All three lanes have been closed on the M42 northbound in Warwickshire after a crash.
It happened between J8 M6 and J9 M6 Toll / A446 (Curdworth / Coleshill).
Night-time work to increase the number of lanes linking the M42 to Birmingham Airport and the NEC will start today. When it is finished highways bosses hope it will improve journey times for airport passengers and people visiting attractions like the NEC and Motorcycle Museum.
The work involves widening the A45 Coventry Road eastbound to four lanes at the approach to junction 6 of the M42 and widening the roundabout to provide four lanes.
Lane closures will be in place from 20:00 each night and continue until 06:00 the next morning. There will also be occasional night-time full closures. The work will be completed in November.
The M42 motorway and the A38 have been closed for more than twenty hours due to a police incident.
Officers say a man threatening to harm himself is still on a bridge over the motorway.
The M42 is closed between the M5 and junction 1 at Bromsgrove.
The A38 Birmingham Road is closed northbound between Bromsgrove and the M42, and southbound between Catshill and the M42.
Rush-hour commuters faced major delays after three cars and an HGV crashed on the M42, knocking one driver unconscious.
Emergency services were called to the northbound carriageway, on the approach to junction nine in Warwickshire, at around 5.15pm yesterday.
One of the cars had suffered major damage to its front and rear end in the smash, and the driver was sitting in the front passenger seat having been knocked unconscious for a short while.
He was cut free from the car by firefighters and taken to University Hospital Coventry and Warwickshire for further treatment.
The lorry driver was assessed and discharged at the scene, along with a man in his 40s and two other drivers aged in their 50s and 20s.
They were introduced to ease congestion around Birmingham, but there are claims tonight that the growing number of speed controls on motorways are causing confusion to drivers - and have become a distracting danger.
But the claims are strongly disputed. The Highways Agency say there's evidence that variable speed limits have brought a dramatic fall in accidents. Watch the full report.
We've been asking drivers what they think to the managed motorways system used on the M42 and M6 near Birmingham where variable speed limits help to control traffic flow.
It's after they were criticised by a top motoring lawyer who branded them dangerous.
The Highways Agency have told ITV Central they have "no idea" why a top motoring lawyer would claim that managed-motorways are unsafe.
Mr Loophole, as he's known, has criticised the use of variable speed limits on managed motorways has suggested that actually increasing speed limits would be safer for drivers.
A lawyer that has criticised the use of variable speed limits on managed motorways has suggested that actually increasing speed limits would be safer for drivers.
Rachel Fletcher, from Freeman and Co, says faster speeds make traffic flow better, making the roads safer.
A motoring lawyer has criticised the use of managed motorways, saying they preoccupy and confuse drivers.
Rachel Fletcher, a director at Freeman and Co, says drivers are having to focus more on the signs than the road, causing motorists to be at risk.
The Highways Agency say "managed motorways" have been working well for some time on the M42 and M6 near Birmingham.
A "managed motorway" uses overhead signage to control speed limits and hard-shoulder running, depending on the level of congestion, to make journey times more reliable.
The Highways Agency website says: "We introduce managed motorways where it is the best solution to tackle congestion. We use the most appropriate methods and technology to ensure people can make their journeys reliably and safely."
Work is currently taking place on the M6 around Spaghetti Junction to implement the managed motorway system.