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| Clearing T4 Today at 16:43 #159252 | |
OJH
9 posts 
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The interlocking doesn't allow signal T4 to clear towards T6 at Truro without first lowering and clearing Truro crossing. This seems fair enough given how close T6 is to the LC and the possibility of an overrun. It doesn't look like there's any form of approach control/warner route to get around this requirement. Two things though: (a) you generally try to keep crossings down for the shortest possible time, and up trains can arrive at Truro a good 6+ minutes before they're due to leave - do we just bite the bullet and keep the crossing down for a long time to keep the driver on clear signals? (b) if an up train is stops at Truro and reverses (mainly thinking of the unit to work the first Falmouth train of the day, which can shunt via T14), the train can't be signalled into the platform without the crossing lowered anyway, even though it isn't going over it. It seems odd to lower a crossing only to raise it as soon as the interlocking drops out with nothing passing over it. Am I missing something or is this just a real-life quirk of the locking? Log in to reply |