By this, I mean routes by which the origin and destination of the train does not interact with the TOC providing the service, nor is there any interchange to another service provided by that TOC.
I can think of a couple off the top of my head:
I can think of a couple off the top of my head:
- GWR: Greenford - W. Ealing (no interchange with GWR services, only London Underground and TfL Rail)
- LO: Upminster - Romford (no interchange with other Overground services, only c2c, Greater Anglia, TfL Rail and Underground)