A77/A75 Strategic and Economic Impacts Report
South Ayrshire, Dumfries and Galloway and Mid and East Antrim Councils are calling for action to improve the A77 and the A75.
These major trunk roads, which are the responsibility of the Scottish Government, are critical for connecting passengers and freight between England, Scotland, and Northern Ireland.
The roads, which run from Ayr to Stranraer and from Stranraer to Gretna, are mainly single carriageway, so heavy goods vehicles are restricted to a 40mph speed limit.
Congestion is also caused when the routes go through towns and villages and on the A77, travel can also be hampered by frequent landslips.
To highlight these and other issues, the Councils commissioned a Strategic and Economic Impacts Report.
The report estimates that full dualling of both the A77 and the A75 with bypasses at key towns, junction and railway improvements could generate £5 billion of positive benefits.
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The report also includes
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