"Plan to revise the lines and grades of that portion of City PLan no. 149, bounded by Gravers Lane, Germantown Avenue, Abington Avenue, Crefeld Street, Willow Grove Avenue and Seminole Avenue, including the relocation, widening, reduction in width, placing on the city plan, striking from the city plan and vacating the legally open portions of streets, lanes, drives, and avenues, and the revision of the lines and grades of intersecting streets affected thereby."