Upcoming Games


Full list
Add a game

Upcoming Events

We are not planning any more in-person events until the COVID-19 situation has improved.

Level Crossing AHB Failure

You are here: Home > Forum > Miscellaneous > The real thing (signalling) > Level Crossing AHB Failure

Page 1 of 1

Level Crossing AHB Failure 02/04/2017 at 09:21 #94268
bobby4114
Avatar
1 posts
It is always a join when I play sims and get a Crossing failure. I have lately been playing Cambridge and yet had a crossing failure. But I am unsure what to do. In real life, I would presume trains could be flagged, or the crossing is manually controlled. Any ideas?
Log in to reply
Level Crossing AHB Failure 02/04/2017 at 11:13 #94274
Stephen Fulcher
Avatar
1588 posts
Caution trains normally.

There's often a Level Crossings Attendant sent out there too who can operate the crossing manually, or electrically overriding some of the usual interlocking controls - all under the supervision of the controlling Signaller.

Log in to reply
The following user said thank you: bobby4114
Level Crossing AHB Failure 05/04/2017 at 20:53 #94338
Trainfan344
Avatar
226 posts
So in game, would that count as asking driver to examine the track and pass signal at danger or just passing the signal at danger?
Log in to reply
Level Crossing AHB Failure 05/04/2017 at 23:03 #94339
BarryM
Avatar
2145 posts
Trainfan344 in post 94338 said:
So in game, would that count as asking driver to examine the track and pass signal at danger or just passing the signal at danger?
Pass signal at danger.

Barry

Barry, Sydney, New South Wales, Australia
Log in to reply
Level Crossing AHB Failure 11/01/2020 at 23:20 #122833
swillia3
Avatar
1 posts
Indeed, pass signal at Danger, and not to pass over the crossing unless it is safe to do so, ie clear, / or a green handsignal from the attendant if there is one.

When a motorist rings to say 'can I cross' the answer is NO, if a Police Officer says, I am here, I can wave traffic over, if there are no trains, the answer is NO !

Log in to reply
Level Crossing AHB Failure 12/01/2020 at 07:22 #122834
jc92
Avatar
3084 posts
Within simsig you wouldn't do anything with an AHB "failure" as the only time it should show failed is if the barriers have been down for too long due to a very slow train or a train not having cleared the crossing before stopping for signals etc.
Log in to reply
Level Crossing AHB Failure 12/01/2020 at 11:32 #122845
Ron_J
Avatar
271 posts
swillia3 in post 122833 said:
Indeed, pass signal at Danger, and not to pass over the crossing unless it is safe to do so, ie clear, / or a green handsignal from the attendant if there is one.

In real life you don’t pass the protecting signal at danger after cautioning for an AHB failure, unless there’s some legitimate other reason to (e.g. track circuit failure ahead of the signal).

Log in to reply
Level Crossing AHB Failure 12/01/2020 at 17:59 #122850
Stephen Fulcher
Avatar
1588 posts
The best solution in Simsig:

1. Stop all trains at the protecting signal.
2. Instruct the driver to Examine the Line when he calls.
3. Clear the signal.
4. He will call back from the next signal.

By instructing the driver to examine the line you will keep him to a slower speed as if you had cautioned him in reality.

Just to be aware though, JC92 is right about the causes of a crossing failure in Simsig, which are substantially lower in number than the things that could cause a real AHB to fail. One of the main causes of a failure alarm is when a train takes too long to travel from the strike in point (generally 10 seconds before the crossing shows working) to the crossing itself. By instructing the train to examine the line you will extend this time which might stop the crossing from resetting.

You may be better to just run the next train in greens to remove the failed alarm.

Log in to reply