"Robin9" wrote in message
...

Incidentally if splitting the service to provide a safety margin is so
advantageous, why not use the idea to incorporate some of the extensions
to the London Overground that have been suggested in this forum over the
past few months. For example, instead of the current Richmond to
Stratford service, why not Richmond to Caledonian Road and Queens Park
to Stratford?

Because Richmond to Stratford is already about as straightforward as it
gets, an end to end route for LO into dedicated terminal platforms, even
though it is overlaid with freight movements.

What you are suggesting would add at least three more areas of complexity;
reversing at Caledonian Rd, additional flat crossing conflicting movements
at Camden Rd West Jn, and reversing at Queens Park, where the existing
service already has to be pathed with the Bakerloo line.

Also, you'd presumably expect to have space for more trains along the
section where the two routes overlap - if not you'd have to reduce the
number of departures from Richmond and Stratford...

Paul S