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The New Zealand Railways Magazine, Volume 13, Issue 5 (August 1, 1938)

Other Safeguards

Other Safeguards.

At Johnsonville special provision is made so that during certain hours of the day electric trains will go on one side of the platform and at other times of the day to the other side of the platform, and, further, if one side of the platform is already occupied, then the points will automatically set to divert the following train on to the other route.

Train-control telephones will be provided at all stations, and an indicating light will warn train crews that they are required to stop and speak on the telephone.

Provision is made at Ngaio and Khandallah for the signal cabins there to be switched into use, so that shunting of certain trains can be accomplished by means of the operation of the signal-levers, but under normal working conditions the operation of these stations, including certain specified shunting movements of multiple units, can be carried out automatically without having to switch the signal boxes into use.

In addition to the signalling there is the provision of mechanical train-stops for trains travelling down the grade, so that, if the points are not correctly set, power will be cut off the train and the brakes automatically applied. At the Wadestown crossing-loop, in addition to these facilities, an electrical train-stop is installed which will again cut off power and apply the brakes if the speed of a train is higher than is prescribed.

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