate Change (UNFCCC) the carbon emissions from the sector has grown by 30% in the last ten years, making it the fastest growing sector in terms of carbon emissions.

Reducing the number of cars on the road seems to be the logical answer, but the majority of South Africans still use private vehicles as their primary mode of transport.