please empty your brain below

Just a heads-up, London Fields is Overground, not TFL Rail.

dg writes: That's why it's in brackets.
If you take the average of ALL the coordinates of the different services, how much would it differ from the average of the averages that you have calculated so far?
Do your National Rail stations include Overground and TfL Rail? Where would the centroid be if you count only the privateer-operated ones?
I wonder whether the long northern arms of the met and bakerloo lines pull the average tube station up to st John's Wood. Would calculating the median instead of the mean of coordinates would give a significantly different result ?
Are you sure about Crossrail? If Westbourne Park is the central point on the current incomplete line, the Reading extension will take that point further westward from Westbourne Park and thus also from Paddington.
I see it's an asking questions kind of day.

Ray: by very little.

Mystery questioner: removing Overground stations shifts the rail centroid to Loughborough Junction, which is unexpectedly far south.

Boneyboy: the median tube station is also St John's Wood.

Ian: Westbourne Park will be the central point "when Crossrail is finally complete".
Westbourne Park isn't planned to be a station on Crossrail though?

dg writes: That's why it's in brackets.
Do Bank and Monument count as one tube station in your calculations or two?

dg writes: Two. This makes only 10m difference to the final results.
Transport related nerd porn on a Monday morning, checking on Streetview, this bus stop wasn't there in March 2018, it might be the next stop has been moved south, or the stop before (by the bridge) has been moved north.

OpenStreetMap shows four stops on this section northbound instead of three, so are probably showing the old and new positions.

This does raise the possibility that the TfL data lists the old position instead of the new one.
The Ethelred estate looks to be nearer Kennington, or should I say (Kennington)? - than Vauxhall.

dg writes: The nearest National Rail station is Vauxhall.

I would guess that the average of all the co-ordinates for all modes would be very close to the average bus stop, given the overwhelming number of data points in that subset.
Just been looking at the 'time travel' feature in Streetview, until recently the bus stop never existed, it was installed at some point between October 2015 and May 2016, and assuming this is the same one, it got relocated approx. 200m further south since March 2018.

Note that between September 2017 and March 2018 the central refuge near the stop was also removed.

What with all the coverage of bus stop 'M' we missed out on this saga.
Westbourne Park wiil become a crossrail station. Using Paddington low level as a terminus will not work, and this will be admitted some time this year. Building of station facilities at Westbourne Park will then commence and will delay opening of the line for at least another year.
How about the most average station by Tube line?
(e.g. most average Victoria line station etc.)
Most average Bus Stop M?

dg writes: St George's Road, outside the Imperial War Museum.
This is most definitely not your average blog!!
Thanks DG for researching and answering my question about means and medians.
Would I be right in saying that the most average TfL Rail station that's actually served by TfL Rail is Liverpool Street (and likewise the most average Crossrail station served by Crossrail will be Paddington)?

dg writes: You would indeed.
Liverpool Street is the closest TfL Rail station to approximately 20% of Greater London.

DG, If the proposed Tram extension to Sutton and the (abandoned) proposed extension to Bromley existed, would west Croydon still be the average stop?

dg writes: No.
Would it relatively easy to weight the datapoints in the various sets by usage?

dg writes: No.
What about the most average London airport?










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