The Commuter Rail Board shall establish a citizens advisory board composed of ten residents of those portions of the metropolitan region in which the Commuter Rail Board provides service who have an interest in public transportation. The members of the advisory board shall be named for two year terms, shall select one of their members to serve as chairman and shall serve without compensation. The citizens advisory board shall meet with the Commuter Rail Board at least quarterly and advise the Commuter Rail Board of the impact of its policies and programs on the communities it serves. Appointments to the citizens advisory board should, to the greatest extent possible, reflect the ethnic, cultural, and geographic diversity of all persons residing within the Commuter Rail Division’s jurisdiction.