Accident Data Analysis (EDR/CDR) for Motor-Vehicle Claims and Litigation
Objective Vehicle Data for Claims, Investigations, and Litigation
Accident data analysis is the evaluation and interpretation of recorded vehicle information after it has been retrieved from a supported Event Data Recorder or related electronic module. Depending on the vehicle, available parameters may include speed, braking, accelerator input, steering, restraint systems, crash severity, and event timing.
Crenshaw Investigations provides EDR/CDR retrieval, vehicle inspection, photographic documentation, accident data analysis, and reporting services throughout California. Analysis focuses on what the available recorded values represent, how they relate to the event, and what vehicle-specific limitations apply.
Recorded information should be considered with vehicle damage, photographs, statements, police reports, repair records, and other available evidence. EDR data is one source of technical evidence and should not be treated as a complete accident reconstruction or an independent determination of legal fault.
Have an active motor-vehicle matter, or want a practical overview of EDR evidence?
What Is Accident Data Analysis?
Accident data analysis involves reviewing native files and manufacturer-generated reports obtained from a supported vehicle, identifying the recorded event or events, and evaluating the available parameters within the definitions and limitations established for that vehicle.
Analysis may address event status, pre-crash timing, speed, service-brake information, accelerator or throttle input, steering, restraint status, deployment commands, delta-V, crash-pulse timing, ignition-cycle information, and other recorded values when available.
Meaningful analysis also requires attention to manufacturer-specific terminology, sign conventions, recording intervals, event-locking behavior, threshold requirements, module condition, and whether the recorded event reasonably corresponds with the collision under review.
The resulting analysis may then be compared with photographs, damage, statements, police reports, repair documentation, and other evidence relevant to the assignment.
EDR/CDR Accident Data Analysis Services
Depending on the assignment and requested scope of work, analysis services may include:
- Review of EDR/CDR native files and manufacturer-generated reports
- Identification and comparison of recorded event records
- Evaluation of speed, braking, accelerator, steering, restraint, and deployment information
- Review of delta-V, crash-pulse timing, and event sequence where recorded
- Comparison of recorded values with photographs, damage, statements, and other evidence
- Identification of vehicle-specific recording limitations and data gaps
- Written data-analysis reporting
- Technical consultation regarding recorded findings and limitations
What Data May Be Analyzed?
The information available varies by vehicle make, model, model year, installed systems, event type, and recording parameters. Depending on the supported vehicle and recorded event, available information may include:
- Pre-crash vehicle speed
- Service-brake status and brake-pressure information, where recorded
- Accelerator-pedal or throttle input
- Engine or electric-motor speed
- Steering input
- Stability-control and ABS activity
- Longitudinal and lateral delta-V
- Crash-pulse timing and event sequence
- Driver and passenger restraint status
- Airbag and pretensioner deployment commands
- Occupant-classification information, where recorded
- Ignition-cycle, odometer-at-event, and diagnostic information, where recorded
- Other manufacturer-specific vehicle and crash information
How Accident Data Analysis Assists
Attorneys and Law Firms
Accident data analysis may assist counsel representing plaintiffs and defendants in evaluating recorded speed, braking, accelerator input, steering, restraint status, crash severity, event timing, and consistency with statements or other evidence.
Insurance Companies and Claims Professionals
Claims professionals, SIUs, corporate risk departments, and authorized business clients may use EDR analysis to evaluate disputed facts, exposure, consistency, subrogation issues, and questions requiring further investigation. Recorded data does not independently establish fraud or legal fault.
Individuals and Vehicle Owners
Vehicle owners may seek analysis of previously retrieved EDR information to better understand what the recorded values show concerning speed, braking, accelerator input, steering, restraint status, deployment activity, or other available parameters.
How Accident Data Analysis Can Assist a Case
When collision accounts or technical issues are disputed, analysis of recorded vehicle data can provide objective information that can be compared with the other evidence in the matter.
Comparing Recorded Data With a Driver Account
If a statement describes hard braking, accelerator release, or a particular speed before impact, available EDR parameters may provide an objective technical record of the available pre-crash interval.
Those values can be compared with the driver’s account, photographs, damage, and other evidence relevant to the disputed issue.
Evaluating Event Timing and Sequence
Some vehicles may contain more than one event record. Analysis of event status, timing, pre-crash values, and delta-V information may help distinguish separate impacts.
Identifying which event record most closely corresponds with the collision under review can help focus further evaluation.
Identifying Important Data Limitations
Analysis may reveal that a particular parameter was not recorded, that a threshold was not met, or that the available interval does not answer the disputed question.
Identifying those limitations is part of an objective work product and helps prevent the recorded information from being overstated.
Accident Data Analysis Frequently Asked Questions
What is accident data analysis?
Is data analysis the same as data retrieval?
Can accident data analysis determine fault?
Can previously retrieved EDR data be analyzed?
What records are useful when analyzing EDR data?
Does every vehicle record the same information?
Why Choose Crenshaw Investigations?
Crenshaw Investigations combines licensed investigative experience with Certified EDR/CDR Technician & Data Analyst credentials, specialized retrieval systems, forensic vehicle documentation, and clear written reporting.
Flexible Retrieval Capability
Assignments may involve standard diagnostic-connector retrieval or supported direct-to-module access when vehicle condition requires alternative access.
Assignment-Focused Deliverables
Depending on the agreed scope, deliverables may include inspection photography, available native data files, manufacturer-generated reports, written retrieval and analysis reports, and technical consultation.
Impartial Evidence Evaluation
Available EDR information is evaluated in consideration of the surrounding evidence rather than to support a predetermined outcome. Crenshaw Investigations serves attorneys, law firms, insurance companies, businesses, individuals, and vehicle owners throughout California.
Submit an EDR Matter for Review
To request preliminary review of a potential EDR/CDR assignment, download and complete our fillable EDR Case Submission Form. Then return to this section and upload the completed form with any available non-sensitive vehicle photographs or appropriate supporting vehicle-related documents.
We will review the available vehicle, location, access, timing, and assignment information and respond by email regarding likely vehicle support, retrieval feasibility, requested scope, estimated fees, authorization requirements, and appropriate next steps.
Upload Your Completed Submission
Enter your contact information below and upload the saved EDR Case Submission Form. Supporting photographs or appropriate vehicle-related documents may also be included.
Submission does not create an investigative, consulting, or expert engagement, confirm acceptance of the assignment, or authorize work. An assignment is accepted only after availability, scope, estimated fees, authorization, and terms are confirmed in writing. Do not upload medical records, Social Security numbers, financial records, or other highly sensitive or privileged materials through this form.
Learn More About EDR Evidence
Understanding Event Data Recorder (EDR) Evidence
A Practical Guide for Motor-Vehicle Claims, Investigations, and Litigation
Download our complimentary educational guide to learn what Event Data Recorder evidence is, what recorded vehicle information may be available, how the data is retrieved and preserved, and when it may assist with motor-vehicle claims, investigations, and litigation.
In this guide, you’ll learn:
- What EDR evidence is—and what it cannot determine by itself
- How recorded crash data is retrieved, preserved, and evaluated
- What vehicle, driver-input, restraint, and event information may be available
- How EDR evidence may assist claims evaluation, investigations, discovery, litigation, and settlement strategy
Crenshaw Investigations offers professional investigations and services in the following areas of Los Angeles County:
Acton, Agoura, Agoura Hills, Agua Dulce, Alhambra, Alondra Park, Altadena, Antelope Valley, Arcadia, Arleta, Artesia, Athens, Atwater Village, Avalon, Avocado Heights, Azusa, Baldwin Hills, Baldwin Park, Bel Air, Bell, Bell Gardens, Bellflower, Beverly Crest, Beverly Grove, Beverly Hills, Beverlywood, Boyle Heights, Bradbury, Brentwood, Burbank, Calabasas, Canoga Park, Canyon Country, Carson, Castaic, Century City, Cerritos, Charter Oak, Chatsworth, Cheviot Hills, Chinatown, Citrus, Claremont, Commerce, Compton, Covina, Crescenta Valley, Cudahy, Culver City, Cypress Park, Del Aire, Del Rey, Diamond Bar, Downey, Downtown, Duarte, Eagle Rock, East Hollywood, East Los Angeles, East Pasadena, East Rancho Dominguez, East San Gabriel, East Whittier, Echo Park, El Monte, El Segundo, El Sereno, Encino, Exposition Park, Fairfax, Florence-Firestone, Florence-Graham, Franklin Canyon, Gardena, Glassell Park, Glendale, Glendora, Granada Hills, Hancock Park, Harbor City, Harbor Gateway, Hacienda Heights, Hawaiian Gardens, Hawthorne, Hermosa Beach, Hidden Hills, Highland Park, Hollywood, Hollywood Heights, Hollywood Hills, Huntington Park, Hyde Park, Industry, Inglewood, Irwindale, Jefferson Park, Koreatown, La Cañada Flintridge, La Crescenta, La Habra Heights, La Mirada, La Puente, La Verne, Ladera Heights, Lake Balboa, Lake Los Angeles, Lakeview Terrace, Lakewood, Lancaster, Lawndale, Leimert Park, Lennox, Leona Valley, Lincoln Heights, Littlerock, Lomita, Long Beach, Los Angeles, Los Feliz, Lynwood, Malibu, Manhattan Beach, Mar Vista, Marina del Rey, Mayflower Village, Maywood, Mid-City, Mid-Wilshire, Mission Hills, Monrovia, Montebello, Montecito Heights, Monterey Park, Montrose, Mount Olympus, Mount Washington, Newhall, North El Monte, North Hills, North Hollywood, Northridge, Norwalk, Pacific Palisades, Pacoima, Palmdale, Palms, Palos Verdes Estates, Panorama City, Paramount, Pasadena, Picfair Village, Pico Rivera, Playa del Rey, Playa Vista, Pomona, Pomona Valley, Porter Ranch, Quartz Hill, Rancho Palos Verdes, Rancho Park, Redondo Beach, Reseda, Rolling Hills, Rolling Hills Estates, Rosemead, Rowland Heights, San Dimas, San Fernando, San Fernando Valley, San Gabriel, San Gabriel Valley, San Marino, San Pasqual, San Pedro, Santa Clarita, Santa Clarita Valley, Santa Fe Springs, Santa Monica, Saugus, Sawtelle, Shadow Hills, Sherman Oaks, Sierra Madre, Signal Hill, Silver Lake, South El Monte, South Gate, South Los Angeles, South Pasadena, South San Gabriel, South San Jose Hills, South Whittier, Spaulding Square, Stevenson Ranch, Studio City, Sun Valley, Sunland, Sylmar, Tarzana, Temple City, Terminal Island, Topanga, Topanga Canyon, Torrance, Toluca Lake, Tujunga, University Park, Val Verde, Valencia, Valinda, Valley Glen, Valley Village, Van Nuys, Venice, Vernon, View Park-Windsor Hills, Vincent, Walnut, Walnut Park, Watts, West Adams, West Athens, West Carson, West Covina, West Hills, West Hollywood, West Los Angeles, West Puente Valley, West Rancho Dominguez, West Whittier-Los Nietos, Westchester, Westlake, Westlake Village, Westmont, Westwood, Whittier, Wilmington, Windsor Square, Winnetka, Woodland Hills, Willowbrook.
Crenshaw Investigations offers professional investigations and services in the following areas of Ventura County:
Bell Canyon, Camarillo, Casa Conejo, Channel Islands Beach, El Rio, Fillmore, Lake Sherwood, Meiners Oaks, Mira Monte, Moorpark, Newbury Park, Oak Park, Oak View, Ojai, Oxnard, Piru, Point Mugu, Port Hueneme, San Buenaventura, Santa Paula, Saticoy, Simi Valley, Somis, Thousand Oaks, Ventura.
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