{"schemaVersion":1,"planHash":"a3ffccedeb8d8ce18a30df3636839f775af1e5188e55a1f685695133135c6e35","input":{"coverage":{"endExclusive":"2026-10","start":"2019-01"},"observations":[{"count":null,"month":"2016-10","status":"missing"},{"count":null,"month":"2016-11","status":"missing"},{"count":null,"month":"2016-12","status":"missing"},{"count":null,"month":"2017-01","status":"missing"},{"count":null,"month":"2017-02","status":"missing"},{"count":null,"month":"2017-03","status":"missing"},{"count":null,"month":"2017-04","status":"missing"},{"count":null,"month":"2017-05","status":"missing"},{"count":null,"month":"2017-06","status":"missing"},{"count":null,"month":"2017-07","status":"missing"},{"count":null,"month":"2017-08","status":"missing"},{"count":null,"month":"2017-09","status":"missing"},{"count":null,"month":"2017-10","status":"missing"},{"count":null,"month":"2017-11","status":"missing"},{"count":null,"month":"2017-12","status":"missing"},{"count":null,"month":"2018-01","status":"missing"},{"count":null,"month":"2018-02","status":"missing"},{"count":null,"month":"2018-03","status":"missing"},{"count":null,"month":"2018-04","status":"missing"},{"count":null,"month":"2018-05","status":"missing"},{"count":null,"month":"2018-06","status":"missing"},{"count":null,"month":"2018-07","status":"missing"},{"count":null,"month":"2018-08","status":"missing"},{"count":null,"month":"2018-09","status":"missing"},{"count":null,"month":"2018-10","status":"missing"},{"count":null,"month":"2018-11","status":"missing"},{"count":null,"month":"2018-12","status":"missing"},{"count":0,"month":"2019-01","status":"complete"},{"count":3,"month":"2019-02","status":"complete"},{"count":30,"month":"2019-03","status":"complete"},{"count":44,"month":"2019-04","status":"complete"},{"count":50,"month":"2019-05","status":"complete"},{"count":73,"month":"2019-06","status":"complete"},{"count":108,"month":"2019-07","status":"complete"},{"count":94,"month":"2019-08","status":"complete"},{"count":69,"month":"2019-09","status":"complete"},{"count":97,"month":"2019-10","status":"complete"},{"count":106,"month":"2019-11","status":"complete"},{"count":88,"month":"2019-12","status":"complete"},{"count":70,"month":"2020-01","status":"complete"},{"count":69,"month":"2020-02","status":"complete"},{"count":80,"month":"2020-03","status":"complete"},{"count":83,"month":"2020-04","status":"complete"},{"count":114,"month":"2020-05","status":"complete"},{"count":84,"month":"2020-06","status":"complete"},{"count":83,"month":"2020-07","status":"complete"},{"count":118,"month":"2020-08","status":"complete"},{"count":122,"month":"2020-09","status":"complete"},{"count":79,"month":"2020-10","status":"complete"},{"count":130,"month":"2020-11","status":"complete"},{"count":104,"month":"2020-12","status":"complete"},{"count":90,"month":"2021-01","status":"complete"},{"count":95,"month":"2021-02","status":"complete"},{"count":129,"month":"2021-03","status":"complete"},{"count":83,"month":"2021-04","status":"complete"},{"count":106,"month":"2021-05","status":"complete"},{"count":89,"month":"2021-06","status":"complete"},{"count":145,"month":"2021-07","status":"complete"},{"count":120,"month":"2021-08","status":"complete"},{"count":122,"month":"2021-09","status":"complete"},{"count":79,"month":"2021-10","status":"complete"},{"count":68,"month":"2021-11","status":"complete"},{"count":70,"month":"2021-12","status":"complete"},{"count":99,"month":"2022-01","status":"complete"},{"count":92,"month":"2022-02","status":"complete"},{"count":173,"month":"2022-03","status":"complete"},{"count":143,"month":"2022-04","status":"complete"},{"count":137,"month":"2022-05","status":"complete"},{"count":85,"month":"2022-06","status":"complete"},{"count":91,"month":"2022-07","status":"complete"},{"count":120,"month":"2022-08","status":"complete"},{"count":144,"month":"2022-09","status":"complete"},{"count":142,"month":"2022-10","status":"complete"},{"count":89,"month":"2022-11","status":"complete"},{"count":102,"month":"2022-12","status":"complete"},{"count":116,"month":"2023-01","status":"complete"},{"count":82,"month":"2023-02","status":"complete"},{"count":112,"month":"2023-03","status":"complete"},{"count":82,"month":"2023-04","status":"complete"},{"count":90,"month":"2023-05","status":"complete"},{"count":134,"month":"2023-06","status":"complete"},{"count":97,"month":"2023-07","status":"complete"},{"count":112,"month":"2023-08","status":"complete"},{"count":144,"month":"2023-09","status":"complete"},{"count":106,"month":"2023-10","status":"complete"},{"count":117,"month":"2023-11","status":"complete"},{"count":156,"month":"2023-12","status":"complete"},{"count":142,"month":"2024-01","status":"complete"},{"count":186,"month":"2024-02","status":"complete"},{"count":130,"month":"2024-03","status":"complete"},{"count":114,"month":"2024-04","status":"complete"},{"count":140,"month":"2024-05","status":"complete"},{"count":112,"month":"2024-06","status":"complete"},{"count":107,"month":"2024-07","status":"complete"},{"count":126,"month":"2024-08","status":"complete"},{"count":129,"month":"2024-09","status":"complete"},{"count":126,"month":"2024-10","status":"complete"},{"count":107,"month":"2024-11","status":"complete"},{"count":149,"month":"2024-12","status":"complete"},{"count":108,"month":"2025-01","status":"complete"},{"count":110,"month":"2025-02","status":"complete"},{"count":138,"month":"2025-03","status":"complete"},{"count":83,"month":"2025-04","status":"complete"},{"count":168,"month":"2025-05","status":"complete"},{"count":125,"month":"2025-06","status":"complete"},{"count":132,"month":"2025-07","status":"complete"},{"count":151,"month":"2025-08","status":"complete"},{"count":69,"month":"2025-09","status":"complete"},{"count":103,"month":"2025-10","status":"complete"},{"count":80,"month":"2025-11","status":"complete"},{"count":63,"month":"2025-12","status":"complete"},{"count":53,"month":"2026-01","status":"complete"},{"count":93,"month":"2026-02","status":"complete"},{"count":75,"month":"2026-03","status":"complete"},{"count":81,"month":"2026-04","status":"complete"},{"count":51,"month":"2026-05","status":"complete"},{"count":53,"month":"2026-06","status":"complete"},{"count":50,"month":"2026-07","status":"complete"},{"count":72,"month":"2026-08","status":"complete"},{"count":78,"month":"2026-09","status":"complete"}],"period":"monthly","selectedCount":9363,"selection":{"dataset":"services","filters":{"area":"62","arrest":"all","domestic":"all","hourEnd":24,"hourStart":0,"status":"all","types":[],"ward":"all"},"period":"monthly","scenario":"normal","service":"graffiti","start":"2016-10","view":"chart"},"source":{"cacheStatus":"stale","completeThroughExclusive":"2026-10","coverage":{"endExclusive":"2026-10","start":"2019-01"},"coveragePolicy":"Complete closed calendar periods within the loaded published-record coverage. Counts are not final incidence; corrections remain possible. Unloaded/future periods are missing, not zero.","kind":"socrata","label":"City of Chicago · 311 Service Requests","note":"Source v6vf-nfxy. Joint day/category/hour/applicable-flag/ward/status counts; no addresses, coordinates or incident identifiers. Each year's cells reconcile with an independent source total. Reads are not an atomic publisher snapshot. Current 311 system only, legacy_record=false; includes duplicate requests, not completed work. Status is as currently published, grouped by creation date—not historical status or completion date. Prepared daily community-area snapshot; scheduled rebuild at 06:00 America/Chicago. Full supported history is rechecked for corrections. Retrieval timestamps are preserved; this is not a real-time feed.  Local indexed neighborhood snapshot. Totals are for the loaded area before other filters, not citywide totals. Citywide and unassigned-area views use a separate network-backed scope.","publishedUpdatedAt":"2026-11-06T11:22:56.000Z","retrievedAt":"2026-11-06T12:10:53.153Z","snapshotId":"daily-v1:f761b44d-f9db-4d57-b536-48aea9b60f93:neighborhood-v2:a1f3194e1a558c8e07f0bdcff3c8227e","workingSet":{"area":"62","coverage":{"endExclusive":"2026-10-01","start":"2019-01-01"},"rowCount":5162}},"totalCount":9363,"window":{"endExclusive":"2026-10","start":"2016-10"}},"evidence":{"body":{"completedAt":"2026-11-09T17:38:56.066Z","inputHash":"60214ea9b41f136336927ef92969f11756db939a8ea7548d77148a92b625628f","outcome":{"analysis":{"available":true,"bicGain":0,"boundaries":[],"boundaryRanges":[],"factorRatios":[],"message":"Phase suggestions withheld: serial pattern remains in the candidate fits. Manual boundaries can explore, not confirm, a change.","method":"exploratory-segmented-log10-ols-zero-as-one-v3","mode":"suggested","phases":[{"factorInterval":[1.0113646492344415,1.075967435130181],"fit":{"available":true,"calendarPeriod":"monthly","end":"2026-09","factor":1.043166059464224,"intercept":1.810670043588113,"method":"log10-ols-calendar-zero-as-one-v2","origin":24228,"periodUnits":6,"sampleCount":93,"slope":0.003058908062852792,"start":"2019-01","zeroCount":1},"lagOne":0.5921987912438514,"slopeSE":0.001097266067742903,"sse":7.343154638024065}],"range":{"end":"2026-09","start":"2019-01"},"suggestionBlockedReason":"serial-pattern","warnings":["Exploratory description, not a forecast, causal explanation or proof of a change.","Approximate 95% factor intervals assume independent, constant-variance log residuals and fixed boundaries. They do not account for boundary search, serial dependence or source revisions.","Confirmed zeros are treated as 1 only for fitting and its diagnostics. Raw counts stay zero; low-count results depend on this convention.","Independent phase lines may jump at boundaries. Every observation belongs to exactly one phase.","Reporting, classifications and seasonality can change. Counts are not population-adjusted; a level shift without a slope change is not the target of this search.","Uses dated last-good cached data, not newly verified source counts.","1 confirmed zero fitted as 1; raw counts remain zero. Low-count trends are sensitive to this adjustment.","The best candidate failed the residual-independence diagnostic. A single-trend reference is shown instead; this does not establish a stable trend.","Serial pattern in residuals: independence is doubtful; the reported intervals may be too narrow. Seasonality is not modeled."]},"annualFrequency":{"available":true,"end":"2026-09","flag":true,"foldMagnitude":1.7206572769953052,"monthlyDelta":-51.166666666666664,"priorMonthlyMean":122.16666666666667,"priorStart":"2024-10","priorTotal":1466,"ratio":0.5811732605729877,"reason":"Raw counts: latest 12 covered months versus preceding 12; descriptive, not a detected breakpoint","recentMonthlyMean":71,"recentStart":"2025-10","recentTotal":852,"score":0.8914127090870251,"windowMonths":12,"zeroBaseline":false},"flags":["frequency"],"frequency":{"available":true,"end":"2026-09","flag":true,"foldMagnitude":1.7206572769953052,"monthlyDelta":-51.166666666666664,"priorMonthlyMean":122.16666666666667,"priorStart":"2024-10","priorTotal":1466,"ratio":0.5811732605729877,"reason":"Raw counts: latest 12 covered months versus preceding 12; descriptive, not a detected breakpoint","recentMonthlyMean":71,"recentStart":"2025-10","recentTotal":852,"score":0.8914127090870251,"windowMonths":12,"zeroBaseline":false},"frequencyAssessment":"annual-policy","method":"multi-feed-turn-and-frequency-renewal-v2","observationHash":"2c6a04401aa9cc96cc3327cb8421748d5550ab9a338f8f780a6381953744039b","phases":[{"factorInterval":[1.0113646492344415,1.075967435130181],"fit":{"available":true,"calendarPeriod":"monthly","end":"2026-09","factor":1.043166059464224,"intercept":1.810670043588113,"method":"log10-ols-calendar-zero-as-one-v2","origin":24228,"periodUnits":6,"sampleCount":93,"slope":0.003058908062852792,"start":"2019-01","zeroCount":1},"lagOne":0.5921987912438514,"slopeSE":0.001097266067742903,"sse":7.343154638024065}],"ranking":{"frequency":0.8914127090870251,"turn":0},"reason":"Review frequency; heuristic thresholds, not confirmed discoveries","reviewContext":false,"status":"candidate","thresholds":{"minFrequencyRatio":1.5,"minMonthlyDelta":5,"minPhaseTotal":120,"minTurn":1.5},"turns":[],"warnings":["Exploratory description, not a forecast, causal explanation or proof of a change.","Approximate 95% factor intervals assume independent, constant-variance log residuals and fixed boundaries. They do not account for boundary search, serial dependence or source revisions.","Confirmed zeros are treated as 1 only for fitting and its diagnostics. Raw counts stay zero; low-count results depend on this convention.","Independent phase lines may jump at boundaries. Every observation belongs to exactly one phase.","Reporting, classifications and seasonality can change. Counts are not population-adjusted; a level shift without a slope change is not the target of this search.","Uses dated last-good cached data, not newly verified source counts.","1 confirmed zero fitted as 1; raw counts remain zero. Low-count trends are sensitive to this adjustment.","The best candidate failed the residual-independence diagnostic. A single-trend reference is shown instead; this does not establish a stable trend.","Serial pattern in residuals: independence is doubtful; the reported intervals may be too narrow. Seasonality is not modeled.","311 status is its value at retrieval, not at request creation. Newer cohorts have had less time to close; Open/Canceled comparisons can reflect workflow or cohort age rather than changing request volume.","Current-system 311 coverage starts in 2019. Early phases may reflect adoption/reporting ramp-up; request counts are not completed work or incident prevalence.","Many dependent filter conditions were searched. No multiple-testing-adjusted significance or causal attribution is claimed.","Frequency compares fixed equal-length windows of raw counts, not population risk or a celeration-factor ratio. Reporting, classifications and exposure may have changed."]},"runId":"a5745b7f816b714691434016078a81d5d68c2b34db9231d21c2d093311044122","schemaVersion":1,"seriesId":"01f1ea52627395479a324d9658478525fc7494babe836ec8ea4717c7682658d8"},"sha256":"3ec5a43dc672a9cd7f7405272796a9c548504a547f84c55e8c46f35bb55e3253"}}