The latest phase of improvements at Chelmsford's notorious Army and Navy roundabout will start next month.
Work to create an additional lane along Parkway between the busy junction and the Odeon roundabout, and extend the left-turn slip lane will begin in September and is expected to continue until April next year.
The development will also include creating a wider footpath and cycle path, a two-stage signalled toucan crossing, and re-locating the existing pedestrian crossing further west, at a safer distance from the roundabout.
County councillor Rodney Bass, cabinet member for highways and transportation, said: "By increasing capacity, this important new scheme will ease traffic from the Army and Navy roundabout heading both to the city centre, West End, Chelmer Waterside redevelopment, and away from the city. It will also improve safety for all who use the roundabout. Following extensive planning and traffic modelling, the works are taking place at night to minimise disruption."
He added: "Inevitably though, there will be some impact on the road network in the short term. We do ask for patience and understanding from residents and road users. The work is being carefully co-ordinated with other projects in the area and also with the impending reconstruction of the A138 Chelmer Viaduct and River Bridge."
