and having means for providing occasional passage, e.g. for emergency vehicles

Full Title

Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact (arrangements for fastening signs or signals to safety barriers or the like E01F9/669; for forcibly arresting vehicles E01F13/00) > Continuous barriers extending along roads or between traffic lanes (crossable-lane separators E01F9/588) > and having means for providing occasional passage, e.g. for emergency vehicles