Durham County Council has finalised plans for traffic lights at the notorious Rainton Gate junction. The press release is available here: A690 junctions PM
UPDATE: Durham County Council have advised work will commence 17 April 23.
Other relevant documents:
Letter from Mary Foy MP to Durham County Council (DCC): Rainton Gate Second Joint Letter Nov 22
Section 278 Agreement with the developer. Link to the web site entry
Joint letter from Mary Foy MP to DCC