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Consistency Test Suite End-User Package and Acceptable Margin Answer Key For FHWA TNM

Table of Contents

  1. Chapter 1. Introduction
  2. Chapter 2. Variables to be tested
  3. Chapter 3 Instructions on How to Use the Test Suite
    1. Tests That Need To Be Completed
    2. Re-creation of Each Run
    3. Documenting of Results
    4. Submittal of Results
  4. Chapter 4. Acceptable Margin Answer Key
  5. Chapter 5. Detailed Test to be Performed
    1. Set 1, Effect of Speed and Pavement Type by Vehicle Type
    2. Set 2, Distance Adjustment for Different Default Ground Types.
    3. Set 3, Roadway Width (Number of Lanes), Sloping Ground, Receiver Elevation, and Receivers Collinear with Roadway
    4. Set 4, Terrain Variations
    5. Set 5, Building Rows, Parallel to Road
    6. Set 6, Tree Zones, With and Without Ground Zone
    7. Set 7, Noise Barriers
    8. Set 8, Parallel Barriers
    9. Set 9, Roadway Segments "On Structure"
    10. Set 10, Barrier Segments "On Structure"
    11. Set 11, Roadway Segments (Both On and Off Structure) Shielded and Not Shielded by Barrier Segments "On Structure"
    12. Set 12, Double Diffraction (Two Barriers between the Roadway and the Receivers)
    13. Set 13, Multiple Diffraction (Defaulting to Double Diffraction) for More Than Two Barriers between the Roadway and the Receivers
    14. Set 14, Use of "Flow Control Roadways" (Accelerating Traffic), plus Heavy Truck Deceleration on an Upgrade
    15. Set 15, Real-World Cases. 38

List of figures

Figure 1. Sample table of spreadsheet results (without results)

Figure 2. Sample graphs of sound levels and sound level differences (without results)

Figure 3. Sample table of spreadsheet results (with results)

Figure 4. Sample graphs of sound levels and sound level differences (with results)

Figure 5. Partial skew section view of single-roadway case

Figure 6. Partial skew section view of two-roadway case

Figure 7. Partial skew section view of four 12-ft wide roadways with paved 12-ft median (case 3.1.3.3)

Figure 8. Partial skew section view of four roadways in each direction with grassy median (case 3.1.4.3.3)

Figure 9. Partial skew section view of four roadways with paved median and ground sloping up

Figure 10. Partial skew section eight roadways with grassy median and ground sloping up.

Figure 11. Partial skew section view of four roadways with paved median and ground sloping down.

Figure 12. Partial skew section eight roadways with grassy median and ground sloping up

Figure 13. Partial skew section view for one roadway with vertical stacks of receivers

Figure 14. Partial plan view for case with one 12-ft roadway and collinear receivers 50 ft beyond the end of the roadway

Figure 15. Partial end view of case with one 12-ft roadway and collinear receivers 50 ft beyond the end of the roadway.

Figure 16. Partial skew section view of eight roadways with lowered terrain line in median

Figure 17. Sample partial skew section view of four roadways in 25-ft cut

Figure 18. Sample partial skew section view of four roadways on 25-ft fill.

Figure 19. Partial skew section view of four roadways with raised intervening terrain line.

Figure 20. Partial skew section view of 3.1.4.3.3 cross-section with one building row

Figure 21. Partial skew section view of 3.1.4.3.3 cross-section with two parallel building rows.

Figure 22. Partial skew section view of 3.1.4.3.3 cross-section with three parallel building rows

Figure 23. Partial skew section view of 3.1.4.3.3 cross-section with four parallel building.

Figure 24. Partial skew section view of 3.1.4.3.3 cross-section with a tree zone

Figure 25. Partial skew section view of 3.1.4.3.3 cross-section with a tree zone and a Loose Soil ground zone

Figure 26. Partial skew section view of 3.1.4.3.3 cross-section with an intervening noise barrier.

Figure 27. Partial skew section view of 3.1.4.3.3 cross-section with a noise barrier 100 ft from EOP.

Figure 28. Partial skew section view of 3.1.4.3.3 cross-section with a noise barrier 200 ft from EOP.

Figure 29. Partial skew section view of 3.1.4.3.3 cross-section with an intervening noise barrier and a vertical stack of receivers.

Figure 30. Partial skew section view of 3.1.4.3.3 cross-section with roadways and intervening noise barrier on a 25-ft fill.

Figure 31. Partial skew section view of 3.1.4.3.3 cross-section with roadways in a 25-ft cut and intervening noise barrier at the top of cut.

Figure 32. Partial skew section view of 3.1.4.3.3 cross-section with an intervening noise barrier using Pavement ground type.

Figure 33. Partial skew section view of 3.1.4.3.3 cross-section with an intervening berm.

Figure 34. Partial skew section view of single far-side noise barrier reflections using the 3.1.3.3 cross-section.

Figure 35. Partial skew section view of single far-side noise barrier reflections using the 3.1.3.3 cross-section on 25-ft fill.

Figure 36. Partial skew section view of single far-side noise barrier reflections using the 3.1.3.3 cross-section in 25-ft cut.

Figure 37. Partial skew section view of two 32-ft wide roadways in each direction with median barrier.

Figure 38. Partial cross-sectional Parallel Barrier View of parallel barriers with four roadways.

Figure 39. Partial skew section view of roadway on structure with no adjacent terrain line.

Figure 40. Partial skew section view of roadway on structure with terrain line.

Figure 41. Partial skew section view of roadway and intervening barrier both on structure with no adjacent terrain line.

Figure 42. Partial skew section view of roadway and intervening noise barrier both on structure with an adjacent terrain line.

Figure 43. Partial skew section view of roadway and intervening noise barrier both on structure with an at-grade roadway beyond the structure.

Figure 44. Partial skew section view of the 3.1.4.3.3 cross-section with two parallel intervening noise barriers.

Figure 45. Partial skew section view of the 3.1.4.3.3 cross-section with three parallel intervening noise barriers.

Figure 46. Partial plan view for "flow control roadway" case.

Figure 47. Partial skew section view of "flow control roadway" case.

Figure 48. Partial elevation (side) view for "flow control roadway" on +2% upgrade.

Figure 49. Partial elevation (side) view for "flow control roadway" on -2% downgrade.

Figure 50. Satellite imagery for case 15.1.

Figure 51. Volpe TNM 3.0 plan view for case 15.1.

Figure 52. Satellite imagery for case 15.2.

Figure 53. Volpe TNM 3.0 plan view for case 15.2.

Figure 54. Satellite imagery for case 15.3. 41

Figure 55. Volpe TNM 3.0 plan view for case 15.3.

List of acronyms and abbreviations

AMAK Acceptable Margin Answer Key

CTS Consistency Test Suite

EOP Edge of Pavement

FHWA Federal Highway Administration

Ft Feet

NRC Noise Reduction Coefficient

TNM Traffic Noise Model

Updated: 07/23/2014
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