The Council shall at all times direct the distribution of space in, over, under, or across all streets or public grounds occupied by public utility fixtures. All rights granted for the construction and operation of public utilities shall be subject to the continuing right of the Council to pass reasonable regulations for the operation of such utilities, including the right to require such reconstruction, relocation, or discontinuance of the appliances used by the utilities, in the streets or public grounds, as shall, in the opinion of the Council, be necessary in the public interest.