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The tag highspeed=yes indicates that a railway track is part of .
The list of German high-speed rails can be found highspeed=yes are defined (de).(de) and (especially for newer tracks) (de). The conditions to consider a track to be high-speed tagged with
The USA's only high-speed rail by national standards are Amtrak®'s Acela Express® (reaching 150 mph (241 km/h)), Northeast Regional®, Keystone Service℠ and some MARC Penn Line express trains (the latter three services reaching 125 mph (201 km/h)). OSM says (to the right) "implies maxspeed ≥ 200 km/h." What the USA calls "high speed" depends on context or jurisdiction; see , as the subject is historical, complex and emerging. Also, there is a "lesser" high speed known as "higher speed" (than "conventional rail," often on Class 4 track, limited to 79 mph (127 km/h)). See Amtrak for "higher speed" regional routes on Class 5 (90 mph (145 km/h)) or Class 6 (110 mph (177 km/h)) track. Discussion asks whether highspeed=yes should be tagged on USA railway=rail with maxspeed=* between 80 mph (128 km/h) and 124 mph (199 km/h), concluding it should not. So, tag USA railway=rail with highspeed=yes only where passenger service reaches 125 mph (201 km/h) or greater. The USA calls these (passenger service maxspeed=* is 125 mph (201 km/h)), Class 8 track (150 mph (241 km/h)) and Class 9 track (220 mph (354 km/h)).