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G'day BW,
Can you explain the procedure for the Trip Test, as in the situation applied to the double yellow signal in this incident.
We have the Train Stop (train trip) system in smog hollow.
It works VERY effectively, especially when combined with the double overlap.
If this junction existed in smog hollow, there would be TWO RED sticks protecting the junction points.
Our Train Stop lever only raising at signals displaying STOP, plus those displaying a restrictive subsidiary indication (slow speed or calling on).
The Slow Speed situation is train speed orientated, and the trip will drop when train speed is below that set (normally 25 kph).
In the actual smog hollow underground sections, the trip lever remains raised on sticks displaying Green over Red.
That again being train speed determined, and will drop when train speed on approach is below that stipulated (again usually 25 kph).
Sticks in our underground sections are virtually 8 car train length separation.
So, many more sticks existing than up in the atmosphere.
Steve.
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