Two years ago, New Jersey Transit commuters gained an ally when a public member joined a board that has made all decisions unanimously since 2003. Raymond W. Greaves was the lone opposing voice July 15 when the eight-member panel composed of Governor Chris Christie’s cabinet members and gubernatorial appointees raised fares amid a $120 million budget gap. New Jersey Transit, the nation’s third-largest transportation agency, has come under increasing scrutiny after malfunctioning signals and power lines la