Services
Document a loss
Support a claim
For carriers and employers
Service areas
Middle Tennessee
- Nashville
- Clarksville
- Murfreesboro
- Franklin
- Hendersonville
- Smyrna
- Spring Hill
- Gallatin
- Lebanon
- Columbia
- Brentwood
- Mount Juliet
- La Vergne
- Cookeville
East Tennessee
West Tennessee
Roadway Evidence Documentation After a Collision
Mapping of the physical evidence a collision leaves on and beside the road: debris fields, gouges, scrapes, fluid trails and damage to fixed objects. For adjusters, attorneys and analysts who need to locate the area of impact and trace what followed.
- Coverage
- 95 of 95 counties
- Dispatch
- 24 / 7 / 365
- Metro response
- Under 60 min avg.
- Statewide
- 4-hour guarantee
What this service covers
A collision scatters evidence across the road surface in a pattern. Glass and plastic fragments, dislodged underbody dirt, fluid spatter, metal scrapes and gouges all land or form in places determined by where the vehicles met and which way they went. Read together and plotted to scale, they indicate an area of impact with more reliability than any single item. Read separately, or after a sweeper has passed, they say much less.
The work is closer to mapping than to photography. Each concentration of debris is outlined and measured, each gouge and scrape is located and its direction recorded, and each fluid trail is followed from its first drop to the pool at its end. Struck guardrail, signposts, curbs and trees are documented as part of the same record, since contact with a fixed object marks a known point on a vehicle's path.
When evidence on the road surface matters
- The lane in which two vehicles met is disputed and no camera recorded the collision itself.
- A sideswipe or center-line crossing is alleged, and gouge positions relative to the lane lines could support or contradict it.
- Debris has been swept to the shoulder and someone needs to record what remains and where it now lies.
- A vehicle struck a guardrail or pole after the first impact and the sequence of contacts is unclear.
- A carrier handling a subrogation file needs the impact location documented before the other party's account changes.
Evidence mapped on and beside the roadway
- Debris field boundaries
- The outer limits of glass, plastic and trim fragments are measured and photographed, with denser concentrations outlined and located separately from scattered pieces.
- Gouges and chops
- Each cut into the pavement is measured for position, length, depth and direction, and photographed with a scale so its shape can be compared with vehicle underbody components.
- Scrapes and scratches
- Shallow metal-to-pavement marks are traced from start to end, as they show the direction a damaged vehicle slid or was dragged.
- Underbody dirt and spatter
- Dislodged dirt, rust flakes and radial fluid spatter, which tend to fall close to the point of collision, are photographed promptly because rain and tires remove them first.
- Fixed-object contact
- Guardrail deformation, pole and sign strikes, curb scuffs and tree damage are measured for height, location and paint or material transfer.
- Identifiable components
- Part numbers, lens fragments, paint chips and badges found on the road are photographed in place, which can link debris to a particular vehicle.
From request to delivered record
- RequestCall dispatch or submit the request form with the location, loss type and urgency.
- DeployDispatch assigns the nearest available licensed field investigator through the statewide network.
- DocumentPhotographs, video, measurements and factual notes are captured once the scene is safe to work.
- PreserveFiles are timestamped, organized and kept in their original form with a record of who captured them.
- ReportThe package is delivered securely to the requesting party, typically the same day.
Indicators of the area of impact
No single piece of evidence marks the exact spot where vehicles met, which is why analysts speak of an area of impact. The strongest indicators are those that form at the moment of maximum engagement and stay put: gouges cut by structure forced into the pavement, abrupt changes of direction in a tire mark, and deposits of underbody dirt. Debris such as glass is thrown forward and outward, so its field indicates direction of travel more than a precise location.
For that reason the documentation records each class of evidence separately and plots all of them. An analyst can then see whether the gouges, the start of the fluid trails and the apex of the debris pattern agree with one another and with each driver's account. Tennessee uses modified comparative fault, so a difference of a few feet across a center line can matter to how a claim is allocated. The field record reports locations. It does not allocate fault.
How quickly roadway evidence is lost
Debris is the first to go. Responders sweep lanes to reopen them, tow operators collect larger parts, and traffic carries small fragments along the road and into the gutter. Underbody dirt and fluid spatter rarely survive the first rain. Fluid stains fade over days to weeks depending on the fluid and the surface. Gouges and deep scrapes last longest, often until the road is resurfaced, and damaged guardrail may be replaced by the road authority on its own schedule.
A late visit is still worthwhile, but the notes need to be candid about it. Investigators record swept debris at the roadside as swept debris, without assigning it an original position. They photograph repairs to guardrail or signs that postdate the crash and note the difference. The result is delivered with timestamped photographs, video and a measurement table, in a form the retaining party's reconstruction expert can use, typically the same day as the visit.
Delator personnel have accident reconstruction experience. The work product is physical evidence and technical findings; it does not determine legal fault, which remains with the parties, the court or a jury.
Delator Claims Division is not an engineering firm. Whether any analysis is accepted in a proceeding is decided by the court.
Common questions about this service
The road was swept before anyone took photographs. Is there anything left to document?
Usually. Gouges, scrapes, fluid stains and fixed-object damage remain after sweeping, and swept debris often sits on the shoulder nearby. These are measured and photographed as found. The notes make clear which items are in their original position and which have been moved, so the analyst does not rely on displaced material.
Can debris be collected and kept as evidence?
The standard assignment documents debris in place and does not remove it. If you want specific items collected, raise it when requesting the work so handling and custody can be agreed in advance. Whether and how an item should be retained for a claim or case is a question for you or your counsel.
Can you tell old gouges from ones made in this crash?
Fresh gouges typically show clean, bright aggregate and sharp edges, while older ones are weathered and filled with dirt. The investigator records those characteristics and photographs them closely. Where the age of a mark cannot be judged from its appearance, the notes say so and the mark is still recorded.
Is this available to an individual handling a claim without a lawyer?
Yes. The same neutral documentation is available to individuals, and it records what is physically on the roadway. Delator Claims Division does not advise on the claim, its deadlines or strategy, does not negotiate with insurers, and does not determine fault or value.
Available statewide, including
Every Tennessee county is covered. See the deployment map for typical response tiers by county.
Request documentation anywhere in Tennessee
Dispatch is staffed around the clock. For time-sensitive scenes, calling is fastest; the request form works for routine and scheduled assignments.