If his carriageway ends he'll have to stop and wait for

a safe gap to pull into.

Here in Norwich we have the usual stupid two lanes up to a set of traffic lights then straight after the lights the right lane goes into the left lane, in my opinion we drive on the left in this country so the left lane takes priority over the right. and its always the same you come up to the lights and they are on red and if car approaching see a lorry in front of them in the left they automatically race to get in the right lane and barge their way in once they have gone through the lights as they don't want to get stuck behind the lorry and they blatantly know the right lane finished after the lights so push their past and then in front of the lorry. although they don't do it to me as I will not allow them in and if they want to right their car off down the side of my lorry please carry on you will come off worse and my car sits in the carpark back at the depot.

You've revived an 11 year old post.

Observation, anticipation and courtesy. Three things you should have as a "professional driver".

It sounds like the planners have deliberately designed the junction to allow faster accelerating cars to get past lorries.

Perhaps you need to drive a little differently? After all, its only for 50 yards or so.

they automatically race to get in the right lane and barge their way in once they have gone through the lights as they don't want to get stuck behind the lorry and they blatantly know the right lane finished after the lights so push their past and then in front of the lorry. although they don't do it to me as I will not allow them in and if they want to right their car off down the side of my lorry please carry on you will come off worse and my car sits in the carpark back at the depot.

And why would they want to get stuck behind a lorry when they have an opportunity to get past? Also the lane doesn't "finish" after the lights does it? it merges....big difference.

"I do admire British politeness but in this case it’s misguided." Spot on. Again and again there's an inbuilt "queuing/courtesy instinct circuit" which overrides all other considerations - "How DARE some Johnny-come-lately take advantage and cut in front of ME, when I've been patiently queuing in this interminable lane for at least 4 minutes, grrr... I'll show him....." (If the "Johnny" happens to be in a German-badged executive car, it seems to send certain drivers into apoplexy.)
Headlamp flashing is almost never used in its proper Highway Code Rule 110 sense, since the "after you" function is more valued: flash a 44-tonner before overtaking him on a continental motorway and he's more likely to notice you and NOT pull out; do it on a British motorway and you'll likely cause a massive pile-up.

That's the way to do it.

www.dailymail.co.uk/news/article-6316533/Land-Rove...l

Its quite funny. The driver of the Landy was appealing for witnesses on a Sheffield based web forum. He was claiming the BMW deliberately went into him.

When this footage came to light the forum deleted all evidence that the thread existed!