Details of plans to turn a 17-mile stretch of the A46 from Newark into a dual carriageway are being published.
It has been almost two and a half years since the A46 was dualled between Lincoln and Newark.
The latest scheme would see an extra carriageway added in both directions between Newark and Widmerpool, where the A46 meets the A606.
People can comment on the proposals - which go on view at Newark Library on Friday - until next March.
Tom Barry from the Highways Agency said: "When the scheme's in place we reckon that it'll reduce average journey time by a quarter of an hour which means it'll be significantly more than that in the peak hour and slightly less in the inter-peak period and it will save something like 1,450 injury accidents."