RM Archive
FROM THE RAILWAY MAGAZINE ARCHIVES
100 YEARS AGO APRIL 1921
Mystery white posts
TRAVELLERS on the suburban lines of the South Eastern and Chatham Railway have recently had their curiosity excited by the number of white posts they have been erected on the railway track.
These posts have been put up in connection with the working of suburban traffic during the peak hours, with a view to increasing the carrying capacity of the line. Each post is located at the end of a certain distance beyond the signal, viz, at the treadle of the section at the rear of that signal. This is the point which the first wheel of an engine of any train must pass over before the next following train can be accepted to pass the second effective signal to the rear of the first train.