Journey to Crossrail

Why did London have to wait so long for a main-line railway beneath its streets? For a few years in the mid-nineteenth century, Isambard Kingdom Brunel's broad-gauge Great Western trains ran from Reading to Faringdon. Now, after many false starts, his vision is being realised as the Elizabeth Line prepares to carry passengers from Reading to the City once again, and beyond to Essex and Kent, using...