Where a proposed subdivision contains more than thirty (30) lots, the Planning Board may, at its discretion, limit the number of lots to a maximum of thirty (30) lots in any stage. The Board may require that no subsequent stages be submitted for subdivision approval until construction of all required improvements of each prior stage has been completed. Provided, however, the Board may allow more than thirty (30) lots per stage where development of more than thirty (30) lots would be consistent with the intent and purposes of these Rules and Regulations.