Dave Arquati wrote:

The ON map is very similar, just adding in the useful frequency element.

Speaking of which, does anyone know what's happening to the ON? The
website has never been updated, but I've noticed the orange and grey
information boards appearing at Tulse Hill and Gipsy Hill (albeit
without ON branding) and Brockley and New Cross Gate seem to have the
line diagrams (though I don't think they were on the original routes).