Ruhl Forensic Leader in Forensic Technology

Publications

Technical Papers


SAE 880066
Combining Scene Data with Trajectory Information for Effective Accident Simulation

Jeffery D. Rowe and Roland L. Ruhl
Ruhl and Associates, Inc.

Several accident reconstruction computer programs provide trajectory simulation information to determine the path of the vehicles from impact to rest. Many of these will even plot the information to the computer screen or printer. What all of these plotting programs seem to lack, however, is a way to include scene data such as the locations of trees, poles and parked cars.

It is possible to merge the superior scene drawing capabilities of commercial CAD/CAM packages with the results of trajectory simulations to produce a time sequence drawing or a real time simulation. This combination of tools results in output that fully depicts the reconstruction in every detail and makes an impressive display in the courtroom should litigation be involved. Techniques are discussed that are general to all brands of reconstruction and CAD/CAM software. Specific examples are given using CRASH3-PC, from the U.S. Department of Transportation and AutoCAD, from Autodesk, Inc. Copyright 1988 Society of Automotive Engineers, Inc

Society of Automotive Engineers
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Technical Papers

SAE 2013-01-0785
The Accuracy of Pedestrians in Estimating the Speed of a Moving Vehicle

SAE 2010-01-0046
Observed Errors in Distance Estimation

SAE 2007-01-0758
The Experimental Study of the Air Flow Produced by Road Vehicles and its Potential Destabilizing Effect on Nearby Pedestrians

SAE 2006-01-3557
Usable Models for Free and Forced Cooling of Commercial Vehicle Drum Brakes

SAE 2006-01-3556
Comparison of Established Heavy Brake Heating / Cooling Models with HVE Brake Designer in a Real Mountain Accident

RF2005-01
Commercial Vehicle Onboard Electronics - Global Positioning Systems, Engine Control Modules and Safety Systems and Devices

IMECE2004-59566
Analysis of a Common Cause Hypothesis in a Forensic Product Defect Analysis

SAE 2004-01-2717
Safety Concerns in Automatic Control of Heavy-Duty Articulated Vehicles

SAE 2003-01-3393
Numerical Methods for Evaluating ECM Data in Accident Reconstruction and Vehicle Dynamics

SAE 2003-01-3363
Development of a Dynamic Model of an Air-ride Seat for On-highway Trucks

SAE 2003-01-3419
Simulation of Intelligent Convoy with Autonomous Articulated Commercial Vehicles

SAE 2002-01-3104
Factors Affecting the Friction Coefficients Between Wooden and Plastic Pallets and the Wooden Floor Of A Van-type Semi-trailer

SAE 2002-01-1566
Overview of Carat-4, a Multi-body Simulation and Collision Modeling Program

SAE 2001-01-2755
Factors Affecting the Friction Coefficients Between Wooden Pallets and the Wooden Floor of a Van-type Semi-trailer

SAE 2000-01-3476
Fluid Load Analysis Within the Static Roll Model

RF2000-01
The Post-Kumho Exclusion of a Traffic Accident Reconstruction Expert

SAE 1999-01-3782
A Prototype Computer Based Test System to Test Commercial Vehicle Air Brake Systems: Application and Test Results

SAE 1999-01-3732
Dynamics and Roll Stability of a Loaded Class 8 Tractor-Livestock Semi-Trailer

SAE 973261
Prediction of Steady State Roll Threshold for Loaded Flat Bed Trailers - Theory and Calculation

SAE 971033
Ventilated Brake Rotor Air Flow Investigation

SAE 900106
Skidmark Signatures of ABS-Equipped Passenger Cars

SAE 880066
Combining Scene Data with Trajectory Information for Effective Accident Simulation