横浜市交通局による地下鉄は、ブルーラインとグリーンラインの2路線あります。
[{"@id":"urn:uuid:7cc75316-ec43-4d7a-9f09-58ec54a95944","@type":"odpt:TrainInformation","dc:date":"2025-03-14T21:19:01+09:00","@context":"http://vocab.odpt.org/context_odpt_TrainInformation.jsonld","dct:valid":"2025-03-14T21:24:01+09:00","owl:sameAs":"odpt.TrainInformation:YokohamaMunicipal.Blue","odpt:railway":"odpt.Railway:YokohamaMunicipal.Blue","odpt:operator":"odpt.Operator:YokohamaMunicipal","odpt:trainInformationText":{"en":"Normal service","ja":"平常運行"}},{"@id":"urn:uuid:9992697f-fd03-4fc0-bf8b-cbd048958fe8","@type":"odpt:TrainInformation","dc:date":"2025-03-14T21:19:01+09:00","@context":"http://vocab.odpt.org/context_odpt_TrainInformation.jsonld","dct:valid":"2025-03-14T21:24:01+09:00","owl:sameAs":"odpt.TrainInformation:YokohamaMunicipal.Green","odpt:railway":"odpt.Railway:YokohamaMunicipal.Green","odpt:operator":"odpt.Operator:YokohamaMunicipal","odpt:trainInformationText":{"en":"Normal service","ja":"平常運行"}}]