{"note":"direction_id means something different on each route. `directions` names each by where it runs. AT renumbered the routes when the City Rail Link opened, so a line can have two route_ids.","routes":[{"route_id":"WEST-201","name":"Western Line","short_name":"WEST","colour":"#97C93D","era":"pre-crl","first_date":"2026-06-17","last_date":"2026-09-12","directions":{"0":"Swanson → Waitematā","1":"Waitematā → Swanson"}},{"route_id":"ONE-201","name":"Onehunga Line","short_name":"ONE","colour":"#00AEEF","era":"pre-crl","first_date":"2026-06-17","last_date":"2026-09-12","directions":{"0":"Onehunga → Newmarket","1":"Newmarket → Onehunga"}},{"route_id":"STH-201","name":"Southern Line","short_name":"STH","colour":"#D52923","era":"pre-crl","first_date":"2026-06-17","last_date":"2026-09-12","directions":{"0":"Pukekohe → Waitematā","1":"Waitematā → Pukekohe"}},{"route_id":"EAST-201","name":"Eastern Line","short_name":"EAST","colour":"#FDB913","era":"pre-crl","first_date":"2026-06-17","last_date":"2026-09-12","directions":{"0":"Manukau → Waitematā","1":"Waitematā → Manukau"}},{"route_id":"E-W-201","name":"East-West Line","short_name":"E-W","colour":"#97C93D","era":"interim","first_date":"2026-09-13","last_date":"2026-10-27","directions":{"0":"Manukau → Swanson via the City Centre","1":"Swanson → Manukau via the City Centre"}},{"route_id":"O-W-201","name":"Onehunga-West Line","short_name":"O-W","colour":"#00AEEF","era":"interim","first_date":"2026-09-13","last_date":"2026-10-27","directions":{"0":"Onehunga → Henderson via Newmarket","1":"Henderson → Onehunga via Newmarket"}},{"route_id":"S-C-201","name":"South City Line","short_name":"S-C","colour":"#D52923","era":"interim","first_date":"2026-09-13","last_date":"2026-10-27","directions":{"0":"Pukekohe → Newmarket via the City Centre","1":"Newmarket → Pukekohe via the City Centre"}}]}