368. The Regional Government may make ordinances(1) to prescribe a uniform type of highway and passageway signals to be used by all municipal corporations; and
(2) to determine minimum standards for road and street construction and maintenance.
The municipal corporations shall retain their competence in these matters until the Regional Government exercises its competence respecting such matters and to the extent that the Regional Government has refrained from doing so.
Any by-law of any municipal corporation in the territory shall be in conformity with the ordinances of the Regional Government respecting these matters.
No by-law of any municipal corporation in the territory respecting such matters shall validly impose standards which are inferior to those mentioned in the ordinance of the Regional Government.