On Friday, 21 November 2014 22:32:05 UTC, Jarle Hammen Knudsen wrote:
On Fri, 21 Nov 2014 22:19:04 +0000, Paul Corfield
wrote:

I think TfL schedule the Overground services fairly loosely with
recovery margins to ensure good time keeping. I agree that the service
can be / feels slow on the ELL core.

Is good time keeping along the route important? Instead of having
faster journeys when possible with more recovery time at the ends.

Very much so, of the 4 southern routes only the single stop branch to New Cross
doesn't have to fit in with other services. Good timekeeping is also important when
each branch only has a 4tph service - it's only between Highbury & Islington and Surrey
Quays that it's truly a "turn up and go" service.