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Models of Vehicular Collision: Development and Simulation with Emphasis on Safety V: MEDUSA: Theory, Examples, User's Manual, Programmer's Guide and Code

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  • O'Reilly, Oliver M.
  • Papadopoulos, Panayiotis
  • Lo, Gwo-Jeng
  • Varadi, Peter C.

Abstract

This document constitutes a final report for MOU 39. It contains a User's Manual, Programmer's Guide, source code and underlying theory for the program MEDUSA. This program is capable of simulating both the normative driving dynamics and collision dynamics of an arbitrary number of vehicles. Its range of validity lies in the assumed nature of the vehicular collision, and it is recommended for use in studying low relative velocity impact scenarios at large time-scales. Keywords: IVHS America, Vehicle Dynamics, Collision Dynamics, Safety, computer Simluation, Animal and Simulation; A significant portion of this report is devoted to the vehicle and road models, the former composed of tire, collision, suspension and sprung mass models, augmented by a collision detector algorithm. The road model is sufficiently general to encompass variations in banking and sloping of highways. The report also contains the simulation results of several representative vehicular collision scenarios. These results are supplemented by the input files for MEDUSA and the visualization program SMARTPATH. Several features of these examples are also discussed in light of the improvements to MEDUSA that they motivated.

Suggested Citation

  • O'Reilly, Oliver M. & Papadopoulos, Panayiotis & Lo, Gwo-Jeng & Varadi, Peter C., 1999. "Models of Vehicular Collision: Development and Simulation with Emphasis on Safety V: MEDUSA: Theory, Examples, User's Manual, Programmer's Guide and Code," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt48v7j4g8, Institute of Transportation Studies, UC Berkeley.
    • Handle: RePEc:cdl:itsrrp:qt48v7j4g8
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    References listed on IDEAS

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    1. O'reilly, Oliver M. & Papadopoulos, Panayiotis & Lo, Gwo-jeng & Varadi, Peter C., 1997. "Models Of Vehicular Collision: Development And Simulation With Emphasis On Safety I: Development of a Model for a Single Vehicle," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt2g4728gp, Institute of Transportation Studies, UC Berkeley.
    2. O'Reilly, Oliver M. & Papadopoulos, Panayiotis & Lo, Gwo-jeng & Varadi, Peter C., 1998. "Models Of Vehicular Collision: Development And Simulation With Emphasis On Safety IV: An Improved Algorithm For Detecting Contact Between Vehicles," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt3568z4g4, Institute of Transportation Studies, UC Berkeley.
    3. O'reilly, O. M. & Papadopoulos, P. & Lo, G.-j. & Varadi, P. C., 1998. "Models Of Vehicular Collision: Development And Simulation With Emphasis On Safety III: Computer Code Programmer's Guide And User Manual For Medusa," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt7gt1464b, Institute of Transportation Studies, UC Berkeley.
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