That data is indeed missing. FWIW, though: the French Railway Corporation (SNCF) has had WiFi for some years in the high speed (TGV[0]) lanes (though they have

That data is indeed missing. FWIW, though: the French Railway Corporation (SNCF) has had WiFi for some years in the high speed (TGV[0]) lanes (though they have a data cap). I've had no issues with it so far[1,2]. That's a working solution in a ~320km/h (200mph) moving train as commercial offering. [0] https://en.wikipedia.org/wiki/TGV https://en.wikipedia.org/wiki/TGV [1] https://www.oui.sncf/tgv/services/internet-a-bord https://www.oui.sncf/tgv/services/internet-a-bord [2] https://www.sncf.com/fr/offres-voyageurs/tgv-inoui/connectez-vous-pendant-votre-voyage https://www.sncf.com/fr/offres-voyageurs/tgv-inoui/connectez...