An authority does not have power by virtue of this section to place a bin or other receptacle on a bridge over a railway, or under a bridge carrying a railway over a street, or within 10 feet of the abutments of a bridge carrying a railway over a street, except with the consent of the railway undertakers concerned.
An authority shall not exercise the power conferred by this section so as to obstruct or render less convenient the access to or exit from—
For the purposes of subsection (3) above, the undertaking of a universal service provider shall be taken to be his undertaking so far as it relates to the provision of a universal postal service.
Nothing in this section is to be taken as empowering an authority to hinder the reasonable use of a street by the public or any person entitled to use it or as empowering an authority to create a nuisance to the owner or occupier of premises adjacent to a street.