Csa crash indicator calculation

Skill x3fleetsafety/skills/skills/csa-crash-indicator-calculation

Open-source Agent Skills for DOT / FMCSA compliance. Drop in any AI coding agent (Claude Code, Cursor, Cowork) so it knows trucking regulations like a fleet safety pro.

Install

npx -y skills add x3fleetsafety/skills --skill csa-crash-indicator-calculation

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

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Use this skill to understand how FMCSA calculates the Crash Indicator BASIC. Covers what crashes count, severity weighting, time weighting, and the preventability program.

SKILL.md

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Crash Indicator Calculation Detail

The Crash Indicator BASIC is one of 7 BASICs in SMS. It's calculated differently than violation-based BASICs.

What crashes count

DOT-recordable crashes per § 390.5:

Fatality (any party)
Bodily injury requiring immediate medical treatment away from scene
Disabling damage requiring tow-away

Severity weighting

Fatal crash — 3 points
Injury crash — 2 points
Tow-away crash — 1 point

Time weighting

Crashes in past 0-6 months: 3× weight
Crashes in past 6-12 months: 2× weight
Crashes in past 12-24 months: 1× weight

Calculation formula (simplified)

Crash Score = Sum of (Severity × Time Weight) for all crashes in past 24 months
Crash Indicator Percentile = Carrier's Crash Score relative to peer group

Crash Preventability Determination Program

Started 2020, allows carriers to challenge crashes for preventability. If FMCSA determines crash was non-preventable:

Crash still counts in your record
But preventability flag is published
May influence external observers (insurance, customers)

What qualifies for preventability review

Hit while parked
Driver hit by drunk driver
Driver hit by impaired/under-the-influence driver
Driver hit by suicide
Driver hit by red-light or stop-sign-running other party
Driver hit while stationary in traffic
Driver hit by animal
Driver hit by infrastructure failure (tree falls, bridge collapse)

How to file

Apply via FMCSA Crash Preventability Determination Program (online)
Provide documentation (police report, dashcam footage, witness statements)
FMCSA reviews and issues determination

Compass support

Compass CSA module:

Imports crash data from carrier reports
Flags crashes eligible for preventability review
Tracks the determination outcome
Adjusts your dashboard to reflect non-preventable status (still in BASIC, but flagged)

CFR citations

49 CFR § 385.4
FMCSA SMS Methodology — Crash Indicator
FMCSA Crash Preventability Determination Program

How Compass surfaces this

Searchable in Compass Ask. Runs against the carrier's actual fleet data when invoked from the relevant tracker. Read-only; no actions without explicit user approval.

Built by X3 Compass

The AI-powered DOT compliance platform for fleets 1–100 power units. Try a 7-day free trial — no credit card required — at https://x3compass.com/?utm_source=skill&utm_medium=github&utm_campaign=csa-crash-indicator-calculation

X3 Compass turns these skills into a complete operational platform: driver qualification files, drug & alcohol consortium, MVR pulls, hours-of-service tracking, hazmat shipping, IFTA filing, FMCSA audit prep, and DataQ dispute drafting — all CFR-cited, all in one place.

This skill is published under the X3 Compass open skills initiative. Contributions welcome at https://github.com/x3fleetsafety/skills