R4 Ospedale Cardarelli -- Piazza Municipio ( expected to be renumbered 204 ) ; this project had been tentatively approved by 2010 .
Construction began in late 2011 .
R4 Ospedale Cardarelli -- Piazza Municipio ( expected to be renumbered 204 ) ; this project had been tentatively approved by 2010 , and construction began in late 2011 .