This content is not included in your SAE MOBILUS subscription, or you are not logged in.
The VTS Single-Vehicle Trajectory Simulation
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 25, 1985 by SAE International in United States
Annotation ability available
A vehicle trajectory simulation called VTS has been developed as an aid for reconstruction of automobile accidents. The two dimensional vehicle has longitudinal, lateral and yaw degrees of freedom, a point mass at the center of gravity) yaw inertia about the center of gravity and four contact points (“tires”) which can be arbitrarily positioned. No collision or aerodynamic forces are modeled. The traction surface is represented as a flat plane with a specified nominal friction coefficient. Several quadrilateral “patches” may be applied to the surface to change the friction coefficient in specific regions. User vehicle control consists of timewise tables for steering angle and traction coefficient for each of the four wheels.
When used individually or in conjunction with other computer modules, VTS provides a convenient, accurate modular tool for trajectory simulation.
CitationAnderson, D., Woolley, R., Tagg, M., and Warner, C., "The VTS Single-Vehicle Trajectory Simulation," SAE Technical Paper 850252, 1985, https://doi.org/10.4271/850252.
- Segal, D.J., Report Ho. FHWA-RD-76-162 “Highway-Vehicle Object Simulation Model, 1976” Vol. 1 - user's Manual, Vol. 2 - Programmer's Manual, Vol. 3 - Engineering Manual - Analysis, Vol. 4 - Engineering Manual - Validation, Federal Highway Administration, Washington, D. C., February 1976.
- McHenry, Raymond R., “Computer Aids for Accident Reconstruction”, SAE Paper #760776, Society of Automotive Engineers, Inc., Warrendale, Pa., 1976.
- McHenry, Raymond R., and Lynch, James P., “CRASH2 Users manual, Calspan Report No. ZQ-5708-V-4, September 1976, Interium Report. U.S. Dept. of Transportation, NHTSA. Washington, D.C., 11976.
- McHenry, Raymond R. and Jones, Ian S., “Evaluation of the Accuracy of Reconstruction Techniques for Highway Accidents,” Calspan Report No. ZQ-5708-V-1, November 1975.
- McHenry, Raymond R., “Analytical Reconstruction of Highway Accidents-Extensions and Refinements of the CRASH Computer Program,” Final Report, U.S. D.O.T. Contract No. DOT-HS-5-01124, Washington, D.C., January 1976, Part 1.
- Jones, Ian, “Analytical Reconstruction of 12 Stage Collisions Using the CRASH2 and SMAC Programs”, Proceedings 23rd AAAM Conference, Louisville, KY., 1979. pp. 397 pf.
- Jones, Ian and Baum S., “Further Validation of the SMAC Program” Proceedings 23rd Stapp Conference San Diego, 1979. SAE Paper #791025.
- Warner, C.Y., et al., “Some Improvements to the SMAC Program”, Proceedings ISATA 1980, Turin, Italy, Warner, C.Y. and T.R. Perl.
- “The accuracy and Usefulness of SMAC”, SAE Paper #780902, 22nd Stapp Car Crash Conference, Ann Arbor, Michigan, October, 1978, Warner, C.Y. et al.
- “Improvements to the SMAC Program”, published by SAE #830610, International Congress & Exposition, Detroit, Michigan, February 1983.
- Warner, C.Y. et al., “Evaluation and Improvement of Computer Reconstruction Codes” Final Report, BYU Contract, (Nov. 1979).
- McHenry, Raymond R., “A Comparison of Results Obtained with Different Analytical Techniques for Reconstruction of Highway Accidents”, SAE #750893, paper presented at the 1975 SAE Meeting, Detroit, Michigan, October 13-17, 1975.
- Jones, Ian S., “Automated Accident Reconstruction” SAE paper #750894. Society of Automotive Engineers. Warrendale, Pa, 1975.
- “A Critique of the CRASH Accident Reconstruction Computer Program”, ISATA, Wolfsburg, Germany, September 1978, Warner C.Y., et al.
- Smith, R.A., et al., “Accuracy and Sensitivity of CRASH”, DOT HS 806-152 NHTSA, Washington, D.C., March 1982.
- Woolley, R.W., “The IMPAC Computer Program for Accident Reconstruction”, to be presented at 1985 SAE Winter Annual Meeting, Detroit, February.
- Woolley, R.W., “IMPAC User's Guide and Technical Manual”, Collision Safety Engineering, Inc. Orem, Utah 1984.
- Anderson, D.O., “VTS Program User's Manual”, Collision Safety Engineering, Inc. Orem, Utah, 1984.
- Woolley, R.W., et al., “Inaccuracies in the CRASH3 Program” to be presented at the 1985 SAE Winter Annual Meeting, Detroit, February 1985.