Signalling Question

[Paul M]

It fact it is just one of a number of different prototypical practices and very definitely not the only one.

That was probably one of the hardest parts of a driver's life, learning the road, and all the different signalling

 

[GAP]

This is an update to my blog which describes a point indicator screen for my railway.

https://www.gscalecentral.net/threads/ringbalin-light-railway.314200/page-5#post-743465

I am going to add signalling to it hence the questions on signalling.
The grand plan is to add sensors for train location as well but for the time being I will stick to points.

I tried to copy something like the screens AlanL put up earlier in another thread for an attempt at realism.

 

[AlanL]

I have 3d print files for a single post signal so it would be a small modification to add another arm

Gap, I would be wary of using 3D printing for signal posts outside. Filaments are heat sensitive especially PLA and the posts would probably distort under the heat of the sun.
Alan

 

[GAP]

Another question about signalling and point changing.
When a set of points is changed; do the signals change automatically or is that a separate function.
I am guessing that they are 2 different actions.
My main interest is the older manual signalling rather than the newer computer controlled but I am interested in both operations are handled.

The reason I ask is that I am experimenting with using a mouse click on a screen to change signals and points.

 

[Gizzy]

Another question about signalling and point changing.
When a set of points is changed; do the signals change automatically or is that a separate function.
I am guessing that they are 2 different actions.
My main interest is the older manual signalling rather than the newer computer controlled but I am interested in both operations are handled.

The reason I ask is that I am experimenting with using a mouse click on a screen to change signals and points.

Old mechanical signalling, you change the points before the signals.

Mechanical Interlocking makes sure that you can't set a signal before changing a point.

Modern digital systems still has this interlocking....

 

[PhilP]

Mechanical Interlocking makes sure that you can set a signal before changing a point.

That should be "can't"..

PhilP.

 

[dunnyrail]

Old mechanical signalling, you change the points before the signals.

Mechanical Interlocking makes sure that you can set a signal before changing a point.

Modern digital systems still has this interlocking....

Also signals must be put back to normal (danger) once the full train has past, the signal man must also check that the tail lamp is present and working to ensure that the train has not lost any vehicles. A vital safety function and why on my line I have end of train markers fitted to each train, being moved when other vehicles are added to the rear.

 

[Gizzy]

That should be "can't"..

PhilP.

Thanks Phil, I've correct my post....