The provisions of sections 21 and 22 shall apply to the opening of the following works if they form part of, or are directly connected with, a railway used for the public carriage of passengers and have been constructed subsequent to the giving of a report by the Commissioner under section 22, namely:--
         (a) opening of additional lines of railway and deviation lines;
         (b) opening of stations, junctions and level crossings;
         (c) re-modelling of yards and re-building of bridges;
         (d) introduction of electric traction; and
         (e) any alteration or reconstruction materially affecting the structural character of any work to which the provisions of sections 21 and 22 apply or are extended by this section.