In March 2015, the Highways Agency published its Route Strategies (RS). The South Coast Central RS is the one that covers the A27 and A259 and incorporates work from the Feasibility Study:
The Highways Agency has split the strategic road network into 18 areas for the purposes of managing road investment, which can include maintenance as well as new roadbuilding. These areas do not always make sense on the ground with the route along the south coast split into several different areas.
To understand how they are approaching this work see the map.
As you will see (going west to east) the:
- A35 is part of the South West Peninsula RS
- M27 & A31 is part of the Solent to Midlands RS
- A27 & A259 (to Brenzett) & A2070 is part of the South Coast Central RS
- M20 to Folkestone is part of the Kent Corridor to M25 RS
Previous work that the Highways Agency have done to date can be found here