The New Zealand Railways Magazine, Volume 2, Issue 3 (July 1, 1927)
Interlocking Completed
Interlocking Completed.
The Department has completed the installation of power interlocking at Whangarei, Paerata, Papakura, and Stillwater stations, together with the provision of three-position colour light signals at each place. The interlocking for these installations is controlled from the station office, thus avoiding the necessity for employing a special signalling staff.