Watch the video, created by The Queensbury Tunnel Society, here.
The Queensbury Tunnel Society, which is promoting the idea of a cycle path through a disused railway tunnel to the west of Bradford, has started publishing a collection of filmed interviews with people who have connections with the Victorian structure or see its potential as part of a sustainable transport network.
Each two minutes long, the videos cover five broad themes - Cycling, Campaign, Engineering, Memories and Politics.
The aim is to raise awareness of the tunnel, its plight and the potential benefits of incorporating it into a cycle network connecting Halifax to Bradford and Keighley.
The tunnel is currently under threat because of abandonment plans being drawn up by Highways England's Historical Railways Estate (HRE) which looks after it on behalf of the Department for Transport (DfT). This will involve infilling critical sections with concrete at a cost to the taxpayer of about £3 million. Political pressure is currently being applied to suspend those works pending the outcome of two investigations - one being progressed for Bradford Council and another from consultants appointed by the DfT.
The first video features Councillor Dot Foster, Calderdale's Cycling and Walking Champion, who said: "If the vision of Councils in the local area is truly to improve the health and wellbeing of the local people, we've got to invest," she states.
Norah McWilliam, leader of the Queensbury Tunnel Society, added: "We're working hard to promote our vision of the tunnel as a feat of Victorian engineering that still has a valuable role to play in the 21st century. These videos will help us, through the insight of friends who share the vision.
"It's a complex story with lots of sub-plots, but we have to unravel them before it's too late. There's no going back if, in 20 years, we suddenly see the need for a cycle path connecting the Calder and Aire valleys. No amount of regret will shift all that concrete or the damage inflicted by time."