and services, parks, playgrounds, off street parking lots, traffic or fire control and police communications systems and other like improvements necessary for carrying out the objectives of the urban renewal project, together with such site improvements as are necessary for the preparation of any sites for uses in accordance with the urban renewal plan, and making any land or improvements acquired in the area of the project available for redevelopment or rehabilitation by private enterprise or public charitable agencies, including sale, initial leasing or retention by the urban renewal agency itself for residential, recreational, education, hospital, commercial, industrial, public, charitable or other uses in accordance with the urban renewal plan. ''Urban renewal project'' may also include the construction by a housing authority of any of the buildings, for residential use, contemplated by the urban renewal plan and the repair, removal or rehabilitation by an operating agency of any of the buildings, structures or other improvements located in the area covered by the urban renewal plan and which, under such plan, are to be repaired, moved or rehabilitated. ''Urban renewal project'' may also include acquisition by any means other than eminent domain and not involving public expenses of land outside of but adjacent to or in the immediate vicinity of an urban renewal project to be developed for hospital or educational uses under the urban renewal plan, whenever such acquisition is for the purpose of making such land subject to the urban renewal plan and the hospital or educational institution involved consents thereto. The term ''redevelopment'' shall include ''development''.