A video showing a lorry straddling both lanes as it drives through roadworks on a busy road has sparked a fierce debate online.
Footage taken at around 7.30am on Tuesday shows the wagon straddling both lanes as traffic approaches the A55 roadworks.
Vehicles were unable to move past the lorry as they drove along the carriageway.
The footage shows vehicles around 200 yards from the point at which the two lanes merge into one, where the lorry is seen driving in between the left and right hand lane, reports NorthWalesLive.
At one point in the video, which was captured by Gareth Jones, a car squeezes past the lorry in the right hand lane before driving on towards the roadworks.
Mr Jones told North Wales Live he thought the driver was moving between the two lanes to prevent vehicles going past.
He posted the footage on the A55 Traffic, Incidents, Information Facebook group, which has led to a fierce debate on whether the lorry driver was in the right.
The main point of debate was whether the driver was right to slow other cars in the right hand lane – an issue that has come up several times among motorists since the five-week roadworks began.
People have regularly claimed motorists are “pushing in” when they head down the right hand lane and merge.
Following the release of Tuesday’s video, some people claimed the driver was doing the right thing by preventing motorists from heading to the point where the lanes merge.
One person said: “Is that because the lane narrows and gives you warning for about one mile and people fly down the outside and get in 50 yards from the bollards but he’s queued since it said, so he’s stopping those that want to get there quicker and leaving it last minute causing further tailbacks in lane one all because they can’t get in and filter and want to get there quicker?”
Another said: “Personally I applaud truck drivers or buses doing this in circumstances of merging into one lane everybody keeps moving not just sitting at a standstill while idiots think it’s clever to speed past and dive in last minute causing accidents.
“That’s why the signs are there MERGE into one lane everyone keeps MOVING.”
But the majority stated that drivers heading to the end of the road lane before merging were in the right – and the lorry driver should not have been trying to “police” other motorists.
One said: “And exactly how many comments explaining the meaning of zip merging does it take on this page to get people to understand it?
“Judging by some comments even words of one syllable wouldn’t get the message through.”
Another said: “People need to read the signs approaching the road works, it clearly says use both lanes.”
And another said: “I think it’s time drivers who don’t understand the zip systems should refer to the Highway Code.
“There’s nothing wrong in refreshing your knowledge.”
According to Traffic Wales, motorists should use both lanes as they make their way towards the roadworks, before merging “in turn”.
In a recent Twitter post, they said: “Please adhere to the road signs and use both lanes to merge in turn when approaching a lane closure for roadworks.
“Blocking a lane causes congestion, lengthens the queues and is an inconvenience to everyone.”