So you are not saying you drove past a red X, then, but rather concluded that the restriction had been removed behind you?
The system could do with being more clever in that case, by not removing the restriction (whatever it is) until the last car to pass it with it showing passes the next one. Or alternatively more repeaters so you can always see one.
What I would probably do is remain in lane 3 but keep up with the traffic in front which is in the same position.
I would not however drive past a red X because that shows the restriction to still be in place.
I did not want to break the speed limit. In the comfort of my own home I then wondered if those behind me had not seen the same sign as me because possibly the restriction had been removed.
Let other people worry about their own problems. I would not breach the Red X. I might accelerate slightly to around 45mph, but I don't want a speeding ticket and somebody else's impatience is not my problem.
If traffic was coming past in lanes I believed closed, I would check the next gantry and obey the signal it presented.
I moved back into lane 1 as soon as the next blank gantry appeared but we kept a look out incase that gantry had failed.
Assuming this is the A1(M) heading south approaching the A14, with Red X on Lane 1 and 2, and 40 indicated on Lanes 3 and 4:
1) not in any circumstances enter the Red X Lanes. There could be an obstruction, potentially unseen (eg big pothole). If caught that’s a guaranteed driving offence, with no option of a fixed penalty or ’Awareness’ course.
2) stay in Lane 3 or 4
3) travel at around 60mph, keeping a sharp lookout for slowing traffic.
3) may seem a little unusual. But on this stretch if the A1 there is no variable speed limit, and the 40 indicated on the overhead gantries is advisory, not mandatory and not enforceable. (Also, no cameras).
I think you should rethink all that. You're in danger of nearly causing an accident - just like a similar idiot I saw on the M1 recently.
I had a choice between going through a red X and breaking the speed limit. Did not feel like I had any other choice.
I must admit, having never had a driving offence, I do not know the relative merits of which offence causes the least damage to the licence/wallet. I just go on not breaking the rules - which seems to be getting harder and harder as there are more rules !. I know people who treat speeding offences as a hazard of driving and know where the cameras are !. I prefer to believe the speed limit is there for a reason and stick to it.
I have always understood what the red X is for and also the version with the red light flashing (left to right iirc). I have never before knowingly gone through one but I have watched others go through. I was very worried about having to return to lane 2 BUT this time I was under pressure to get out of the way.
Some of my logic was that if I had misread the signs I would be better off going slowly in lane 1 or 2 out of the way BUT keeping an eye out just in case.
I had to weigh up the possibility that there really was no hazard in lane one or two (as is usual) against the very obvious hazard I was part of by causing an obstruction in lane 3 to others who were going a lot faster than myself. I had to make a decision while I was driving not later on whilst sitting in my arm chair at home. My passenger agreed. I also had to assume that I was going slowly enough and cautiously enough that I could stop in time and I had my passenger watch out as well.
@Bald Rick - I now wonder if it was an advisory speed limit. I cannot recall but I thought it was legally binding (I know these have the red circle surround) but if it was advisory then it would (sadly) explain why the vast majority of cars were still going a lot faster than me. I really was the odd one out so much so I wanted to believe I had mis understood the signs but my passenger assured me it was 40mph and the left two lanes were shut. Looking in the mirror was very alarming - I was collecting a lot of cars behind me that were manoevering late. So my instinct was to get out of the way. My passenger who is also a driver agreed I had to move over - to me it was the lesser of two evils.
If the signs were generally more believable then I would have felt more inclined to stick at 40 mph in lane 3 and ignore the risk. Then anyway perhaps there would have been less risk as others might have obeyed. That is my point - the signs are so unreliable people tend to doubt/ignore them. I prefer to stick to the rules even if I am the odd one out BUT in this case it felt very dangerous to do so.
To this day I am none the wiser as there was nothing in either of lanes one or two.