Sutton Junction North_1966
From the period when Sutton Junction South box closed (28 February 1960) until Sutton Forest Crossing went Automatic Half Barrier (AHB) on 10 December 1967. the only extra diagram we have is just this slightly enhanced version of what Owen copied from my on-site drawing dated 18 January 1966.
What we don't know is what would have happened if the GF was used after Sutton Forest AHB was installed. This because anything shunting in/out of the branch would start the barrier sequence at Sutton Forest Crossing, so maybe the GF was never used after 10 December 1967 or Sutton Forest Crossing AHB had to be into local control and stopped from operating?????
Sutton Junction North_1966
From the period when Sutton Junction South box closed (28 February 1960) until Sutton Forest Crossing went Automatic Half Barrier (AHB) on 10 December 1967. the only extra diagram we have is just this slightly enhanced version of what Owen copied from my on-site drawing dated 18 January 1966.
What we don't know is what would have happened if the GF was used after Sutton Forest AHB was installed. This because anything shunting in/out of the branch would start the barrier sequence at Sutton Forest Crossing, so maybe the GF was never used after 10 December 1967 or Sutton Forest Crossing AHB had to be into local control and stopped from operating?????