Where necessary in order to provide unobstructed air space for the landing and taking-off of aircraft, in case of airports, heliports and restricted landing areas acquired or operated by the authority, the executive director or, if a taking is required, the Commissioner of Transportation, and, in case of municipal airports, the municipality, is granted authority to acquire, in the same manner as is provided for the acquisition of property for airport purposes, easements through or other interests in air space over land or water, interests in airport hazards outside the boundaries of the airports, heliports or restricted landing areas, and such other airport protection privileges as are necessary to insure safe approaches to the landing areas of such airports, heliports and restricted landing areas and the safe and efficient operation thereof. The executive director or, if a taking is required, said commissioner, is empowered to acquire in the same manner the right of easement for a term of years or perpetually to place or maintain suitable marks for the daytime marking and suitable lights for the nighttime marking of airport hazards for the purpose of maintaining and repairing such lights and marks. No person shall build, rebuild or create or cause to be built, rebuilt or created any object, or plant, cause to be planted or permit to grow higher any tree or trees or other vegetation, which encroach upon any airport protection privileges acquired pursuant to the provisions of this section. Any such encroachment is declared to be a public nuisance and may be abated in the manner prescribed by law for the abatement of public nuisances, or the municipality in charge of the airport, heliport or restricted landing area for which airport protection privileges have been acquired as provided in this section may go upon the land of others and remove any such encroachment without being liable for damages in so doing. Before exercising any of the powers conferred herein, the executive director shall establish and publish in detailed form, available to the public, the standards which the executive director has adopted and will apply in making a determination that public convenience and necessity require the taking of any parcel of land or interest therein.