Network Rail Gang

Network Rail Gang, a photo by Dave Forbes Photography on Flickr.

Via Flickr:
One of the most dangerous jobs in Britiain , especially on the very busy West Coast Mainline where trains can reach speeds of 90mph at this point near Abington on a working day. The one up front is sonic testing the rails. The worker at the rear has a receiver and ariel pack to receive from colleagues a half a mile either way up the railway warnings of approaching trains , in turn , the message is sent to an alarm so that they can get of the tracks