The standards and requirements of this chapter
may be modified by the Planning Board in the case of a plan which
conforms to the Zoning Ordinance and which, in the Board's judgment,
provides adequate public spaces and improvements for the circulation,
recreation, light, air and service needs of the tract when fully developed
and which also provides such covenants or other legal provisions as
will assure conformity to and achievement of the plan.
In granting waivers or modifications the Planning
Board may require such reasonable conditions as will, in its judgment,
secure substantially the objectives of the standards or requirements
so waived or modified.