UF/TRC  WORKSHOP ON ROUNDABOUTS, <br />Sheraton Orlando North Hotel, Maitland, Florida.<br />Daniel Shihundu, P.Eng<br />A...
Agenda<br /><ul><li>TORUS Overview
Iterative Design Process
GPS Field Research
TORUS Workflow
Live TORUS Demonstration
Summary
Questions? </li></li></ul><li>TORUS Overview<br /><ul><li>Feasibility Analysis
Planning
Safety
Initial Layouts and Geometrics</li></li></ul><li>TORUS Overview<br /><ul><li>Approximating ICD location and size
Evaluating alternative roundabout locations, approach alignments and associated deflection
Evaluating fastest paths/speeds and speed consistency
Sight distance calculations
Reviewing vehicle turning movements/Fluid drive paths
Enhancing public involvement exhibits
ROW requirement studies
Generating preliminary layouts for client review
Managing and comparing iterations</li></li></ul><li>Agenda<br /><ul><li>TORUS Overview
Iterative Design Process
GPS Field Research
TORUS Workflow
Live TORUS Demonstration
Summary
Questions? </li></li></ul><li>Iterative Design Process <br />
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Designing With Torus Presentation Daniel Shihundu

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Designing With Torus Presentation Daniel Shihundu

  1. 1. UF/TRC WORKSHOP ON ROUNDABOUTS, <br />Sheraton Orlando North Hotel, Maitland, Florida.<br />Daniel Shihundu, P.Eng<br />August 18, 2009<br />
  2. 2. Agenda<br /><ul><li>TORUS Overview
  3. 3. Iterative Design Process
  4. 4. GPS Field Research
  5. 5. TORUS Workflow
  6. 6. Live TORUS Demonstration
  7. 7. Summary
  8. 8. Questions? </li></li></ul><li>TORUS Overview<br /><ul><li>Feasibility Analysis
  9. 9. Planning
  10. 10. Safety
  11. 11. Initial Layouts and Geometrics</li></li></ul><li>TORUS Overview<br /><ul><li>Approximating ICD location and size
  12. 12. Evaluating alternative roundabout locations, approach alignments and associated deflection
  13. 13. Evaluating fastest paths/speeds and speed consistency
  14. 14. Sight distance calculations
  15. 15. Reviewing vehicle turning movements/Fluid drive paths
  16. 16. Enhancing public involvement exhibits
  17. 17. ROW requirement studies
  18. 18. Generating preliminary layouts for client review
  19. 19. Managing and comparing iterations</li></li></ul><li>Agenda<br /><ul><li>TORUS Overview
  20. 20. Iterative Design Process
  21. 21. GPS Field Research
  22. 22. TORUS Workflow
  23. 23. Live TORUS Demonstration
  24. 24. Summary
  25. 25. Questions? </li></li></ul><li>Iterative Design Process <br />
  26. 26. Iterative Design Process <br /><ul><li>Assume approximate ICDs and check against site constraints
  27. 27. Lay out entries for approaches
  28. 28. Check fastest paths
  29. 29. Sketch in line for fastest path and fit radii
  30. 30. Iterate if needed
  31. 31. Check entry angles
  32. 32. Revise if needed
  33. 33. Check design vehicle paths
  34. 34. Modify if needed
  35. 35. Draw roundabout accurately</li></li></ul><li>Agenda<br /><ul><li>TORUS Overview
  36. 36. Iterative Design Process
  37. 37. GPS Field Research
  38. 38. TORUS Workflow
  39. 39. Live TORUS Demonstration
  40. 40. Summary
  41. 41. Questions? </li></li></ul><li>GPS Field Research <br /><ul><li>Conducted in conjunction with the Universität der Bundeswehr München, Germany
  42. 42. Study used to develop key TORUS algorithms
  43. 43.  Observations were intended to provide data for:
  44. 44. Variation in vehicle paths vs. ICD
  45. 45. Speed profiles based on different vehicles
  46. 46. Acceleration/deceleration values and patterns for different roundabout configurations
  47. 47. Locations where changes in acceleration/deceleration occur</li></li></ul><li>GPS Field Research <br />
  48. 48. GPS Field Research <br />
  49. 49. GPS Field Research <br />
  50. 50. GPS Field Research <br />
  51. 51. GPS Field Research <br />
  52. 52. Agenda<br /><ul><li>TORUS Overview
  53. 53. Iterative Design Process
  54. 54. GPS Field Research
  55. 55. TORUS Workflow
  56. 56. Live TORUS Demonstration
  57. 57. Summary
  58. 58. Questions? </li></li></ul><li>TORUS Workflow<br />Designing and Checking occur simultaneously...<br />Roundabouts are generated based on vehicle swept path in TORUS. With immediate feedback on the roundabout layout while design vehicles, fastest paths and sight lines are evaluated..<br />
  59. 59. TORUS Workflow<br /><ul><li>Step 1: Generate/Modify/Analyze
  60. 60. Set roundabout Design guidelines parameters
  61. 61. Design Vehicle Movements
  62. 62. Fastest Paths
  63. 63. Sight lines
  64. 64. Generate Reports
  65. 65. Step 2: Fitting Refined Edges (Geometric elements)
  66. 66. Confirm Fastest Paths on refined edges
  67. 67. Confirm vehicle movements not supported by TORUS
  68. 68. Make necessary adjustments to geometrics </li></li></ul><li>TORUS Workflow<br /><ul><li>Design Guidelines
  69. 69. Vehicles
  70. 70. Inscribe Circle
  71. 71. Circulatory Offsets
  72. 72. Footprint offset
  73. 73. Legs
  74. 74. Bypass Lane Offset
  75. 75. Splitter Island Envelope
  76. 76. Refuge / Crosswalk
  77. 77. Fastest path
  78. 78. Refined Edges
  79. 79. Sight Lines</li></li></ul><li>TORUS Workflow<br /><ul><li>Generate Roundabout
  80. 80. Inscribe Circle Diameter
  81. 81. Central Island Diameter
  82. 82. Truck Apron
  83. 83. Toolbox
  84. 84. Add Approach legs
  85. 85. Delete Legs
  86. 86. Edit Legs
  87. 87. Replace Leg Reference Geometry
  88. 88. Rotate Legs
  89. 89. Save Iterations</li></li></ul><li>TORUS Workflow<br /><ul><li>Evaluation Tools
  90. 90. Evaluate Fastest Path
  91. 91. Evaluate Sight Lines
  92. 92. Evaluate Movements
  93. 93. Run Animation
  94. 94. Refinement
  95. 95. Refine Arcs
  96. 96. Generate Reports
  97. 97. Fastest Path
  98. 98. Curve Table
  99. 99. Design Manager
  100. 100. Design iterations</li></li></ul><li>Agenda<br /><ul><li>TORUS Overview
  101. 101. Iterative Design Process
  102. 102. GPS Field Research
  103. 103. TORUS Workflow
  104. 104. Live TORUS Demonstration
  105. 105. Summary
  106. 106. Questions? </li></li></ul><li>Agenda<br /><ul><li>TORUS Overview
  107. 107. Iterative Design Process
  108. 108. GPS Field Research
  109. 109. TORUS Workflow
  110. 110. Live TORUS Demonstration
  111. 111. Summary
  112. 112. Questions? </li></li></ul><li>Summary<br /><ul><li>TORUS is a design tool requiring good engineering practice
  113. 113. TORUS users need to understand its capabilities
  114. 114. TORUS is not a substitute for sound engineering judgment
  115. 115. TORUS users should seek to increase their roundabout design knowledge through training, conferences, workshops etc
  116. 116. TORUS does not eliminate the need for peer reviews early during the design process</li></li></ul><li>Agenda<br /><ul><li>TORUS Overview
  117. 117. Iterative Design Process
  118. 118. GPS Field Research
  119. 119. TORUS Workflow
  120. 120. Live TORUS Demonstration
  121. 121. Summary
  122. 122. Questions? </li></li></ul><li>Thank You For Your Time<br />

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