CarlsbadCitiesDel MarEncinitasEscondidoNewsOceansideRegionSan DiegoSan MarcosSolana BeachVistaOfficials discuss I-5, SR-78 interchange upgradesSteve PuterskiJanuary 25, 2022 January 25, 202201615 OCEANSIDE — For commuting residents, it’s no secret the interchange on state Route 78 and Vista Way to enter southbound Interstate 5 needs an upgrade....