Lincolnshire County Council has been warned there would be strong opposition to any bid to increase the speed limit on a section of the A153.
Vehicles are currently restricted to 40mph on a notorious stretch of road close to the village of Haltham.
However, the News has learned there are proposals in the pipeline to either lower the limit to 30mph - or increase it to 50mph.
Any increase would be introduced, despite the fact there have been two fatal accidents on that particular section of road in recent years.
It is just over a year since a 53-year-old local man was killed after his car was in collision with a petrol tanker.
County councillor Denis Hoyes, whose Woodhall Spa ward covers Haltham, said he could not believe an increase was even being considered.
He said: “I know the highways department is looking at either 50mph - or 30mph.
“I can’t believe they are even thinking about an increase.
“It is a dangerous stretch. There are two side roads where traffic pulls out onto the main road.
“The traffic comes down that main road at high speeds and there are a lot of heavy goods vehicles.
“If I had my way, it would be 30mph with double white lines to stop people overtaking.”
Coun Hoyes said he understood a decision would be announced next month.
One resident, who lives near Haltham, said she would back any measures to slow vehicles down.
She added: “It is a very dangerous road and there have been too many accidents.
“People have to pull out of the side roads but traffic hurtles along the A153 at incredible speeds.
“People also try and overtake, before the bends near the garage at the turning to Kirkby on Bain.
“The other problem is there are so many petrol tankers and lorries these days - more than ever. “
Peter Kirk, who uses the A153 to commute from Louth to Coningsby on a daily basis, said: “I’ve been using the route for over a year but it is confusing because there are so many different speed limits.
“The limit on the section near Haltham should be 30mph - and definitely not 50mph.”
The News asked the County Council for a comment but had not received a reply before going to press.