Coverage map · what's on disk and what isn't

Crash mechanics.

The physics and rescue chain that turn a crash into harm.

The CHAIN group: energetics (speed, mass, impact direction), vulnerability (restraint coupling, ejection, frailty) and survival (EMS response, trauma access). Much sits unused in raw FARS; delta-v and injury-by-body-region are sample-only (CISS).

33% backed by real data — 0 covered 2 partial 1 blindspot

Crash Data Explorer →

Coverage map

Energetics (speed/mass/PDOF)

partial

source vehicles impact_point/rollover; vehicle_partner mass pairing

Blindspot: True delta-v / closing speed are CISS-sample only.

Vulnerability (restraint/ejection/age)

partial

source persons restraint/airbag/ejection/age; kabco_rank (backfilled)

Survival (EMS / trauma access)

blindspot

source raw FARS NOT_/ARR_/HOSP_ + LAG_HRS not curated

Blindspot: EMS clock + survival time present in raw, not surfaced; trauma drive-time needs isochrone.

Known blindspots — future work

What we do not yet have. These are explicit so the gaps stay visible and become the agenda for future DB and knowledge-integration work.

Delta-v / AIS injury are sample-only (CISS); EMS timing and survival are present-but-latent in raw FARS; trauma access needs an external isochrone build.