Assertion: track | /r/HasProperty | measured
Facets:
value: from wheel flange reference line
type: OTHER
Source sentences:
text: The tolerances of each parameter varies by the track class of the track being measured.
text: In the case of a rail wheelset the "track" is called "wheel gauge" and is measured from wheel flange reference line to wheel flange reference line on the wheels of any rail car or tram.