Weird and Wonderful: Looking at Self/repairing roads

Aubrey speaks to Prof Kim Jenkins, Professor in Civil & Pavement Engineering at Stellenbosch University, the possibility of having self-repairing roads which is technology that other countries are developing. How does it work, and is it a viable solution for South Africa? Beyond the convenience, what are the economic and environmental costs of implementing this?See omnystudio.com/listener for privacy information.