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)