Explanation of Table 1 and Table 2 Calculations

Dynaflect Analysis Graphs

1. To derive the damage in inches of AC on TABLE 1, for the longitudinal trench along 90 N Bascom Ave.

  • Always use the 80% STATISTICAL ANALYSIS AS TESTED.
  • Trench 80% = 25
  • Baseline 80% = 13
  • % Reduction = 48% = {(25-13)/25}*100
  • Go to Caltrans' Flexible Pavement Rehabilitation Manual
  • Go to page 6-2 Table 2 Column A for % reduction of 48%, corresponding to a 0.59 ft. GE requirement
  • Assume Gf = 1.9 for this study
  • Tac = 3.73 in. = 12*(GE/Gf) = 12 in./ft.*(0.59 ft/1.9)

2. Zone of Influence (ZOI) for Country Club Table 2

  • For Country Club, identify the distance in ft from the center up to where the Y axis deflection becomes constant. Use 6 ft. on the left and 6 ft. on the right to obtain a 12 ft. ZOI.

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