Traumatic brain injury (TBI) is one of the most consequential — and most contested — injuries in train-accident litigation. The damage is often invisible on imaging, yet it can permanently change cognition, personality, and earning ability. This educational overview explains how TBI is classified, why “mild” is a misleading word, and what drives claim value. It is not medical or legal advice.
What a TBI is
A TBI is a disruption of normal brain function caused by a bump, blow, or jolt to the head — common in derailments, grade-crossing collisions, falls from equipment, and being struck by objects. According to the U.S. Centers for Disease Control and Prevention (CDC), TBIs contribute to a large share of injury deaths and long-term disability each year in the United States. A brain injury does not require a skull fracture or even a loss of consciousness.
Mild, moderate, and severe
Clinicians often grade TBI using the Glasgow Coma Scale (GCS) and the presence and duration of loss of consciousness and amnesia:
- Mild TBI (concussion) — GCS 13–15. “Mild” describes the initial presentation, not the consequences: persistent post-concussion symptoms, memory problems, headaches, and mood changes can last months or years.
- Moderate TBI — GCS 9–12, with longer unconsciousness and a higher risk of lasting deficits.
- Severe TBI — GCS 3–8, often with profound, permanent impairment requiring lifelong care.
The real-world impact
The financial and human stakes come from how TBI affects daily life: difficulty with memory, concentration, and executive function; headaches and fatigue; sleep and mood disorders; and personality changes that strain relationships and employment. Many people with moderate-to-severe TBI cannot return to their prior work, which makes lost earning capacity a major component of the claim. Severe TBI can require lifelong attendant care comparable in cost to a spinal cord injury — see spinal cord injury settlements, which frequently co-occur.
Proving an invisible injury
Because mild and moderate TBI may not appear on a standard CT scan, proof relies on a combination of evidence: emergency and treatment records, neuropsychological testing, advanced imaging where indicated, before-and-after testimony from family and coworkers, and expert opinion from neurologists, neuropsychologists, and life-care planners. Defendants often argue symptoms are exaggerated or unrelated, so contemporaneous documentation and consistent treatment are essential.
What TBI claims are worth
TBI claim value spans an enormous range — from a modest recovery for a fully resolved concussion to multimillion-dollar awards for severe, permanent injury. The drivers are the same as any serious claim: medical costs, lost earning capacity, the strength of liability, and non-economic damages for the cognitive and emotional toll. Railroad employees pursue these through FELA (model it with the FELA settlement calculator); passengers and bystanders use negligence claims and the settlement calculator. Confirm your deadline with the filing-deadline calculator.
Frequently asked questions
Is a “mild” TBI or concussion still worth a claim?
Yes. “Mild” describes the initial Glasgow Coma Scale score, not the outcome. Persistent post-concussion symptoms — memory problems, headaches, mood changes — can last for years and affect work, supporting a meaningful claim when caused by someone else’s negligence.
How do you prove a brain injury that doesn’t show on a scan?
Through neuropsychological testing, emergency and treatment records, advanced imaging where appropriate, expert testimony from neurologists and neuropsychologists, and before-and-after accounts from family and coworkers. Consistent, contemporaneous documentation is critical.
What is a TBI train-accident claim worth?
There is no fixed figure. Value ranges from modest for a resolved concussion to multimillion-dollar for severe permanent injury, driven by medical costs, lost earning capacity, liability strength, and non-economic damages. Each case is valued on its own facts.
