track-circuited en · ADJ
Etymology
From track circuit + -ed.
Meanings
-
(not-comparable) Of a section of railway line, provided with track circuits.
Some 60 miles of single line (with long and short crossing loops at suitable intervals) will be continuously track-circuited and colour light-signalled under the control of one signalbox at Llandrindod Wells, enabling 18 existing signalboxes to be closed.
1960 April, “Talking of Trains: C.T.C. for Central Wales”, in Trains Illustrated, page 194:In recent issues two replies have been given to correspondents concerning the function of the diamond-shaped enamelled white plates fixed to signalposts, which are to indicate to enginemen that the section of line is track-circuited, so that action under Rule 55 of the Rule Book is unnecessary.
1943 March and April, “Notes and News: White Diamonds on Signalposts”, in Railway Magazine, page 116: