SIR - There's been a dispute over the future use of the Queensbury Tunnel involving Highways England threatening to fill it in over safety concerns, but it is still being used by cyclists. It has been shown that these historic constructions can be profitably utilised as with Sunbridge Wells in the centre of Bradford with pubs, restaurants and shops. And it is vital that this happens where possible.

This is a real nuts and bolts local issue for real people and shouldn't be reduced to a cheap soundbite or punchline. And councils should do all they can to preserve these marvels of Victorian construction and allow public access. If tunnels get banned they'll just go underground.

Alan Bates, Bowland Avenue, Baildon