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Accident reconstruction experts can employ a variety of methods in analyzing and explaining a traffic accident. The specific method is generally
determined by the type of accident and evidence available to the reconstructionist. The following methods are just a few of the scientifically validated
techniques that our experts use in reconstructing crashes.
determined by the type of accident and evidence available to the reconstructionist. The following methods are just a few of the scientifically validated
techniques that our experts use in reconstructing crashes.
The reconstruction of a traffic accident via
momentum analysis is aimed at deriving the impact
speeds of two vehicles based on known variables
such as departure speeds, angles of approach
and/or angles of departure. Thorough scene and
vehicle inspections helps ensure that the required
roadway evidence is available for such an analysis.
momentum analysis is aimed at deriving the impact
speeds of two vehicles based on known variables
such as departure speeds, angles of approach
and/or angles of departure. Thorough scene and
vehicle inspections helps ensure that the required
roadway evidence is available for such an analysis.
The reconstruction of a traffic accident via energy analysis is aimed
at deriving the impact speeds of one or more vehicles based on the
measured amount of crush (damage) on a vehicle.
at deriving the impact speeds of one or more vehicles based on the
measured amount of crush (damage) on a vehicle.
Generally, when dealing with pedestrian accident reconstruction, the expert
must first determine if the collision was a frontal projection (high front end
vehicle) or frontal wrap (low front end vehicle). In order to calculate a
vehicle's impact speed, the reconstructionist must know, at a minimum, the
distance that a pedestrian was projected (thrown) after impact.
must first determine if the collision was a frontal projection (high front end
vehicle) or frontal wrap (low front end vehicle). In order to calculate a
vehicle's impact speed, the reconstructionist must know, at a minimum, the
distance that a pedestrian was projected (thrown) after impact.
Under special circumstances, vehicle speed can be
determined by examining roadway marks. A critical
speed yaw analysis requires the precise
measurement of cords and middle ordinates for the
purpose of deriving the radius of a curve. That
radius can then be used to calculate the speed of a
vehicle through the curve.
determined by examining roadway marks. A critical
speed yaw analysis requires the precise
measurement of cords and middle ordinates for the
purpose of deriving the radius of a curve. That
radius can then be used to calculate the speed of a
vehicle through the curve.
Calculating the amount of speed that a vehicle lost
due to rotation is just one of the many techniques
employed by our experts when reconstructing a traffic
accident.
due to rotation is just one of the many techniques
employed by our experts when reconstructing a traffic
accident.
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Often, when vehicles leave the roadway, they fall, flip or vault. And, in many
cases, accident reconstruction experts can utilize a mathematical equation to
calculate the takeoff speed of the vehicle if they know the horizontal distance
the vehicle traveled, the vertical difference in elevation that the center of mass
rose or fell, and the angle of takeoff. In the illustration above the vehicle struck
a low lying obstruction and vaulted.
cases, accident reconstruction experts can utilize a mathematical equation to
calculate the takeoff speed of the vehicle if they know the horizontal distance
the vehicle traveled, the vertical difference in elevation that the center of mass
rose or fell, and the angle of takeoff. In the illustration above the vehicle struck
a low lying obstruction and vaulted.
Disclaimer: Crash Data Services, LLC and crashdataservices.net provide the information in this web site for informational purposes only. The information is not intended to
be legal advice or an expert opinion and should not be construed as such. The use of this site does not create a contractor/client relationship with any employee of Crash
Data Services, LLC. Each investigation is different. Case results depend on a variety of factors unique to each case. The results of any investigation/reconstruction do not
guarantee or predict a similar result in any future case undertaken by Crash Data Services, LLC
be legal advice or an expert opinion and should not be construed as such. The use of this site does not create a contractor/client relationship with any employee of Crash
Data Services, LLC. Each investigation is different. Case results depend on a variety of factors unique to each case. The results of any investigation/reconstruction do not
guarantee or predict a similar result in any future case undertaken by Crash Data Services, LLC