Councillors are demanding action be taken over traffic issues at a notoriously busy roundabout.

The campaigners have started a petition requesting that Hertfordshire County Council makes the traffic lights at the Dome Roundabout active only when required by pedestrians, therefore making it a “free-flowing junction”.

Launching their campaign to ease congestion on St Albans Road, former Liberal Democrat parliamentary candidate Ian Stotesbury said: “For far too long residents have to put up with nightmare queuing traffic along St Albans Road.

“At off-peak times, traffic on Longspring is nearly always backed beyond Beechwood Rise and in Bushey Mill Lane, nearly always as far back as Parkgate Road, and always beyond the Sandringham Road junction.

“This is a cause of much air pollution. On top of that, the changes made at the Dome by the county council have failed to improve traffic flow.”

Cllrs Hastrick and Giles-Medhurst say that a “lack of coordination and link of different signals” at the roundabout is leading to extra congestion.

Cllr Hastrick added: "The lights at the exit from the Asda complex do not appear to be timed to other lights such as at the Dome.

"The Dome lights seems to go red when no pedestrians are crossing – the whole thing is a traffic engineering mess.”