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2B14 and permissive working at Waverley

You are here: Home > Forum > Simulations > Released > Edinburgh > 2B14 and permissive working at Waverley

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2B14 and permissive working at Waverley 29/07/2020 at 22:28 #130145
TUT
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314 posts
headshot119 in post 130112 said:
bugsy in post 130109 said:
jc92 in post 130106 said:
You need to operate the track circuit overide switch (the red button at the buffer stops) in order to release the permissive route. Its a form of confirmation.
Right. Thanks for your swift response.
I can see the orange roundel and also several others. Don't recall having to use them on the .exe version although they are on there. Perhaps I just talked them past the signal as I did in this case, which is probably not the way to do it. Could you do this in reality or would the TC overide need to be used?
You'd be having a tea and no biscuits meeting if you started talking passed signals without good reason. And there are only 15 goods reasons.
Although to be fair, one of the reasons is emergency permissive working, though that's not quite the same as "If you have failed to operate the required override switch"

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2B14 and permissive working at Waverley 29/07/2020 at 22:44 #130146
TUT
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314 posts
ajax103 in post 130126 said:
What would the reasons be as I can't think of 15, one or two maybe but not 15!
Quote:
1.1 Signaller's authority

You may authorise a signal to be passed at danger or an end of authority (EoA) to be passed without a movement authority (MA) only in the following circumstances.

1 The signal is defective or disconnected.

2 ERTMS equipment is defective or disconnected and is preventing an MA from being issued.

3 The signal cannot be cleared or an MA cannot be sent because signalling or level crossing equipment has failed.
Note 3 is to be distinguished from 1 (and 2) in that 1 specifically refers to a signal being defective or disconnected (and 2 covers the ERTMS equivalent) whereas 3 catches other situations like track circuit failure, failure of barriers of a CCTV level crossing in the raised position only if road-traffic signals working etc.

Quote:
4 For shunting purposes, a main aspect or stop signal is to be passed at danger when there is no associated position-light or semaphore shunting signal, or an EoA passed when it is not possible to issue an MA.

5 The signal cannot be cleared because a train or movement which has reversed is then required to start from beyond that signal.

6 An electric train is to pass the signal or EoA protecting an isolated section and proceed towards the limiting point.

7 A train has been accepted using restricted acceptance because the line is clear only up to the home signal of the next signal box and the section signal cannot be cleared.

8 In an emergency, and then only when authorised by the signal box supervisor or Operations Control, on a TCB or ERTMS line a signal or EoA is to be passed, so that a train carrying passengers can enter an occupied section to use a station platform.

9 An engineering train is to:
• move towards a possession, or
• leave a line under possession at an intermediate point.

10 A train is to pass the signal or EoA protecting engineering work under the requirements of module TS1 General Signalling Regulations, regulation 13.2 to gain access to:
• a station where the train is required to start back
• a line under single line working
• a siding.
10 refers to a "13.2 line blockage", which is one taken by track workers (COSS/IWA/PC/SWL) and is often planned in advance. If work affecting the safety of the line is to take place within 200 metres of the protecting signal, the previous signal must be maintained at danger as well. Item 10 allows the previous signal (referred to as a MAD (Maintained At Danger) signal) to be passed only for the reasons listed provided you have agreed this with the COSS/IWA/... beforehand.

Quote:
11 The line is to be examined to check that it is clear.

12 A train is to proceed at caution through an absolute block section from the signal box in rear when a failed train has been removed.

13 A train is to enter the section after:
• a train or vehicle that has proceeded without authority has been removed, or
• the front portion of a divided train has passed through the section.
13 need not be applied on Track Circuit Block lines, but you must make sure that the line is clear before signalling the next train over the affected portion of line.

Quote:
14 A train is to enter the section to:
• assist a failed train
• evacuate passengers from a failed train
• remove a portion of a divided train
• remove a train or vehicles that have proceeded without authority.

15 Single line working applies.

16 Working by pilotman or modified working applies.

(Module S5 Passing a signal at danger or an end of authority (EoA) without a movement authority (MA), regulation 1)
Headshot quoted 15 reasons because ERTMS is the devil's work and does not count.

Last edited: 29/07/2020 at 22:56 by TUT
Reason: None given

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2B14 and permissive working at Waverley 30/07/2020 at 05:12 #130158
GeoffM
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5445 posts
Hap in post 130141 said:
bugsy in post 130136 said:
Do these comments also apply to the situation with 2B14 (mentioned in my original post above with a save attached) where I had to clear the route from signal E486 into platform 17 as it didn’t release automatically?
That'll be because you talked him passed the signal. Whether it's right behaviour or not for this situation I don't know. But it doesn't happen if the route was cleared.
I didn't catch that. Yes, if the train passes the signal at danger then the train in section proving and thus route release won't apply.

SimSig Boss
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2B14 and permissive working at Waverley 30/07/2020 at 05:19 #130159
GeoffM
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5445 posts
TUT in post 130146 said:
Headshot quoted 15 reasons because ERTMS is the devil's work and does not count.
Strange as I thought he was its number #1 fan in the UK Or maybe because 99% of it is in his neck of the woods.

Must admit, I do like lamps on sticks and staring at a block marker at the end of a platform really is not quite the same as seeing a green and thinking an interesting train may be coming.

SimSig Boss
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