From Longman Dictionary of Contemporary Englishcentral reservationˌcentral reserˈvation noun [countable] British EnglishTTR a narrow piece of ground that divides the two parts of a motorway or other main road
Examples from the Corpus
central reservation• Central reservation systems Large groups of hotels which are linked by computer usually operate their own central reservation system.• In the case of a crossing split into two crossings by a central reservation each crossing should be classed as separate crossings.• Mr Clarke said he assumed it had done a U-turn across the central reservation.• Until recently the central reservation had deteriorated into use as a car-park.• She hid in bushes while the fiend ran to the central reservation before losing sight of her and driving off. 