An accident on the M42 southbound between Junction 2 and Junction 1 is currently causing delays.
300 permanent new jobs could be created if a proposed new motorway service area on the M42 is built, according to the Extra Motorway Service Area Group.
Plans for the £65 million investment near Solihull have been unveiled.
It would be located to the west of the M42 and south of Solihull Road, near to Birmingham Airport.
If planning permission is granted, work could begin in early 2016.
Police have confirmed the M42 has reopened near the junction 1 with the M5, after the 'police incident' there was resolved.
Traffic that was stationary is beginning to move, but the tailbacks ha got as far back as junction 2 on the southbound side, and onto the M5 on the northbound side.
Police are urging motorists to avoid the M42 near junction 1 where it meets the M5, as both directions are closed.
Traffic is stationary on both sides of the carriageway, back to junction 2 on the southbound side, and on to the M5 in the other direction.
Main carriageway closed and stationary traffic due to police incident on M42 in both directions at J1 A38 / B4096 (Bromsgrove).
Six vehicles have been involved in a collision on the M42 at around 7am this morning, northbound between junctions 3a and 3.
A spokesman for the West Midlands Ambulance Service said:
“Ambulance crews responded to a road traffic collision involving six vehicles. Three patients were treated from separate vehicles... The man, believed to be in his forties, was treated for a wrist injury...
... A woman in her forties was treated for neck and back pain. She was immobilised with the use of a neck collar and spinal board. Both patients were conveyed to the Alexandra Hospital in Redditch... A third patient was assessed by ambulance crews at the scene before being released.”
Parts of the Midlands' motorway network and a major A-road in Worcestershire were closed for nearly 27 hours this weekend, as a man threatened to harm himself on a bridge over the M42.
Many motorists took to social media to vent their frustrations at the delays.
This has led to criticism from mental health charities, who've called some of the tweets 'inappropriate'.
Helen Wadley, the Chief Executive of the Birmingham branch of mental health charity MIND said:
Chief Superintendent, Martin Evans, has said that police had no option but to close the M42, due to 'significant risk' to motorists.
Police have apologised to motorists and thanked them for their patience after the M42 was closed for nearly 27 hours this weekend.
They have also reassured people that the only way to resolve the situation was through 'careful negotiation and patience'.
The man who was threatening to harm himself on the A38 bridge over the M42 carriageway was safely detained under the Mental Health Act, and is now in hospital receiving treatment.
The M42 is now open after a 26 hour closure.
Police had closed the road due to a man threatening to harm himself on a bridge over the carriageway. The man has been detained safely.
Other roads in the area that had been closed are also now open.