Safety is to be improved on a section of the A47 after several fatal crashes when vehicles plunged into dykes.
More speed cameras are to be introduced on the A47 Acle Straight
A £1.6m project is to be carried out over the next two to three years along the A47 Acle Straight between Norwich and Great Yarmouth in Norfolk.
Other solutions such as widening the A47 will be kept under consideration.
The road will be resurfaced, visibility improved and better road markings introduced. Vegetation will be trimmed regularly and safety cameras installed.
Dyke relocation study
A Highways Agency spokesman said: "The effectiveness of these schemes will be monitored before deciding to trial any further measures.
"A number of fatalities on this road have resulted from cars leaving the carriageway and crashing into the adjacent dykes.
"In the long term there may be a case for moving the dykes to remove this risk.
"This would be necessary should widening the Acle Straight ever become a priority for the East of England.
"The Highways Agency will, therefore, carry out a dyke relocation feasibility study this financial year at a cost of £40,000."