On 18 Mar, 23:36, "Richard J." wrote:
Gare du Nord in Paris is in a similar situation, having a large terminus
above ground and the RER through lines underground. The terminus has
platforms 1-21 (inter-city/international) and 30-36 (suburban), and the
RER below them has platforms 41-44. As with Kings Cross St Pancras, the
Métro platforms are regarded as a separate station.

Now is the chance for us to get it right. I suppose the only confusion
might arise when we get Thameslink 3-Billion, as I don't know how the
GN side will connect and where trains will terminate (some going to
King's Cross and some going through, via St Pancras)?

Jonathan