The minimum length of blocks shall be 600 feet while the maximum length shall be 1,500 feet. In blocks longer than 900 feet easements shall be provided for pedestrian walks to render more direct access to community facilities and shopping areas. Such easements shall be located in or near the center of the block or as extensions of sidewalks or walks in adjacent blocks. Crosswalk easements when provided shall be at least ten feet wide and shall be dedicated as public rights of way for sidewalk purposes. However, these standards may be varied to provide for:
(a) Vehicular and pedestrian circulation within the subdivision and access to areas outside the subdivision;
(b) Limitations and opportunities of topography;
(c) Zoning requirements and the requirements contained in this UDO as to lot size and dimension.
(d) The character of existing and potential future development of areas surrounding the proposed subdivision; and
(e) Irregular shaped blocks, including super blocks, and indented cul-de-sacs containing interior public spaces, will be acceptable when adequately designed and fitted to the overall plan and when adequate.