(1) The Commissioner shall, from time to time, cause all public streets vested in the Corporation to be levelled, metalled or paved, channelled and altered or repaired and altered or repaired and may widen, extend or otherwise improve any such street or cause the soil thereof to be raised, lowered or altered or may place and keep in repair fences and posts for the safety of foot passengers.
(2) With the previous sanction of the Corporation, the Commissioner may permanently close the whole or any part of a public street :
Provided that before according such sanction the Corporation shall by notice published in the manner specified by bye-laws give reasonable opportunity to the residents likely to be affected by such closure to make suggestions or objections with respect to such closure and shall consider all such suggestions or objections, which may be made within one month from the date of the publication of the said notice.