Welcome to Railway Forum!

Thank you for finding your way to Railway Forum, a dedicated community for railway and train enthusiasts. There's a variety of forums, a wonderful gallery, and what's more, we are absolutely FREE. You are very welcome to join, take part in the discussion, and post your pictures!

Click here to go to the forums home page and find out more.
Click here to join.

Go Back   Railway Forum > Railway Modelling > Railway Modelling

approach control in scheme plans

Thread Tools
Old 10th June 2021, 11:59
railenthusiast3 railenthusiast3 is offline  
Join Date: Jun 2021
Location: SURREY
Posts: 1
approach control in scheme plans

Dear All, can anyone post examples of approach control (MAY/MAR/MAR-FA) in scheme plans for a standard 3/4aspect signalling with explanation? thank you.

Reply With Quote
Old 10th June 2021, 17:34
pre65's Avatar
pre65 pre65 is offline  
Senior Member
Join Date: Jun 2009
Location: Ashen-North Essex/Suffolk borders.
Posts: 3,557
Images: 93
Does this help ?

It took me 38 seconds on Google to find.

Reply With Quote
Old 11th June 2021, 15:49
Beeyar Wunby's Avatar
Beeyar Wunby Beeyar Wunby is online now  
Senior Member
Join Date: Dec 2012
Location: NW Norfolk
Posts: 832
Images: 4
HI re3, and welcome to our forum.

Philip's link gives plenty of data, BUT... this seems to be an Indian website. Although it's based on UK signalling principles, there are some differences. So be wary.

For UK-specific practice, you should read the RSSB publication "Signals, Handsignals, Indicators and Signs Handbook RS521". Which can be found at this link....https://www.rssb.co.uk/standards-catalogue/CatalogueItem/RS521-Iss-6

If you want an interpretation or explanation of anything you read there, just ask us. Of course, the more specific your question - the more precise the answer will be.

W.r.t an explanation of Approach Control at junctions, the purpose is firstly to advise the driver that they're being turned onto a slower route (either with a junction indicator, or on faster turnouts with flashing yellows), and secondly to get them to reduce speed to that required for the turnout.

The key to driving these arrangements is to NOT EXPECT the red at the far end to clear. The driver must keep bringing their speed down with a view to stopping at the red. If the signals STEP UP, then great - you're up and away. If they don't, it doesn't matter because you're expecting to stop anyway.

The junction indicator only tells you that you're taking the diverging route. It doesn't guarantee that you have the road all the way through.

HTH, John
NNR Diesel traincrew
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump

All times are GMT +1. The time now is 13:08.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.