Assertion: railroad's train | /r/CapableOf | use track
Facets:
value: occasionally
type: DEGREE
Source sentences:
text: However, it may be necessary to select a compromise value at design time, for example if slow-moving trains may occasionally use tracks intended for high-speed trains.
text: This allows trains to use one track where the other track is out of service due to track maintenance work, or a train failure, or for a fast train to overtake a slow train.