Accident reconstruction timeline

For documentation purposes. This tool helps you organize your recollection of events. The output is for your own records and your attorney. It does not constitute a legal statement. See our full disclaimer.

Build your accident timeline

Answer each section as completely as you can. Write down everything you remember - even details that seem minor. Your attorney will identify what's significant.

Section 1 - Basic accident facts

Date of accident

Time of accident (approximate)

Exact location

Weather conditions

Lighting conditions

Type of accident

Section 2 - What happened before the accident

Where were you coming from and where were you going?

Your approximate speed

Your condition before the crash

What was the other driver/party doing before the crash?

Traffic signals, signs, or markings relevant to the crash

Section 3 - The crash itself

When did you first realize a crash was about to happen?

Did you take any action to avoid the crash?

Where did the impact occur on your vehicle / your body?

Describe the force or severity of the impact

Section 4 - Immediately after the crash

Immediate pain or symptoms you felt

What did the other driver say or do after the crash?

Witnesses - names or descriptions

Police response - officer name, badge, report number if known

Medical response - ambulance, ER, or self-transport

Section 5 - Evidence and documentation

Photos taken at the scene (describe)

Known surveillance cameras near the scene

Dashcam or other video

Anything else that may be relevant

Your accident reconstruction timeline

Save this timeline and share it with your attorney at your first meeting. The more detail you provide now, while events are fresh, the stronger your case will be.

Send this timeline to a personal injury attorney today

Critical evidence disappears within days - surveillance footage is overwritten, witnesses move on, and skid marks fade. An attorney can act on your timeline immediately to preserve evidence. Free consultation.

Why does an accident timeline matter so much to your case?

Insurance adjusters and defense attorneys are very good at one thing: creating doubt. A timeline that documents exactly what you saw, heard, and experienced - written within days of the accident - is nearly impossible to successfully challenge. A timeline reconstructed months later from faded memory is vulnerable to every attack.

The 3 most time-sensitive pieces of evidence in any vehicle accident case are: surveillance footage (overwritten in 24 to 72 hours at most locations), electronic data recorder (EDR) data from the vehicles (accessible until the car is repaired or totaled), and witness contact information (people move on fast). Your timeline identifies where this evidence exists so your attorney can act immediately.

What details do accident reconstructionists look for?

Professional accident reconstructionists - engineers hired to testify about how a crash happened - rely on 4 categories of physical evidence: vehicle damage patterns (which part of which vehicle struck where), skid marks and yaw marks (showing pre-impact speed and steering), electronic data from the EDR (speed, braking, steering inputs in the 5 seconds before impact), and scene measurements (distances, sight lines, signal timing). Your narrative timeline tells them where to look and what to explain.

How soon should you document the accident?

Within 24 hours is ideal. Within 72 hours is essential for surveillance footage. Within 1 week for everything else. The longer you wait, the more details you'll forget, the more evidence disappears, and the more the other side's narrative becomes the default record. Courts and juries know that contemporary documentation is more reliable than reconstructed memory - which is exactly why insurers prefer you wait.

Frequently asked questions about accident documentation

If you share it with your attorney, it's protected by attorney-client privilege and cannot be compelled in discovery. If you share it publicly - posting to social media, sending to the insurance company, or giving it to anyone other than your attorney - it can potentially be used in litigation. Share your timeline with your attorney only. Never post accident details, injury photos, or descriptions of your condition on social media. Defense attorneys routinely monitor claimants' social media throughout litigation.

Write down what you do remember and clearly note where your memory is uncertain. "I believe the light was green but I'm not 100% certain" is better than guessing or leaving it out. Courts and juries respect honest uncertainty more than overconfident assertions that later prove wrong. Your attorney will fill gaps through the police report, witness statements, traffic camera footage, and expert reconstruction. Your personal timeline documents your perspective - it doesn't need to be perfect.

In most jurisdictions, accident reports become public records 24 to 72 hours after filing. Contact the responding police agency (local police, county sheriff, or state patrol depending on where the accident occurred) and request a copy with the report number. Many agencies now provide reports online through services like LexisNexis or Crashdocs. Your attorney can also obtain it. The report contains the officer's description of the scene, vehicle damage, weather conditions, statements from both parties, and often a preliminary fault determination.

Conflicting accounts are extremely common and expected. It doesn't mean your case is weak. Physical evidence - vehicle damage, skid marks, EDR data, and surveillance footage - often resolves conflicting narratives conclusively. Witnesses who saw the crash from a neutral position are particularly powerful. The at-fault driver's incentive to lie or misremember is obvious to juries. Your contemporaneous timeline, written before you knew what the other driver claimed, is strong evidence of your honest recollection.

For serious accidents with significant damages, yes - and your attorney typically retains one on your behalf. Professional accident reconstruction engineers typically charge $150 to $400 per hour, with total case costs running $5,000 to $20,000. In catastrophic injury or wrongful death cases, reconstruction is nearly always required. Your attorney fronts this cost on contingency and recovers it from the settlement. For minor accidents, informal documentation of the scene with photographs may be sufficient.