What is this signal used for?

[ralphchadkirk]

But it would show that either the signal is 'on' or 'off'? Could you have a banner repeater and a CA for the same signal, or would there be no need for the banner repeater?

The Banner repeater can only show whether the signal is displaying a proceed aspect or a danger aspect. (Although I believe there was a trial whereby if the signal was green it would be a green bar? - Perhaps Railsigns could confirm?)
A Co-Acting signal displays the aspect actually being shown in the signal to which it relates.

 

[142094]

The Banner repeater can only show whether the signal is displaying a proceed aspect or a danger aspect. (Although I believe there was a trial whereby if the signal was green it would be a green bar? - Perhaps Railsigns could confirm?)
A Co-Acting signal displays the aspect actually being shown in the signal to which it relates.

I understand that, but want to know the reason for why one is used over the other. I can think of a few places where a banner repeater is used and a co-acting signal could be used as well/in place of the banner repeater.

 

[b0b]

the WCML upgrade has coloured banner repeaters.

I assume that the height difference of the signals in the OP's photo is the clue that the signal is a co-actor, and not the signal for reversable working of the other line/

 

[142094]

I assume that the height difference of the signals in the OP's photo is the clue that the signal is a co-actor, and not the signal for reversable working of the other line/

Has 'CA' on the plate.

 

[b0b]

Has 'CA' on the plate.

That'd be a little easier to miss vs the height difference...

anyway for all you coloured banner repeater fans; fast forward to 0:41 of

http://www.youtube.com/watch?v=M_YnD0O8Ku0

 

[ralphchadkirk]

the WCML upgrade has coloured banner repeaters.

I assume that the height difference of the signals in the OP's photo is the clue that the signal is a co-actor, and not the signal for reversable working of the other line/

As 142094 has said, the signal will be plated with the same ID with a CA.
For example if FN104 signal had a co-acting signal it would be FN104CA.

 

[142094]

That'd be a little easier to miss vs the height difference...

anyway for all you coloured banner repeater fans; fast forward to 0:41 of

http://www.youtube.com/watch?v=M_YnD0O8Ku0

That the one at Norton Bridge? Didn't realise it also came with an arrow as well.

 

[b0b]

That the one at Norton Bridge? Didn't realise it also came with an arrow as well.

That's the down fast coming off the Trent Valley lines at Rugby

 

[driver9000]

The arrows will be a Preliminary route indicator. These are also on trial designed to give drivers advanced notification of the route set at an upcoming junction before the actual signal is sighted.

 

[Railsigns]

The Banner repeater can only show whether the signal is displaying a proceed aspect or a danger aspect. (Although I believe there was a trial whereby if the signal was green it would be a green bar? - Perhaps Railsigns could confirm?)

A 'green banner' shows a black bar on a green background.

Some details here (bottom of page):

http://www.railsigns.co.uk/sect7page3/sect7page3.html

And a photo here:

http://www.railsigns.co.uk/pics/pic_gbrpri/pic_gbrpri.html

 

[ralphchadkirk]

A 'green banner' shows a black bar on a green background.

Some details here (bottom of page):

http://www.railsigns.co.uk/sect7page3/sect7page3.html

And a photo here:

http://www.railsigns.co.uk/pics/pic_gbrpri/pic_gbrpri.html

Thanks for that - just got the bar and the background mixed up!

 

[Hairy Bear]

Can positivly confirm that it is a co-acting signal due to cuvature of the line. Under Network Rails current policy of signal sighting they are under obligation to use these due to the time of sighting a banner repeater and then passing the signal itself. As Drivers we don't agree but's Network rail for you !!.