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John Serth
Clifton Park, New York
Engineering
accident site analysis
accident reconstruction
field surveys
aerial photography
determination of measurements from photographs
determination of coefficient of friction
sight distance
pre-collision speed (using both momentum and energy methods)
pre-skid speed
superelevation
degree of curvature
length of vertical curve
grade
point of impact
traffic signal phases
construction of courtroom displays
engineering drawings
two and three dimensional displays
computer generated video
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