(05 Jul 2022, 8:51 pm)F114TML wrote Really?
They don't interwork with any of the Peterlee Locals (if they're meant to, someone needs to have a word), unless you're referring to passengers connecting to them? In which case you can still have an even headway between DP and Sunderland if you alter the timings.
I thought they interworked with 38/38A at Park Lane