The RHA is concerned about proposals to reduce the width of roads in Northamptonshire to prevent lorries using them.
The county council has said it has to save £140m over the next four years due to government cuts and that innovative ideas, such as narrowing, some roads would help save money.
A public consultation runs until 1 December.
Proposals also include 20mph speed limits and routes reclassified as “local lanes” to maintain the condition of the road surface.
A council spokesman admitted some of the ideas would have been unthinkable 10 years ago and letters had been sent to groups representing the logistics sector.
“This is leading edge, a little bit pioneering, a little brave in a way. There is a lack of money coming through to local government. It means it’s harder and harder to maintain the road network. The squeeze is considerable,” he added.
However, John Howells, RHA regional director, said CVs were on the roads because they needed to be.
“I am concerned about the narrowing. I think it will lead to more damage to the edges of the road. CVs will still use them to get to where they need to go.”
