Cannock town centre isn't the nicest of places to be and there was a particularly nasty subway linking the town to Morrisons, and the railway station a little further on. It was preferable to dodge the traffic on the dual carriageway above than to use it.
It's now been transformed into an art gallery, the work of local artists has been put into tiles. It's actually nice to walk down there now and people seem to be respecting it.
There's a BBC video here, the subway hadn't actually been completed at that point but you can get an idea of what it's like. I walked through there the other day to and from the station and thought that I really must show you.
http://www.bbc.co.uk/news/uk-england-stoke-staffordshire-33667935