Membership. The Planning Advisory Board shall consist of seven members, including the Department of the Department of Planning and Development, or the Commissioner's designee. The Town Board shall, by resolution, appoint the members thereof and shall designate a Chairman. Preferred members shall be those who are members of or who demonstrate an understanding of the practice of one or more design professions, e.g., municipal planning, engineering, architecture and landscape architecture. No person who is a member of the Town Board shall be eligible to serve simultaneously on the Planning Advisory Board.