INSIGHTS / REPRODUCIBLE ANALYSIS

Findings with their assumptions attached.

Source counts checked against NYC Open Data on October 10, 2026. The filters and calculations are preserved here.

CATEGORY DISCONTINUITY

Residential noise reports fell sharply after mid-January.

There were 44,150 Noise - Residential requests from Jan 4–17, versus 14,158 from Jan 18–31, an equal-length change of -67.9%. HEAT/HOT WATER changed -5.2% over the same periods. Daily noise counts fell from several thousand to roughly 700 around Jan 14.

Interpretation limitThe step change is category-specific. It could reflect reporting, intake, classification, or real behavior. CityOps cannot establish a cause from these records alone.

Next analytical stepCheck source documentation and compare descriptor, channel, and agency patterns before recommending operational changes.

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AREA COMPOSITION

Heat reports stayed concentrated in the Bronx, with little shift in share.

For Jan 18–31, the Bronx accounted for 11,422 of 30,624 selected HEAT/HOT WATER reports (37.3%). Its preceding two-week share was 38%. The share moved less than one percentage point while the category total fell -5.2%.

Interpretation limitRaw reports are influenced by population, housing stock, reporting access, and repeat reports. This is not a per-resident rate or proof of service quality.

Next analytical stepCompare with a documented population or housing denominator and inspect closure cohorts before making a resource recommendation.

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REPRODUCIBILITY

How these counts were checked

Source dataset erm2-nwe9 · NYC-local created dates · inclusive start, exclusive end

Each case uses the API fields created_date, complaint_type, and where relevant borough. The repository stores the exact SoQL checks and calculation in docs/findings/january-2025.md. A later source correction can change live dashboard counts; these published figures remain tied to the stated source check date.