Validated
County road-user collision trends
A reproducible two-point comparison of California OTS county-level fatal-and-injury victim counts for all road users, motorcyclists, pedestrians, and bicyclists.
116 records2021/2023
Open dataset California public-data research
Official records, reproducible calculations, and limits you can inspect.
These datasets preserve the official source behind every row, identify every Hurt Advice calculation, and provide the same records as accessible HTML, CSV, and JSON. No modeled, interpolated, or placeholder values are published.
4 validated datasets356 public recordsCSV + JSON
Sources and calculations reviewed August 9, 2026.
Current cohort
Four focused California evidence collections
Validated
Senior pedestrian safety
An All Seniors-sponsored, source-transparent comparison of OTS pedestrian victims age 65 and older across every California county in 2021 and 2023.
116 records2021/2023
Open dataset Validated
Auto insurance complaint trends
A source-preserving transcription of the California Department of Insurance 2025 study for 50 large automobile insurers, covering justified complaint ratios and counts for 2022-2024.
50 records2022/2024
Open dataset Validated
California local evidence source index
A 60-city directory linking Hurt Advice location hubs to reviewed California government records with source scope, limits, request fields, and official URLs.
74 recordsCurrent source registry; record periods vary by source
Open dataset A practical research method
How to use this library without overstating the data
These records can help answer a focused public-data question, compare reported patterns, and locate an official source. They cannot decide fault, diagnose an injury, value a claim, or replace the incident-specific evidence held by drivers, witnesses, insurers, medical providers, employers, and government agencies.
- 1
Start with a precise question
Choose the collection that matches the fact you need: county collision patterns, senior pedestrian safety, auto-insurance complaints, or the official records available for a California location.
- 2
Read the source and coverage notes
Each collection identifies the agency, reporting period, geographic scope, publication edition, and any Hurt Advice calculation applied to the source records.
- 3
Inspect the rows before reusing them
Use the accessible table to confirm the exact record, then download the matching CSV or JSON file if you need to sort, compare, analyze, or cite multiple rows.
- 4
Cite the edition and its limits
Link to the dataset page and the underlying official source. State the period measured and avoid using a statewide or county trend as proof of what happened in one incident.
Interpretation guardrails
What the records can and cannot establish
Appropriate uses
- Compare values that use the same agency definition and reporting period.
- Identify the official publication behind a statistic or geographic record.
- Reproduce a disclosed total, ratio, rank comparison, or trend calculation.
- Find which local agency record may be worth requesting for a specific event.
Conclusions to avoid
- Using an aggregate trend as proof that one person or organization was at fault.
- Comparing ranks or rates produced under different definitions without qualification.
- Treating a complaint count as a finding that an insurer violated the law.
- Assuming a public-record index confirms that a requested record exists or is releasable.
Continue with the right source
Research pathways for different questions
Public data catalog
Browse every downloadable dataset and machine-readable distribution in one registry.
Verified fact library
Find source-backed California injury-law facts with definitions and review dates.
Entity and source map
See how agencies, statutes, services, locations, and public resources connect.
Accident statistics guide
Understand how public crash statistics are collected and how to read them carefully.
California crash probability guide
Review a transparent estimate built from published population and collision records.
Evidence checklist
Move from aggregate public data to the records that may document an individual event.
Citation and reuse center
Get attribution guidance and stable links for writers, researchers, and publishers.
Source policy
Read how sources are selected, reviewed, dated, corrected, and presented.
Validation before publication
Checks flag missing records, incomplete tables, changed source values, and calculations that no longer match the official data before an update is released.
Reusable records
Human-readable tables and stable machine-readable downloads expose the same validated record set.
Responsible citation
Every page explains what the source measures, what Hurt Advice calculated, and what the records cannot establish.
If you are researching a particular accident, pair public data with the incident report, scene photographs, witness information, medical records, insurance correspondence, and other event-specific documents. The accident evidence checklist explains what to preserve and why.
Hurt Advice is a lawyer-referral and legal-information service, not a law firm. These datasets provide general educational information and do not determine fault, insurance coverage, legal deadlines, claim value, representation, or case outcomes.