{"access":"sample","sample":true,"sample_size":12,"observations_total":304,"signal":"us-shuttle-premium-whiplash-china-state-buying-record-crop-2026","key":"bnsf-up-shuttle-cars-loaded","family":"FLOW","variable":"BNSF plus UP grain cars loaded and billed in shuttle or dedicated-train service (derived: sum of bnsf-shuttle-cars-loaded and up-shuttle-cars-loaded)","unit":"cars per week","geography":"US","publisher":"stb","source_url":"https://agtransport.usda.gov/resource/27k8-utc2.json?%24where=date%20%3E%3D%20%272021-01-01T00%3A00%3A00%27%20AND%20railroad%20in%20%28%27BNSF%27%2C%27UP%27%29&%24order=date%2Crailroad%2Cstate&%24limit=200000","source_sha256":"5e03354abb4d5713bdedc6a66c91dc98820e5897cb346683d4da8ad13e37b6cd","collected_at":"2026-11-04T17:01:16+01:00","period_grain":"week","derived":{"op":"sum","inputs":["bnsf-shuttle-cars-loaded","up-shuttle-cars-loaded"]},"rights":"PUBLIC_DOMAIN","observations_withheld":false,"observations":[{"period":"2026-W32","value":12904},{"period":"2026-W33","value":11871},{"period":"2026-W34","value":12534},{"period":"2026-W35","value":13262},{"period":"2026-W36","value":12635},{"period":"2026-W37","value":12600},{"period":"2026-W38","value":12437},{"period":"2026-W39","value":13869},{"period":"2026-W40","value":11693},{"period":"2026-W41","value":14161},{"period":"2026-W42","value":13086},{"period":"2026-W43","value":14121}]}