Does anyone know what those blue signs are on motorways .?

Question

they are normally half a mile apart and have the motorway name followed by something like 236 b

Answer 1

Its a driver location sign. The signs allow road users to telephone the road rescue organisation or the Regional Control Centre and advise their exact position when reporting an incident.  This leads to improved response times by the emergency services and traffic officers, thereby reducing the severity of incidents.  All this helps to reduce congestion

A sign by the side of a motorway or an all purpose trunk road that tells the road user:

The motorway route number or A road route number that you are on;

The direction you are travelling; and

Your precise location on the route

“A” is the clockwise direction of the  main carriageway.

“B” is the anti-clockwise direction of the main carriageway.

Answer 2

It's probably count down markers which are stripes on a blue backround. They countdown for the motorway exit. It's either that or direction signs.

Answer 3

If you mean the numbers inside the boxes, usually to the bottom left of the sign, they are junction numbers; for example, if you had directions to follow the M1 and come off at Junction 26, that number would be on each blue sign: and depending on whether you're heading North, or South will depend on whether the number increases or decreases: Junction 26 will be the same geographical spot from both the South and the North (or indeed the East and West as it were).

Every now and again, when they've introduced a new junction, they don't re-number EVERY road sign along that road: they simply make the new junction fit in by lettering it as well..

For example, a new junction in-between number's 10 and 11 would be labelled "10b"..

Hope that's what you mean?

Answer 4

Yes,thanx!

Answer 5

well that is most likely that is a exit sing, you know they tell you where there is an exit ramp.