Formula Workbook for Traffic Accident Investigation and Reconstruction
Formula Workbook for
Traffic Accident Investigation and
Reconstruction
by Gary L. Stephens
A vehicle leaves a level roadway and goes airborne. The
vehicle travels 50 feet horizontally and falls 5 feet vertically. What is the
vehicle’s speed when it becomes airborne?
Do you know the correct formula to use to solve this
problem? If not, then IPTM’s Formula Workbook for Traffic Accident
Investigation and Reconstruction may help. The book, written by Gary
Stephens, was designed as an aid to sharpen and update the skills needed to
solve mathematical problems relating to traffic crash investigation and
reconstruction. Mr. Stephens presents 56 formulas that you will be able to apply
with both ease and accuracy.
Examples are provided to show the use of each formula and
the mathematical calculations required. The author then gives you the
opportunity to try your hand at solving a series of problems that call for the
selection and use of the appropriate formula(s). The problems range from those
dealing with the familiar skids to those involving deceleration on curves,
motorcycle lean angles, weight shifts and many other factors. Solutions for the
solved problems, given as examples, are presented in a simple, logical format.
The book will be especially useful to the investigator who
has previously completed formal training in this area and now wishes to review
that material or discover and strengthen any weak areas in his/her knowledge.
Mr. Stephens also includes the following tables in his
book:
- Braking percentages for vehicles
- Trigonometric functions
- Formula recognition chart
Gary Stevens served as a police officer and certified
traffic crash reconstructionist in Oklahoma from 1972 to 1983. He has instructed
at the the Oklahoma Department of Public Safety and Oklahoma State University in
crash investigation, DWI enforcement and selective traffic law enforcement. He
is a charter member of the Society of Traffic Accident Reconstructionists and
has conducted research into the characteristic marks left on skidding tires by
vehicles equipped with an anti-lock braking system.
Specifications: 267 pages; 8½”x11”; GBC bound; Publisher: IPTM (November 1989)
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