§ 154.020 BLOCKS.
   (A)   Blocks shall be sufficiently wide to accommodate two tiers of lots having the minimum depth required by the zoning district regulations; provided, that this requirement may be waived in blocks adjacent to local collector or collector streets, railroads or watercourses.
   (B)   No block shall be longer than 1,400 feet, nor shorter than 500 feet. Wherever practicable, blocks along collector streets shall be not less than 1,000 feet in length.
   (C)   Crosswalks, not less than ten feet wide, may be required through the center of blocks more than 1,000 feet long where necessary to provide circulation or access to schools, playgrounds, shopping centers, transportation or other community facilities.
(`92 Code, § 34-3-7)