In ordering street and sidewalk improvements without a petition and assessing the costs thereof under authority of this Article, the Council shall comply with the procedures required by Article 10 of G.S. Chapter 160A, except those provisions relating to petitions of property owners and sufficiency thereof. The effect of the act of levying assessments under authority of this Article shall be the same as if assessments were levied under authority of Article 10 of G.S. Chapter 160A.