(05 Oct 2023, 9:37 am)F114TML wrote Most likely be the 4 and 13 interworking then
4 & 13 interworking at Doxford Park...
........ 4 arrives and changes at Doxford Park Morrisons and runs via Hall Farm as it will leave as a 13 and vice versa......13 changes at Doxford Park Morrisons and runs via Mill Hill as service 4