Polegatti Junction

I wonder if the residents of Polegate would like to talk to their elected politicians about a new dual carriageway for the A27 between their hometown and Lewes. The junction of the new A27 and A22 would require 'grade separation', and the preferred solution in current design guidelines is a three level interchange, likely to cover at least a square kilometre of land. And not likely to solve the problems for those turning into Eastbourne.

Where two major roads cross, a 3 level arrangement with a roundabout sandwiched between the two major flows, should be considered as an alternative to an interchange.  Its advantages are that both the overall land take and the carriageway area are greatly reduced. The disadvantages are that structure costs are high and if the turning movements become greater than predicted, operational problems such as queuing on the roundabout entries can result. If queuing does become a problem, segregated left turn lanes and restricted circulatory carriageway width should be considered before traffic signals are installed. The inclusion of a specific link, as a remedial measure to remove a heavy right turn movement, is rarely a practical solution on either cost or environmental grounds.