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The Fidelity Required for Roadway Development and Evaluation

The Fidelity Required for Roadway Development and Evaluation. “Development of Standardized Descriptions of Driving Simulator Scenarios: Human Factors Considerations” Workshop at TRB January 2005. Anuj K. Pradhan Human Performance Laboratory University of Massachusetts, Amherst. Introduction.

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The Fidelity Required for Roadway Development and Evaluation

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  1. The Fidelity Required for Roadway Development and Evaluation “Development of Standardized Descriptions of Driving Simulator Scenarios: Human Factors Considerations” Workshop at TRB January 2005 Anuj K. Pradhan Human Performance Laboratory University of Massachusetts, Amherst

  2. Introduction • Ecological Validity/Fidelity of Visual Databases • Different : • Simulator Platforms • Approaches/Methodology for Creating Databases • Development Tools • Standardization Across Platforms University of Massachusetts

  3. Database Development • Considerations for Roadway Development • Graphical • Resolution • Shading • Texture • Terrain and Roadway • Road Coordinates • Lane Width • Horizontal and Vertical Curvatures • Visual Elements/Traffic Control Devices • Signs • Pavement Markings University of Massachusetts

  4. Graphical: Resolution 50 feet distance 640X480 pixels 1024 X 768 pixels University of Massachusetts

  5. Graphical: Resolution 300 feet distance 640X480 pixels 1024 X 768 pixels University of Massachusetts

  6. Graphical: Resolution 1024 x 768 640 x 480 University of Massachusetts

  7. Graphical: Shading • Shading • Options • Flat • Gouraud • Illuminated • Effects of Shading on Viewers’ Perception • Standardize Reporting Methods University of Massachusetts

  8. Graphical: Shading - Types University of Massachusetts

  9. Graphical: Shading - Types Flat Illuminated Gouraud University of Massachusetts

  10. Graphical: Shading - Types University of Massachusetts

  11. Graphical: Textures • Texture • Texture Sources • Texture Mapping • Resolution • Filters/Application University of Massachusetts

  12. Graphical: Textures - Source Building 1 Building 2 University of Massachusetts

  13. Graphical:TexturesMapping, Resolution etc. University of Massachusetts

  14. Graphical:TexturesMapping, Resolution etc. >> University of Massachusetts

  15. Signs • Signs • Texture or Polygons? • Text – Type, Size • Anti-Aliasing University of Massachusetts

  16. Signs: Antialiasing University of Massachusetts

  17. Signs: Antialiasing University of Massachusetts

  18. Pavement Markings • Pavement Markings • Textures or Polygons? • Z – Buffering • Standards for Markings University of Massachusetts

  19. Pavement Markings: Textures vs. Polygons University of Massachusetts

  20. Pavement Markings: Textures vs. Polygons Video University of Massachusetts

  21. Database Development • Bringing it all together • High Fidelity in Virtual Environments • Standardized Descriptions of Scenarios • Standards and Vocabulary to Facilitate Replication University of Massachusetts

  22. Database Development • Demonstration • Central Artery/Tunnel Project (Big Dig) Boston University of Massachusetts

  23. Thank You • Questions/Discussion University of Massachusetts

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