Poor traffic management around roadworks in Dundee city centre left pedestrians at risk of injury.
Health and safety officers from Tayside Contracts and Dundee City Council swooped on the Nethergate on Monday after seeing how traffic was being directed around the site on CCTV.
Barriers set up to divert pedestrians away from where resurfacing work was being carried out put them at risk of being involved in a collision with vehicles.
The Nethergate roadworks caused huge delays for traffic when they began on Monday.
One motorist said he had see hot tar being removed from the road and dumped on to a lorry over the heads of pedestrians, although this was strongly denied by Tayside Contracts.
A spokesman for Tayside Contracts said: “Something was brought to our attention in the way the traffic management was set up.
“We got our health and safety team and our operational managers to look at it.
“There were some elements that left room for improvement – a barrier that let pedestrians through should have been closed.”
He added: “It was not something that had anyone in a panic, but it was something that needed addressed.”
The Nethergate is being resurfaced between West Marketgait and South Tay Street.
The work will last for another two weeks and Mr Wylie said he did not believe the incident has caused any further delays to the work.
There was no work on the site on Tuesday – they day after the incident – but Mr Wylie said this stoppage had always been planned as part of the works.
The work has caused delays for motorists all week.
Temporary traffic lights have also been set up at Arnhall Drive on Perth Road as part of work to replace gas mains.
Drivers have faced queues of up to 15 minutes in both directions as a result of roadworks and traffic lights along the waterfront and West End.
On Monday queues stretched as far back as Invergowrie for traffic heading east.
The resurfacing work is expected to last for another fortnight.
West End councillor Fraser Macpherson said: “If an incident has occurred it is important that lessons are learned.”