THE chief of the AA has called for an investigation into why three lanes of the M25 were closed for almost a day after the road collapsed.
Most of the anti-clockwise stretch of the busy motorway was closed near Junction 9 from the early hours of Friday until 5.30am on Saturday morning.
A section of the road collapsed leaving a large pothole, after a section of the carriageway failed to set properly following overnight maintenance undertaken by Highways Agency staff.
The closure meant travel chaos for thousands of motorists all day, with three-hour queues back to Junction 12 and traffic problems in surrounding towns as drivers searched for alternative routes.
Now the president of the AA, Edmund King, has called for an investigation.
Mr King said: "The M25 is critical to the nation and [Friday's] incident highlights just how dependant we are on it to function 24/7.
"There must be a thorough investigation into this incident. It is disappointing that not only did the road fail but it placed many drivers in danger and also reportedly damaged a number of vehicles.
"If this happened on the railways passengers could claim compensation. As it has happened on the roads drivers just have to put up with it."
One motorist, Michael Parish, 52, told the Mirror no-one from the Highways Agency or any other agency informed drivers of what was happening.
He added that no-one had been round with bottles of water or other sustenance for the beleaguered occupants of cars who moved just two miles in two hours, and problems had been exacerbated by drivers occupying the three lanes which were closed off.
He said at the time: "Traffic is being signposted to the only remaining lane, which is open following this morning's collapse of the road surface.
"But drivers are ignoring the lane closure signs and forming a bottleneck where there is only one lane open."
Andrew Broughton, a Highways Agency spokesman said: "Safety is a top priority for the Highways Agency and its contractors; failures of this type are extremely rare and we are taking it very seriously."
He said an investigation into what happened is ongoing.