Cross hatching on motorway slip roads - greenhey
Can anyone confirm for me whether crossing the cross-hatching markings at a slip road an offence?
My understanding is that they exist to ensure merging traffic enters the traffic flow at the corect angle. If people drive across them they are often trying to enter at an angle closer to 90degrees in relation to the existing traffic.
I see this happening a lot - for example where the M40 enters the anticlock M25
Cross hatching on motorway slip roads - BazzaBear {P}
If the area is bordered by a broken white line, you should not enter the area unless it is necessary and you can see that it is safe to do so.
If the area is marked with diagonal stripes and bordered by solid white lines, you should not enter it except in an emergency.
If the area is marked with chevrons and bordered by solid white lines you MUST NOT enter it except in an emergency.

I believe the ones you are talking about would be covered by the 3rd rule there.
Unfortunately, some people's definition of an emergency is 'I'm in a queue of traffic, and believe myself to be more important than the other people in it'

The above taken from www.highwaycode.gov.uk BTW
Cross hatching on motorway slip roads - Twizit
I take it from the reply that you therefore shouldn't cross the curbstones and grass further up that separate slip road from motorway?!

Many thanks to the Golf driver that did this in front of me last week. M25 coming off onto A3 roundabout. I'm heading up sliproad, Golf realises too late that it's her junction. Promtly turns left cross country across curb stones and mud / grass. Chucks half a field of crap over my car, swerves violently into slip road, nearly looses it and causes me to emergency brake (whilst trying to clear windscreen of mud thrown up). Not best pleased - funny how she wouldn't make eye contact when we pulled up alongside her at traffic lights.....