A47 stretch in mid-Norfolk will not get average speed cameras
Plans to reduce the speed limit and install average speed cameras on a section of the A47 have been dropped.
National Highways said its proposal between Little Fransham and Dereham in mid-Norfolk was "no longer being taken forward".
Its regional director Martin Fellows said: "We have been unable to agree a way forward on the proposed Little Fransham to Dereham safety scheme with our stakeholders, including Norfolk County Council.
However, we remain fully committed to delivering safety improvements on the A47."
Norfolk County Council said the road needed "physical changes" to make it safer.