Our Engineering Analysis of Traffic Accidents including Accident Investigation and Reconstruction

Our Engineering Analyses of Traffic Accidents and Crashes include, as appropriate, a complete  investigation, engineering analysis  and reconstruction of the traffic accident, either manually or by computer, as required to address the required issues. Our engineering analyses of traffic accidents include analysis of potential roadway issues and effects of driver actions and inactions .

As part of the Engineering Analyses of Traffic Accidents and Crashes we perform the following activities , and others, when appropriate:

• accident site inspection, measurement and photography                                                                       
• inspection, measurement and photography of damaged vehicles and vehicle components 

• inspection of vehicle lamps (headlights, taillights, etc.) and lamp filaments, when appropriate

• sight distance and nighttime visibility studies

• skid testing of vehicles and determination of "drag" factors

• accident sight photogrammetry • graphical photogrammetry from photographs

• accident sight photogrammetry                                                                  
• graphical photogrammetry from photographs                                                                                                         
• study and consideration of accident evidence and data available from other sources, including:                                                              
•  police accident investigations, Crash Data Retrieval (CDR, the so-called vehicle 'black box') from the vehicles, and                                                                                         
• statements and testimony of witnesses (with appropriate note of the witnesses' relation to persons involved in the subject traffic accident)

• evaluation of roadway surface condition, skidmarks, yawmarks, scuff marks, other tiremarks, gouges, other roadway and off-roadway surface damage, and debris

• evaluation of vehicle and vehicle component damage, including evaluation of vehicle lamp and lamp filament condition to determine if lamps were on at collision

• evaluation of mechanical injuries to pedestrians and vehicle occupants

• evaluation of roadway design and pre-accident condition (for safety) and traffic control devices, such as lane lines, warning and other signs, traffic control lights and other signals (for suitability)

• preparation of scale site drawings, and use in accident analysis

• determination of the pre-collision movements of vehicles and pedestrians in relation to time, distance and each other (time-distance studies)

• engineering analysis of the movements (dynamics) of vehicles, pedestrians, and vehicle occupants during an accident, relative to each other, and relative to fixed items in the accident area, such as utility poles

• determination of acceleration and maneuverability capabilities of vehicles, particularly related to possible accident activities

• complete traffic accident reconstruction, both manually and by computer, to address the required issues    

As part of the Engineering Analyses of Traffic Accidents and Crashes we address the following issues, and others, when appropriate: