{"source_id":"tnds","service_code":"mk_ARBB_4S_1304S_","public_route_id":"r-05b19a80e0e75a2c","line_name":"4S","origin":"Central Milton Keynes","destination":"Bletchley","operator_name":"Arriva (in Beds and Bucks)","operator_noc":"ARBB","operator_slug":"","service_mode":"bus","description":"Milton Keynes - Bletchley","dataset_version":"sha256:1dc471fb7553d050","fetched_at":"2026-06-03T04:05:34","license_id":"uk-ogl-v3","disruptions":[]}