It was situated on the extension of the Elham Valley Railway from Barham to Harbledown Junction, on the Ashford to Ramsgate line.

[3] Passenger services between Canterbury West and Lyminge were withdrawn on 1 December 1940 and the line was placed under military control.

[1] The military established block posts at Canterbury South and Bishopbourne, under the control of the Royal Corps of Signals.

[6] A passing loop was installed in Bourne Tunnel, 3⁄4 mile (1.21 km) south of Bishopsbourne on which was kept a BL 18-inch railway howitzer, nicknamed the "Boche Buster".

[7] A curved siding was constructed at Charlton Park, south of Bishopsbourne from which the gun was fired.