The Marks Farm roundabout, A120 is partially blocked due to an obstruction on the road, traffic monitoring systems report. Traffic is queuing northbound on the A120 Braintree bypass, from the Marks Farm roundabout towards the slip road from Notley Green – about two-and-a-half miles. Map - AA Live Traffic map is showing the major congestion on Braintree and the A120(Image: AA Live Traffic Map)Congestion is also building on A131 southbound and on A120 westbound, Coggeshall Road, from the Marks Farm roundabout to Bradwell. Motorists are advised to avoid the area. Follow our live blog for more: LIVE: Traffic on A120 after Marks Farm Roundabout blocked | Braintree and Witham Times