Police are appealing for dashcam footage after a pedestrian was hit by a car on the A12 in Essex.
It happened on Easter Sunday at Junction 28 near Colchester around 8.50pm.
A man was taken to hospital with serious injuries.
Officers are also appealing to anyone who may have passed the junction at that time.
Plans to install new traffic lights on the A12 in Ipswich have been announced ahead of a major development to reduce congestion.
Two thousand new homes are due to be built around Adastral Park at Martlesham Heath.
It's hoped a new traffic light junction between the BT and Foxhall roundabouts will help cope with thousands of more vehicles.
A part of the A12 in Essex has been closed as Essex Police deal with an injured woman on the carriageway.
Officers were called at 3.30pm to reports of a person on the road at Margeretting.
A roadblock has been put in place on the London-bound carriageway with traffic being diverted off at junction 15 for Harlow/Chelmsford. On the north-bound carriageway a rolling roadblock is in place.
Police are asking people to avoid the area.
Police have confirmed the driver of a lorry which crashed off a bridge and onto the A12 below has died.
The lorry burst into flames after landing on the southbound carriageway, near Witham, just before 3.45pm on Wednesday.
Essex Police said a man in his 30s was pronounced dead by paramedics shortly after the crash and his next-of-kin has been informed.
The road is likely to remain closed, southbound, between Marks Tey and Boreham until lunchtime Thursday.
A weekend closure of part of the A12 has been put back a week.
The trunk road at Kelvedon in Essex will now be closed the weekend of 4 and 5 February so that repairs can be made to the Ewell Bridge.
Drivers heading south to London will be taken on a 22-mile detour before rejoining the A12.
Dates of further closures will be announced soon.
The government has announced the timetable to widen the A12 in Essex.
The main trunk road from London to East Anglia through Chelmsford, Colchester and Ipswich will be widened from two lanes to three.
The Chelmsford MP Sir Simon Burns has been told by Transport Minister John Hayes that work on the section from Boreham near Chemlsford to Colchester is expected start by March 2020.
The stretch from the M25 to Margaretting will be the next stage of the project and is expected to begin between 2020 and 2025.
‘Widening the A12 from the M25 to Chelmsford and from the Boreham Interchange to Colchester was an election commitment and I am delighted that the work to the North of Chelmsford is expected to commence by March 2020.
"This work is badly needed to relieve congestion and improve connectivity on the main feeder road from London to the East of England and when completed will improve connectivity to and from Chelmsford.
New investment could be on the way to improve one of East Anglia's major roads.
There are plans to improve the stretch of the A12 between Colchester and Ipswich which could mean widening the road to three lanes.
It's already been announced the section between Marks Tey and Chelmsford will be widened effectively turning the A12 into a motorway.
80,000 vehicles use the A12 through Essex and Suffolk every day so it is no surprise the main road connecting villages, towns and cities across our region is regularly congested.
Click below to watch a report by ITV News Anglia's Serena Sandhu
The A12 in Essex is blocked in both directions with big queues building up because of a car fire at J24 (Kelvedon North).
Fire crews battled to rescue people trapped in cars in a ditch on the A12 - for an exercise to see how they'd cope with a major crash.Read the full story ›
A man has been left with life-changing injuries following a crash in Essex in which five people were hurt.Read the full story ›