An App that is actually worth downloading (must remove all the crap ones that do nothing whatsoever apart from amuse for a few minutes after being installed…) has just been published by Sustrans, so I just did but it is quite difficult to test while still in bed. I did notice that according to the on-screen map that the disused foot tunnel under the mainline railway line from Reading to Paddington which runs directly behind the block of flats where I live has a cycle route running through it. I may wander down there before work to investigate. It would be a very useful shortcut if the authorities were ever to come to their senses and decide to reopen it. I fear it is simply a mapping error…