4A - ORDINANCE RELATING TO THE RAPID TRANSIT SYSTEM-DEVELOPMENT ZONE; AMENDING SECTIONS 33C-2 AND 33C-3.3 OF THE CODE OF MIAMI-DADE COUNTY, FLORIDA; EXPANDING THE SMART CORRIDOR SUBZONE OF THE RAPID TRANSIT ZONE TO ENCOMPASS CERTAIN PRIVATE PROPERTY IN THE VICINITY OF SW 27 AVENUE AND SW 28 LANE LOCATED WITHIN A QUARTER MILE OF A PUBLIC TRANSIT STATION; PROVIDING SEVERABILITY, INCLUSION IN THE CODE, AND AN EFFECTIVE DATE