Assertion: bus's route | /r/HasProperty | operated by modern driver-only vehicles
Facets:
value: since the late 1980s
type: TEMPORAL
Source sentences:
text: Though the majority of bus services in the London metropolis (and all routes outside the central area) have been operated by modern driver-only vehicles since the late 1980s, as of 2003, twenty regular routes retained Routemasters and conductors.