A concerned grandmother is campaigning for safety measures after another crash on a busy road near a college and a school.
Maureen Davies from Threemilestone said it was only a matter of time before somebody was killed on the road between Truro College and Richard Lander school.
The latest crash involved a red Mazda sports car which came off the road on Friday morning.
Cornwal Council said it had carried out an “extensive investigation” into the issue and was reviewing the evidence.
Mrs Davies said: “How many people would react in time to get out of the way. Is the council waiting for somebody to get killed or maimed before they do anything?”
Mrs Davies was aware of at least four accidents on the stretch of road in the last two years and has been in touch with Cornwall Council.
She wants to see crash barriers put in place between the road and the pavement.
“I don’t want to sit back and do nothing,” said Mrs Davies. “It’s an accident waiting to happen.”
A spokesman for Cornwall Council said: “The council understands the concern which has been expressed by a local resident over a safety issue at this junction.
“We have already carried out an extensive investigation into the matter. However, as some of the options which have been suggested could have adverse safety consequences, a solution is not as simple as implied. We are reviewing the evidence to ensure we take the most appropriate action.”