TUBE WONDER.

Otago Daily Times, Issue 19198, 14 June 1924, Page 10

TUBE WONDER.

TUNNELS THAT DIVE. GREAT ENGINEERING FEAT. By means cf on© of the most wonderful engineering feats, of recent years— junction of six tunnels on tho Underground Railway between Euston and Camden Town—the City and South London Railway has been linked up with the Hampstead tube. Tho tunnels form their junction in a unique way by vaulting and passing beneath each other. “There is no other piece of engineering like it in tho world,” an underground official told a Daily Hail reporter.. It was an extraordinarily intricate task—but it had to be done so that through services might bo run right from Hendon or Higligate to Moorgate street, in the citv, and later, on to C’apham, The ordinary way of making a junction is to make tunnels converge at a flat point. Had this plan been followed, however, it would have" meant that trains would always have been held up to allow others to pass,, and a great deal of time would have been was led. As it is, six trains will bo able to pass at the same time by means of these new tunnels. “On Easter Sunday, when the junction was in full working order,, over 100 trains an hour were running to and from the City and Hendon and Highgale. If necessary w© oould run 160 on the ‘through’ route. The direct sendee should prove a great boon to many thousands of -people who travel between these points and who have had to change several times to reach their destination.” He added that the Underground Railway were very proud of the new junction. "Much of the work had to be done while 'trains were running,” he said, “but although 17 connections had to be made between the new and tho old tunnels, everything was carried out without a hitch, and with, mathematical precision.”