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 carries passengers from Reading to the City once again
and beyond Essex to Kent, using engineering that would have earned the
admiration of the greatest Victorian engineers. London historian Stephen
Halliday presents an engaging discussion of the fascinating origins and
heroic engineering that made it all possible.