Could tunnels fix our ferry problems?

Available for over a year

Shetland’s islands could soon be connected by undersea tunnels after councillors backed the initial plans to replace ageing ferries and link Shetland’s mainland to Yell and Yell to Unst. Martin Geissler speaks to Andy Sloan, executive vice president at engineering firm COWI, and the BBC’s David Henderson about whether tunnels are a viable alternative to Scotland’s whole ferry network. Scotcast is the BBC’s Scottish news podcast. Get in touch: scotcast@bbc.co.uk