Pavement Structure Design. The pavement structure design for each particular site utilizing either a flexible or rigid pavement type shall be the responsibility of the developers (or his engineer). The pavement design shall be based upon traffic loading projections and field sampling and laboratory analysis of the subgrade soils to be encountered in roadway areas in the site and shall follow current design recommendations of the Asphalt Institute, Portland Cement Concrete Association or such other generally recognized standards as may be acceptable to the Planning Board. As a minimum requirement rigid Portland cement paving shall be expansion joint type paving utilizing joints similar to Type A expansion joints, according to the Standard Construction Detail of the New Jersey Department of Transportation; shall be reinforced, constructed with Class B air entrained concrete and shall have a minimum thickness of six (6") inches. Flexible bituminous concrete pavements shall consist of at least four (4") inches of hot mix bituminous stabilized base course and a minimum wearing surface of not less than one and one-half (1 1/2") inches of pavement, Type FABC-1, (minimum total pavement thickness: five and one-half (5 1/2") inches) or other appropriate pavement composition determined as previously enumerated in this section, all in accordance with the applicable requirements of the Standard Specification.