Emergency services were called at 12.25pm yesterday after reports that a grey Renault Master van had been in collision with the man on the onslip to the A30 eastbound carriageway at the Alphington junction.
The victim, a man in his 50s and from Crewkerne in Somerset, sustained fatal injuries and was pronounced deceased at the scene. His next of kin have been informed.
Sgt Rich Newton of the Serious Collisions Investigation Team said: “We are appealing for anyone who was driving past at the time and saw a man changing the wheel of a light blue vehicle that was stationary at the top of the onslip. The man was wearing a blue shirt.
“We are particularly keen to hear from any person who may have dash-cam footage of the vehicle at the top of the onslip.
“A full investigation of the scene was completed and enquiries are continuing to determine the cause of the collision.”
A 32-year-old man from Exeter was arrested on suspicion of causing death by dangerous driving and has been released under investigation.
Anyone who can assist is asked to contact police via email@example.com or by phone on 101, quoting log number 303 of 26/03/18.