Open Plus/Open+ models (enabling card-entry access outside of staffed hours) are increasingly being adopted either to extend opening hours, or to replace staffed hours.
Mae modelau Agored+ (sy’n galluogi mynediad â cherdyn y tu allan i oriau staff) yn cael eu mabwysiadu fwyfwy naill ai i ymestyn oriau agor, neu i ddisodli oriau staff.