Image from Highways England ... a bridge that is heavily overengineered at present carrying just walkers and cyclists (I wonder how many are using it each day?) over the M49. Now ... if there were a railway and station within a mile or so on the main line from London to South Wales, would this not make a marvellous Park and Ride?
From
Business LiveGBP-50m dead-end M49 junction still not in use months after South Glos Council push landowner to build link road
The responsibility for building the connecting road which will provide access to the junction lies with the landowners - Delta Properties - the local authority says