MadMac
Member
Approaching Blackburn from the Preston/Bolton direction the signals before Blackburn Bolton Jn give a wide array of indications: "1" for platform 1, main aspect only for 2, "B" for 3 (bay), "T" for 4, "G" for the goods. There are also several subsidiary indications depending on the signal in question.
Interested to read this. My recollection of the "Rules of the Game" as a Signal Engineer for 41 years (I've been away from the UK for 20) was that if you provided a "Theatre", it had to give an indication for all routes i.e. the "main aspect only" wasn't allowed. I think there also used to be a 40 MPH restriction?