schrodingers cat:
Lol Carryfast I wish I lived in your world. Unfortunately the world I live in has roads running at full capacity at most times. This means that when 2 lanes merge into 1 there is not enough room for everyone to move along at the same speed so traffic HAS to slow whether they merge 1000m before the cones or right at them. I agree that on the rare occasion that the traffic is not running at capacity merging well before the cones works and the speed can be maintained. However once the traffic has slowed the best thing to do is use both lanes up to the cones as recommended and used over the rest of Europe with a great deal of success.
As for blocking roundabouts sometimes you have to out push into the traffic flow in my busy old world because if you are in a queue onto a roundabout, waiting for your exit to clear would take until the end of rush hour so you would be blocking all the traffic entering the roundabout behind you. (I see you havent managed to find the bit of legislation that stated you should not enter a roundabout unless your exit is clear yet, keep looking 
). But no if I can avoid it I will not block other traffic.
You also state that extra lanes are there for overtaking and not extra capacity, again in my unfortunate world when the roads are getting to over-capacity, the extra lanes do have to hansle the extra capacity, you may have noticed if you ever get into a traffic jam that lanes 1,2,3,4,5 even 6 tend to run at around the same speed, one sometimes faster than the other, this is why greater minds than yours and mine decided to put 6 lanes in. They realised that if traffic did not get wide it would have to be long and the result of long would be to gridlock up everything further back that may not even want to use the really congested bit.
Now I think I have explained my thoughts logically and clearly maybe if you read this you will stop supporting the blockers.
Nothing logical about any of that.
Most of the issues concerning motorways with all lanes running at the same speed,and sometimes even with overtaking lanes running slower than the inside lane,at so called ‘capacity’,can be put down to zb lane discipline.
The ‘rest of Europe’ usually puts out no overtaking signs before lane closures which means that in most cases my idea applies,not yours,in that the traffic is already merged,at relatively high speed,before it reaches the closure,which means no slowing up is required,by traffic in the open lane/s,to allow all those idiots who want to use closed lanes to ‘merge’ at a relatively low speed to stop them running into the cones.
But roundabouts and junctions whatever just carry on doing it your way until some mad motor cyclist decides to go round the roundabout,or through a junction,at motor bike type speeds and suddenly finds the overhang of your truck in his way. 
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I recently took part in a wonderful discussion in which Carryfast argued with himself!!
