As used in this chapter, unless the context or subject matter otherwise requires:

1.    “Block of pavement” means the length of any street between two intersecting streets.

2.    “Residential block” means any block in which sixty percent or more of the property abutting the street shall be residential property, such percentage to be computed by dividing the total front feet of residential property on both sides of the street by the total front feet of both sides of the street in said block.

3.    “Residential paving project” means any paving project involving the pavement of any street or streets when seventy-five percent or more of the block of paving therein shall be residential block.

4. “Residential property” means and includes property actually used for residential purposes, all schools, churches, apartments, and the yards appurtenant thereto, vacant or unoccupied lots, and all other lots not actually used for or occupied by business or commercial structures or businesses.