reasonable and proper in the premises; such notice shall set f orth the nature of the proposed improvement, the estimated cost thereof, the total amount of the assessment to be levied therefor, and the amount to be levied upon each parcel of the property or possession of the addressee; any and every such appearance a nd objection shall be made and heard only before the city council, and said council may, at any such hearing, alter, modify, or increase the area of such district, the total assessment thereof, or any individual area or assessment objected to therein, an d shall decide any and every such objection within ten days after the filing thereof and give notice of such decision to the person or persons interested in the manner hereinbefore provided for notice of such assessment within five days thereafter. But no  change shall be made in the existing park system either by closing any existing park or opening any new one or by changing the size of any existing park or relating to improvements thereon or the use thereof by the public or otherwise without the previous  approval in writing of the committee on the development of the Baguio Reservation and control and management of the park system designated by resolution of the Philippine Commission of March thirtieth, nineteen hundred and seven, as amended. And all assess ments levied by virtue of this subsection shall be levied only upon the basis of the value of the land benefited and not upon improvements thereon, and all valuations of any and all lands and premises made under the provisions hereof and for the purposes herein stated shall be the valuations thereof last regularly made for the purposes of annual taxation. ( m ) To provide for the lighting, cleaning, and sprinkling of streets and public places; to prevent and remove encroachments and obstructions upon the same; to regulate or prevent the use of the same for processions, signs, signposts, awnings, and awning po sts; to prohibit the throwing or depositing of offal, garbage, refuse, or other offensive matter in the same, and to provide for its collection and disposition; to regulate the openings therein for the laying of gas, water, sewer, and other pipes therein,  the building and repair of tunnels, sewers, and drains, and all structures therein and thereunder, and the erecting of poles and stringing of wires therein; to provide for and regulate crosswalks, curbs, and gutters therein; to name and change the names of  the same, and provide for and regulate the numbering of houses and lots fronting thereon; to regulate traffic and sales upon the same; to abate nuisances in the same, and punish the authors or owners thereof; to construct, maintain, and regulate the Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011 767