Police are appealing for witnesses after the incident in Strawberry Lane at 5.30pm on Thursday.
An altercation took place between a motorist and the marshal who was controlling traffic.
The driver sped through a road closure barrier, with the woman being dragged along for a few metres before falling into the road.
A dark coloured Audi left the scene.
Beach bus to Bovisand returns
Bus 54 will take passengers from Royal Parade
Plymouth country music bar seeks licence
Discussions to take place
Complaints about odur from Devon food factory
'Bad smell complaints' revealed
Devon's hospitality sector against possible tourist tax
Some businesses are worries
Waste Carrier fined for dumping tonnes at Illegal site
He was already warned
Barnstaple shop slapped with three-month closure
Haul found after uncover operation
