OHPAH research file · refreshed daily

The call
record.

This is the public source document for the open-data artwork. It contains aggregate counts only. Raw transcripts, addresses, row links, and person-level records remain outside the public site.

Alert candidates2873
Mean per 24 hours410.4
Night share19.0%

Open the interactive data artwork →

Window: 2026-09-29T01:27:24-04:00 through 2026-10-06T01:27:24-04:00. Generated: 2026-11-07T17:58:12Z.

Daily field

Sep 29338
Sep 30430
Oct 1474
Oct 2409
Oct 3397
Oct 4357
Oct 5452
Oct 616

Broad call types

Medical2458
Fire228
Mvc187

01

Source corpus

Server-side structured rows from the live OHPAH Research dispatch corpus. The public response contains aggregates only.

02

Candidate rule

A row counts only when it contains both a recognized apparatus identifier and a broad fire, medical, or motor-vehicle type.

03

Privacy boundary

The query never selects transcript, address, row identifier, audio, or person-level fields; only aggregate counts leave the worker.

04

Publish check

The endpoint and website publisher fail closed when the source is unavailable, no candidates are found, required fields are missing, or totals do not reconcile.

Limits