Maintenance Standards
Infrastructure owners specify permitted variances for actual gauge, and the required interventions when non-compliant gauge is detected. For example, the Federal Railroad Administration in the USA specifies that the actual gauge of track that is rated for a maximum of 60 mph (96.6 km/h) must be between 4 ft 8 in (1,422mm) and 4 ft 9½ in (1,460mm).
Read more about this topic: Rail Gauge
Famous quotes containing the words maintenance and/or standards:
“It is an injustice that an old, broken, half-dead father should enjoy alone, in a corner of his hearth, possessions that would suffice for the advancement and maintenance of many children.”
—Michel de Montaigne (1533–1592)
“To arrive at a just estimate of a renowned man’s character one must judge it by the standards of his time, not ours.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)