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Analysis Service

The Traffic Accident Analysis Division conducts analysis and research on the course of a vehicle, center line invasion, collision speed, fleeing vehicle, vehicle defect, driver identification, interpretation of passenger movement in minor traffic accidents, and intentional traffic accidents. To identify the causes and facts of the traffic accidents, the type of damage and the final position of the accident vehicle, the traces and residues in the accident scene, clothes of the victims, the video recording device of the vehicle (black box), digital running recorder, etc. are examined and analyzed. For reconstruction of the accident, the accident interpretation program is used.

  • Interpretation of Traffic Accident

    Interpretation of traffic accident dynamics, such as vehicle defect, accident speed, human impact and injury, center line invasion, driver identification, crosswalk crash, etc. and accident reconstruction analysis and interpretation

  • Tracking of a Fleeing Vehicle

    Analysis and interpretation of traffic accidents such as vehicle-to-vehicle or vehicle-to-pedestrian hit-and-run, pedestrian crash, run-over injury, etc.

  • Traffic Crime Analysis

    Analysis of driver's intention and awareness of traffic insurance fraud, reproduction of traffic accident and interpretation of human behavior using PC-Crash and Madymo, analysis of a possibility of a minor traffic accident

Introduction of Laboratory

The Traffic Accident Analysis Division consists of an Accident Analysis Lab, Fleeing Vehicle Lab, and Traffic Crime Lab.

01 Accident Analysis Lab

The Accident Analysis Lab is responsible for analysis and research such as dynamics analysis of an accident vehicle, vehicle defect analysis, analysis and interpretation of accident recording devices, air accidents, railway accidents, and ship accidents.

  • Interpretation of Dynamics
    • Center line invasion: collision point, collision posture, collision speed
    • Accident speed: skid marks, yaw mark, momentum-energy conservation, experimental formula, theoretical formula
    • Driver identification: occupant’s deviation, occupant’s location
    • Damaged vehicle speed: accident speed analysis for the damaged vehicle based on the experiment and theory
    • Crosswalk crash: vehicle-to-person crash point, crosswalk shock
    • Analysis of collision point, collision posture,
      and collision speed
    • Speed analysis for damaged vehicle
  • Vehicle Defect
    • Analysis on sudden unintended acceleration accident: sudden unintended acceleration, sudden acceleration, etc.
    • Analysis on chassis system accident: braking device, steering device, suspension system, etc.
    • Analysis on engine system accident: engine, mission and driving gear, etc.
    • Analysis on electric field system accident: electric field, sensor, ETACS, etc.
    • Analysis of defects in the engine
      and chassis systems
    • Analysis of presumed sudden unintended
      acceleration accident analysis
  • Analysis and Interpretation of Accident Recording Devices
    • Image interpretation: collision and run-over injury, speed, lane change, possibility of avoidance, etc.
    • EDR & CDR: analysis and interpretation of data recorded in the ACU (Airbag Control Unit)
    • Analysis on the digital running recorder: analysis of vehicle operation information and accident interpretation
    • Analysis on the digital running recorder &
      interpretation of the accident
    • EDR data analysis &
      accident interpretation
  • Analysis & Interpretation of Air, Railway, and Ship Accidents
    • Analysis and interpretation of air accident: helicopters, light aircrafts, etc.
    • Analysis and interpretation of ship accident: fishing vessels, merchant vessels, etc.
    • Analysis and interpretation of railway accident: subways, trains, electric trains, etc.
    • Helicopter Accident Interpretation
    • Train Accident Interpretation
    • Ship Accident Interpretation
02 Fleeing Vehicle Lab

The Fleeing Vehicle Lab performs analysis and research on the identification of the fact whether there was a hit-and-run traffic accident, including the impact between a vehicle and a pedestrian and run-over injury, vehicle-to-vehicle (vehicle, motorcycle, bicycle) mutual impact, traffic accident related to clothing, etc.

Major Services

  • To examine vehicle-to-vehicle mutual impacts, the road clearance of the damage on the accident-related vehicle and the shape and attachment (paint, resin, etc.) are compared.
  • For the impact on a pedestrian and run-over injury, the deformation and damage by human body impact in the front and the bottom of the vehicle and whether clothing traces and attached fibers and victims' blood marks are detected are compared and analyzed.
  • In addition, a vehicle model is identified by examining whether there are traces related to the traffic accident, such as car paint on clothing and shoes, tire patterns, damage traces, etc., and pieces of headlight left behind at the accident site, plastic pieces, etc.
  • Fleeing vehicles that shocked
  • Stamp of a vehicle number of
    an escape vehicle
  • Paint of an escape vehicle
    attached to a bicycle
  • Fibers and traces attached to the
    bottom of a vehicle
03 Traffic Crime Lab

The Traffic Crime Lab is responsible for the analysis of accidents related to insurance crimes. The laboratory carries out motion analysis for vehicles and persons using the PC-Crash and Madymo programs, which are traffic accident interpretation programs.

  • Insurance crimes are divided into a soft crime and hard crime according to the level and intention of criminality.
  • It is a general pattern that a soft crime is not intentional and its criminality is weak, but it claims excessive medical expenses by exaggerating symptoms even in the case of a minor traffic accident or receives the insurance benefit more than the proper level by long-term hospitalization.
  • Hard crime is intentional and intelligent with strong criminality and recently has a tendency to be associated with violent crimes or to evolve systematically.
  • Soft Crime

    Soft crime is generally classified as ‘minor damage analysis,' and analysis is performed using the PC-Crash and Madymo programs for each type of accident.

    • Vehicle-to-Vehicle: Analysis on the motion change and impact force of a vehicle occupant
    • Vehicle-to-Person: Analysis on the motion change and impact force of a pedestrian due to crash with a vehicle
    • Single vehicle: Analysis on the motion change of a vehicle occupants in single vehicle accidents (sudden braking, etc.)
  • Hard Crime

    Hard crime is generally classified as 'insurance fraud or insurance crime,’ and analysis is performed on the nature of the accident and the aggressiveness of accident avoidance.

    • Analysis on intentionality and damage exaggeration of the driver
    • Accident reconstruction
    • Driver identification
  • Analysis on Vehicle Occupant Motion Change
  • Vehicle Occupant Impact Analysis
  • Analysis on Pedestrian Motion Change
  • Reconstruction of a Pedestrian Crash
  • Analysis on an intentional accident caused by a course change
  • Analysis on an intentional accident caused by violation of the law (tail biting)
  • Analysis on fake traffic accident

Lab Photo

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Laboratory Equipment

Laboratory Equipment



  • Dynamic behavior interpretation program of human body model
  • - Used for interpretation of vehicle to pedestrian collisions, whether or not a passenger is injured, interpretation of dynamic behaviors of passengers in vehicle to vehicle collisions, etc.


Laboratory Equipment



  • Traffic accident analysis and reproduction simulation program
  • Provision of vehicle database
  • Used for interpretation of vehicle to vehicle collision, interpretation of motions of vehicles and analysis of the causes for traffic accidents, etc.


Laboratory Equipment

3D Scanner


  • 3D scanning for traffic accident scenes and accident vehicles
  • Building a vehicle database with 3D scanning
  • Realistic accident situation reproduction in conjunction with PC-crash


Laboratory Equipment

Stereo microscope


  • Equipment for surface structure investigation and research of evidence
  • Used for accident mark inspection on clothing, paint, and vehicle parts


Laboratory Equipment

Polarized Microscope


  • Equipment for precise morphological analysis of micro evidence of traffic accidents
  • Identification of materials such as thin films, fibers, etc. and particle analysis


Laboratory Equipment

FT-IR spectrometer


  • Equipment for investigation of characteristics and research of micro evidence
  • Inspection on whether or not components are the same with the infrared spectrum for a very small amount of fiber, paint, resins, etc.


Major Analysis Cases

Major Analysis Cases

불임치료목적으로 복용한 반묘(cantharides)에
의한 사망사건

강원도 원주시 한의원에서 불임치료목적으로 지은 한약, 한약가루약(일명 반묘가루) 및 한약추출액을 혼합하여 마신 직후 환자가 사망하였으며, 감정결과 위 내용물 및 혈액에서 칸타리 딘(cantharidin)이 검출됨. 칸타리딘은 반묘의 주성분으로 치사량이 10mg이고 과량복용시 복통, 이질, 토혈, 혈뇨, 혈압 저하 등에 이어 사망한다고 알려져 있음