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Smoothness Specifications for Pavements Final Report (1997) / Chapter Skim
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Appendix D: Smoothness-Life Relationships and Sensitivity Plots
Pages 467-520

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From page 468...
... . +~+ _~n C~ o 4 ~ C-120 ISd punOqlsaM _` a ,= o ~_ cn o = tJ a)
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From page 469...
... Mode! ~ Multiple Linear Model Without Interaction Term A first attempt at finding a good-fit model for future smoothness involved performing multiple linear regressions without an initial smoothness-time interaction term.
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From page 470...
... Mode} 3 Multiple Non-T~inear Model A bird set of multiple non-linear regression models were developed for the projects. Observations of all of the time-series roughness data indicated that a multiple nonlinear regression mocle} of exponential form was appropriate for most sections.
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From page 471...
... I~3(14) NB Jefferson dc Blount Co.
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From page 472...
... (1) -models for various pavement projects tcondnued)
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From page 473...
... 1-75 SB Grant Co. Mounta~n ParkwaY EB Clark Co.
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From page 474...
... W126 NB ~ SB Fond Du Lac Co.
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From page 475...
... Wl 26 N8 Fond Du Lac Co.
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From page 476...
... 1-94 WB Dane Co. AC/KC 1989 3 0-5 No reasonable model developed.
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From page 477...
... x 1-65-3(20) SB Cullman Co.
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From page 478...
... (2) · I-17 SB Coconino Co.
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From page 479...
... Smoothness-life relationship for Arizona AC/AC pavements (roughness model approach; Trigger=175 in/mi)
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From page 480...
... | Figure D-8. Smoothness-life relationship for Georgia AC pavements (roughness model approach; Trigger=65 in/mi)
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From page 481...
... Smoothness-life relationship for Georgia AC/AC pavements (roughness model approach; Trigger=65 in/mi)
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From page 482...
... Smoothness-life relationship for Illinois AC/CRC pavements (roughness model approach; Trigger=150 in/mi)
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From page 483...
... Smoothness-life relationship for Kentucky PCC interstate pavements (roughness model approach; Trigger=2.751.
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From page 484...
... Smoothness-life relationship for Kentucky AC/PCC interstate pavements (roughness model approach; Trigger-2.75)
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From page 485...
... Smoothness-life relationship for Kentucky AC/AC interstate pavements (roughness model approach; Trigger=2.751.
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From page 486...
... Smoothness-life relationship for Kentucky AC/AC parkway pavements (roughness model approach; Trigger=2.751.
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From page 487...
... Smoothness-life relationship for Michigan AC pavements (roughness model approach; Trigger=150 in/mi)
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From page 488...
... Smoothness-life relationship for Minnesota AC pavements (roughness model approach; Trigger=150 in/mi)
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From page 489...
... Smoothness-life relationship for Minnesota AC/AC pavements (roughness model approach; Trigger=150 in/mi)
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From page 490...
... Smoothness-life relationship for Washington AC pavements (roughness model approach; Trigger=350 counts/mi)
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From page 491...
... Smoothness-life relationship for Washington AC/AC pavements (roughness model approach; Trigger=350 counts/mi)
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From page 492...
... Smoothness-life relationship for Wisconsin JRC pavements (roughness model approach; Trigger=2.751.
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From page 493...
... Smoothness-life relationship for Wisconsin AC on rigid base pavements (roughness model approach; Trigger=2.75)
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From page 494...
... Smoothness-life relationship for Wisconsin AC on flexible base pavements (roughness model approach; Trigger=2.751.
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From page 495...
... 4.5 5 Figure D-38. Smoothness-life relationship for Kentucky AC interstate pavements (pavement failure approach)
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From page 496...
... 4.5 5 Figure D-39. Smoo~ness-life relationship for Kentucky AC parkway pavements (pavement failure approach)
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From page 497...
... 5 Figure D-42. Smoothness-life relationship for Kentucky AC/PCC interstate pavements (pavement failure approach)
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From page 498...
... Figure D-44. Smoothness-life relationship for Wisconsin AC on flexible base pavements, all function classes, all traffic levels, post-1979 construction only (pavement failure approach)
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From page 499...
... -1-65-3(22) SB Cullman Co.
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From page 500...
... . o l 2 o 1 -10 0 D ID J ._ ID ~0 1 ooze Sm oother Rougher 80.00 ~ .
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From page 501...
... . 1 00.00 Sm oother Rougher 80.00 ~ __ _ .
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From page 502...
... . , vv.vv Sm oother 80.00 Rougher .^ ~_ lo cat 11 al ~5 AD o Do ~ -10 60.00 40.00 Regression Equation: y ~ -0.3409x an no .00 -80.00 -60.00 -40.00 -20.00 0.
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From page 503...
... Sensitivit~r of initial roughness for Georgia AC/AC pavements (roughness model approach; Trigger=65 in/mi)
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From page 504...
... . ~ oO.OO Sm oother .
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From page 505...
... o ~? :t s: o VJ D -5C _i 1 00.00 Rougher Sm oother _ 80.00- _ _ 60.00 40.00 - / 20.00 - - -< ~ ^^ ~ ~ .00 - 40 .00 - 30 .00 20 .00 ~ ;0 1 0 .00 20 00 30 00 40 00 50 /,'0.00 // -40.00- - Regression Equation: y ~ 1.9358x + 8E-16 -60.00 -80.00 -1 00.00 % Change in Initial Smoothness (based on target=4.0)
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From page 506...
... 4) ~0 o al D -50 ~D c 1~^ ^^ vv.vv Rougher Sm oother 80.00 60.00 40.00 20.00 1 1 1 1 t;S~ 1 -- 1 1 1 1 00 -40.00 -30.00 -20.00 .~.1 30 1 0.00 20.00 30.00 40.00 50 Z^,,~20.00 '/ -40.00 Regression Equation: ~ ye 1.9143x + lE-14 '' -60.00 -80.00 ~ vv.vv % Change in Initial Smoothness (based on target=4.1)
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From page 507...
... approach; Trigger=2.751. 1 00.00 Rougher Sm oother 80 00 60 00 - ~ .
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From page 508...
... ~ Figure D-63. Sensitivity of initial serviceability for Kentucky AC/AC parkway pavements (roughness model approach; Trigger=2.751.
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From page 509...
... o 2 -'o D 4) J c C 1 00.00 Sm oother Rougher 80.00 60.00 _ Regression Equation: 40.00 - ~ y ~ -0.4358x - 3E-15 ~4L._ 20.00 1 1 1 1 0,0 ~,; 1 1 1 1 .00 -80.00 -60.00 -40.00 -20.00 0.
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From page 510...
... cn al ~i 4, o ~ -10 D c 4) ~e 1 00.00 Sm oother Rougher 80.00 60.00 _ Regression Equation: 40.00 - - y~-0.4527x- 1E-14 ~_ 20.00 t I · I ~ ^~ Ir I I v .
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From page 511...
... 1 o" on v. Sm oother Rougher 80.00 · 60.00 40 00 Regression Equation: -go._ 20.00 I I HI i it_ I I I I .00 -80.00 -60.00 -40.00 -20.00 0.
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From page 512...
... . -0.00 Sm oother .~ 40.00 Rougher 30.00 20.00 10 00 .00 -40.00 -30.00 -20.00 -10.00 0.
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From page 513...
... Sensitivity of initial roughness for Washington AC/AC pavements (roughness model approach; Trigger=350 counts/mi)
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From page 514...
... Sensitivity of initial serviceability for Wisconsin JRC pavements (roughness model approach; Trigger=2.751.
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From page 515...
... Figure D-77. Sensitivity of initial serviceability for Wisconsin AC pavements (roughness model approach; Trigger=2.751.
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From page 516...
... Sensitivity of initial serviceability for Wisconsin AC on flexible base pavements (roughness model approach; Trigger=2.751. cc c~ ,~ 11 ~ ~ - 1 0 U ~ 0 D 1nn ~ , V V .v Rougher80.0 5D:~oother 60.0 40.0 20.0- ~ I I I I 0.0 - r I I I I 0.0 -80.0 -60.0 -40.0 -20.0 ', 0 20.0 40.0 60.0 80.0 1 0 -20.0 -40.0 -6 0 0 - R egression E qu a tion: .
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From page 517...
... ~ O · - 11 . C; ~ ~ ~ -1 0 an a ID 100.0 Rougher Sm oother 80.0 60.0 40.0 20.0 1 1 1 1 44_ _.
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From page 518...
... Sensitivity of initial serviceability for Kentucky AC parkway pavements (pavement faiTure approach; Trigger=2.751. ce 00 ,~ 11 ~_ s: b4 ',= ~ -1 0 u ~ O cc ~ nr~ ~ ~ V w.v Rougher Sm oother n 60.0 40.0 20.0 - ~ 1 1 1 1 0.0~ ~1 1 1 1 0.0 -8 0.0 -6 0.0 -4 0.0 -2 0.0 ~ 0 2 0.0 4 0.0 6 0.0 8 0.0 1 0 -2~.0 -40.0 - Regression Equation: -6 0.0 - y = 1.743 7x - 1 E -1 4 -8 0.0 nn 1 vv.v % Change in Serviceability (based on target RI=4.0)
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From page 519...
... Figure D-85. Sensitivity of initial serviceability for Kentucky AC/AC parkway pavements (pavement failure approach; Trigger=2.75~.
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From page 520...
... Sensitivity of initial serviceability for Wisconsin AC on flexible base pavements (pavement failure approach; Trigger=2.751.
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Key Terms

  • pavement failure
  • failure approach
  • pavement smoothness
  • regression models
  • interaction term

  • base pavements
  • interstate pavements
  • multiple linear
  • roughness model
  • pavement faiture

  • parkway pavements
  • model approach
  • faiture approach
  • linear model
  • initial pavement

  • rigid base
  • kentucky pcc
  • flexible base
  • wisconsin jrc
  • pcc interstate

  • trend representative
  • exponential form
  • models including
  • pcc parkway
  • pavement projects

  • nonlinear regression
  • smoothness involved
  • multiple nonlinear
  • roughness mode
  • exponent coefficients


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