Cardiff Metro: 30 years in 60 seconds

For decades Cardiff has been looking at ways of bringing its city centre and docks area closer together.

There have been a series of ideas and projects aimed at linking the two areas in a bid to improve transport links and reduce congestion.

But with many thousands commuting from the north, west and east into Cardiff and plans for more house-building in the north west of the capital, any metro system introduced will need to have a wider impact than the proposals of the past.

BBC Wales economics correspondent Sarah Dickins takes a look at some of the ideas over the last 30 years.