Not my area but from the description, they sound like look outs for staff working on or near the line ie when a train approaches they warn the staff before returning to a point of safety.
I'm sure the guys on here who deal with that side of work can give a even more detailed note if need be.
im sure the flag is to show the end of a temp speed restriciton when NR staff are working on the track but im not 100% on that one
They are most certainly look outs, the flag is used for visibility at distance on a long sweeping curve with a higer linespeed you can see 3 or sometimes 4 advanced lookouts with chequered flags.
Wrong, as everybody else has said they are advanced lookouts for workers further around the corner.
When the lookout sees a train approaching he waves the flag, when the train is clear the flag is held steady to signify that work can recommence. The only significance to a driver is to sound the horn when he sees the look-out.
You're welcome, and please note that direct linking ('hot-linking') to images on the Railsigns site isn't possible!Quite right, please note as well that the correct sign to indicate the end of a Temporary Speed Restriction is:
Many Thanks to the Rail Signs site.
Quite right, please note as well that the correct sign to indicate the end of a Temporary Speed Restriction is:
Many Thanks to the Rail Signs site.
These days you are only allowed one advanced and one intermediate look out in each direction.
2 in each direction?