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Publication Number: FHWA-HRT-12-068
Date: December 2012

 

Curl and Warp Analysis of The LTPP SPS-2 Site in Arizona

APPENDIX C. ROUGHNESS VALUES

This appendix lists left IRI, right IRI, Mean Roughness Index (MRI), HRI, and RN values for each visit of each section. The roughness values are the average for five repeat runs. The five runs were selected from a group of as many as nine by automated comparison of profiles, as described in appendix B. Values of standard deviation are also provided for left and right IRI to reveal cases of high variability among the five measurements. However, the screening procedure used to select the five repeats usually helped reduce the level of scatter.

The discussion of roughness in the main report emphasizes the left and right IRI. Nevertheless, the other indexes provide useful additional information. MRI is the average of the left and right IRI values. HRI is calculated by converting the IRI filter into a half-car model.(12) This is done by collapsing the left and right profile into a single profile in which each point is the average of the corresponding left and right elevation. The IRI filter is then applied to the resulting signal. HRI is similar to IRI except that side-to-side deviations in the profile are eliminated. The result is that the HRI value for a pair of profiles will always be lower than the corresponding MRI value. Comparing HRI and MRI values provides a crude indication of the significance of roll (i.e., side-by-side variation in profile) to the overall roughness. When HRI is low compared to MRI, roll is significant. This is common among asphalt pavements.(13) Certain types of pavement distress, such as longitudinal cracking, may also cause significant differences between HRI and MRI.

Figure 25 compares HRI to MRI for the profile measurements on PCC sections. This includes 1,585 pairs of roughness values and excludes AC sections 0260 and 0261. The figure shows a best-fit line with a zero intercept and a line of equality. The slope of the line is 0.914. A typical range for concrete pavement is 0.90–0.95. A better linear fit was found without forcing a zero intercept. A simple linear fit produced a slope of about 0.979 and an intercept of about -6.9 inches/mi.

The vertical scale shows Half-car Roughness Index (HRI) from 0 to 200 inches/mi. The horizontal scale shows Mean Roughness Index (MRI) from 0 to 200 inches/mi. The plot shows 1,585 points. The values from the HRI column of table 30 are plotted versus the values in the MRI column of table 30 for all test sections except 0260 and 0261. The plot includes a diagonal line of equality, and all of the plotted points fall below (although near) it. The figure also includes a line for a least-squares fit, where the line was forced to pass through the origin. The equation for the line is HRI equals 0.906 times MRI. The standard error of estimate for the equation is 3.84 inches/mi, and no data point differs from the prediction by more than 11 inches/mi.
© ADOT
Figure 25 . Graph. Comparison of HRI to MRI.

 

RN has shown a closer relationship to road-user opinions than other indexes.(14) As such, it may help distinguish the segments from each other by ride quality. Further, the effect on RN may help quantify the impact of distress on ride when the roughness of a section is dominated by a particular type of distress. In particular, a very low RN value coupled with moderate IRI values indicates a high level of short-wavelength roughness and potential sensitivity to narrow dips and measurement errors caused by coarse surface texture.

Table 30 provides the roughness values. The table also lists the date of each measurement and the time in years since the site was opened to traffic. Figure 26 through figure 46 show left and right IRI versus time in years for all 21 test sections. As before, years is defined as the number of years between the measurement date and the date the site was opened to traffic (1-Oct-1993).

Table 30. Roughness Values.

Section Date Years Left IRI (inches/mi) Right IRI (inches/mi) MRI (inches/mi) HRI (inches/mi) RN
Average SD Average SD
0213 25-Jan-94 0.32 91 1.7 97 1.5 94 86 3.63
5-Mar-95 1.42 72 1.0 83 1.7 78 69 3.75
27-Jan-97 3.32 103 0.9 110 1.1 107 101 3.53
4-Dec-97 4.18 104 2.6 117 2.0 111 105 3.50
8-Dec-98 5.19 108 1.1 117 1.5 112 107 3.46
15-Nov-99 6.12 118 0.7 131 1.0 124 118 3.33
30-Nov-00 7.16 107 1.1 119 1.4 113 106 3.42
8-Nov-01 8.10 118 1.2 133 1.5 125 119 3.29
30-Oct-02 9.08 124 0.6 119 2.4 122 116 3.36
4-Feb-04 10.34 110 1.4 105 3.3 108 101 3.48
12-Dec-04 11.20 103 1.2 117 3.2 110 103 3.32
11-Aug-06 12.86 139 1.0 177 5.5 158 149 2.39
30-Dec-07 14.25 114 0.8 147 6.9 131 121 2.56
20-Sep-08 14.97 127 1.0 166 6.8 147 136 2.56
25-Jan-10 16.32 111 1.3 198 3.5 155 140 2.00
0214 25-Jan-94 0.32 85 1.9 80 1.9 83 80 3.65
5-Mar-95 1.42 55 0.5 59 1.7 57 50 3.78
27-Jan-97 3.32 76 3.2 64 2.6 70 65 3.80
4-Dec-97 4.18 70 2.6 69 1.9 70 65 3.79
8-Dec-98 5.19 67 3.3 68 0.9 68 62 3.80
15-Nov-99 6.12 85 2.0 71 1.8 78 71 3.70
30-Nov-00 7.16 81 0.8 71 1.2 76 70 3.68
8-Nov-01 8.10 79 2.5 79 0.5 79 73 3.62
30-Oct-02 9.08 94 3.4 78 1.0 86 78 3.47
4-Feb-04 10.34 101 3.1 87 1.4 94 85 3.38
12-Dec-04 11.20 80 2.9 83 1.0 81 75 3.46
13-Aug-06 12.87 81 1.9 83 0.8 82 75 3.44
30-Dec-07 14.25 102 1.3 93 1.8 97 90 3.31
20-Sep-08 14.97 96 3.0 85 1.7 91 84 3.39
25-Jan-10 16.32 100 2.0 99 0.9 100 94 3.27
0215 25-Jan-94 0.32 89 0.8 91 1.4 90 80 3.66
5-Mar-95 1.42 82 0.9 97 3.2 89 80 3.61
27-Jan-97 3.32 98 0.7 102 1.4 100 91 3.60
4-Dec-97 4.18 100 3.6 105 2.2 103 94 3.52
15-Jan-98 4.29 89 0.8 101 2.3 95 86 3.61
15-Jan-98 4.29 87 0.7 103 0.9 95 87 3.61
13-Apr-98 4.53 92 0.9 99 1.7 96 86 3.60
13-Apr-98 4.53 91 1.2 98 1.6 95 85 3.60
9-Jul-98 4.77 96 1.7 107 2.3 101 91 3.54
9-Jul-98 4.77 93 0.7 105 1.9 99 88 3.54
30-Sep-98 5.00 105 1.1 114 2.3 109 100 3.47
30-Sep-98 5.00 99 2.3 112 1.6 105 96 3.48
8-Dec-98 5.19 109 1.2 110 2.1 109 101 3.46
15-Nov-99 6.12 114 1.9 123 1.5 118 110 3.41
30-Nov-00 7.16 111 0.5 119 1.4 115 106 3.44
8-Nov-01 8.10 121 0.5 126 0.7 124 116 3.34
9-Dec-01 8.19 125 0.3 129 0.6 127 120 3.32
9-Dec-01 8.19 116 0.9 120 0.6 118 111 3.42
24-Jan-02 8.31 122 1.2 127 0.9 124 117 3.34
24-Jan-02 8.31 112 0.3 120 1.1 116 108 3.43
15-Mar-02 8.45 130 1.2 133 1.3 132 125 3.27
15-Mar-02 8.45 117 0.7 122 2.8 119 112 3.40
9-Oct-02 9.02 140 1.3 132 3.0 136 130 3.24
9-Oct-02 9.02 121 1.4 123 1.4 122 116 3.35
30-Oct-02 9.08 131 6.1 122 1.1 127 119 3.33
20-Dec-02 9.22 137 0.8 131 1.3 134 128 3.25
20-Dec-02 9.22 125 4.4 120 1.6 123 115 3.37
7-Mar-03 9.43 124 1.5 119 2.1 122 115 3.35
7-Mar-03 9.43 112 0.7 112 2.0 112 105 3.45
25-Jul-03 9.81 121 0.3 130 1.2 126 119 3.32
25-Jul-03 9.81 119 1.0 126 1.0 122 115 3.33
24-Nov-03 10.15 124 1.7 127 0.9 125 119 3.29
24-Nov-03 10.15 117 1.2 120 2.2 118 112 3.39
14-Dec-03 10.20 119 0.8 126 1.0 122 115 3.32
14-Dec-03 10.20 115 1.4 119 0.6 117 110 3.39
4-Feb-04 10.34 130 3.3 118 2.4 124 116 3.35
22-Apr-04 10.56 133 0.4 139 2.1 136 129 3.22
22-Apr-04 10.56 118 1.1 121 1.6 120 113 3.36
15-Jul-04 10.79 132 1.3 142 1.7 137 131 3.21
15-Jul-04 10.79 129 0.3 135 0.9 132 126 3.24
9-Sep-04 10.94 135 0.1 145 0.7 140 134 3.18
9-Sep-04 10.94 132 0.7 142 1.6 137 131 3.19
0215 12-Dec-04 11.20 108 1.9 120 1.3 114 107 3.39
13-Aug-06 12.87 135 0.6 141 0.9 138 133 3.18
30-Dec-07 14.25 122 0.5 123 1.0 123 116 3.32
20-Sep-08 14.97 134 0.9 142 1.6 138 132 3.18
25-Jan-10 16.32 124 1.5 129 1.0 126 119 3.28
0216 25-Jan-94 0.32 90 2.4 87 2.3 89 81 3.57
5-Mar-95 1.42 83 1.5 89 1.8 86 75 3.54
27-Jan-97 3.32 87 3.7 84 0.8 86 76 3.65
4-Dec-97 4.18 86 0.7 85 2.5 85 76 3.61
8-Dec-98 5.19 88 0.9 87 1.8 88 78 3.59
15-Nov-99 6.12 93 2.7 86 0.6 89 79 3.63
30-Nov-00 7.16 85 1.3 88 0.7 87 78 3.65
8-Nov-01 8.10 85 1.2 91 1.3 88 78 3.62
30-Oct-02 9.08 98 3.9 92 1.3 95 80 3.52
4-Feb-04 10.34 99 3.2 99 1.6 99 84 3.47
12-Dec-04 11.20 88 1.6 99 2.7 94 85 3.50
13-Aug-06 12.87 88 1.4 99 1.5 94 85 3.49
30-Dec-07 14.25 98 1.6 101 1.5 99 88 3.44
20-Sep-08 14.97 100 2.8 97 0.4 99 85 3.47
25-Jan-10 16.32 93 1.0 105 1.8 99 90 3.42
0217 25-Jan-94 0.32 93 0.5 82 1.1 87 79 3.59
5-Mar-95 1.42 61 1.5 70 2.1 65 56 3.81
27-Jan-97 3.32 83 0.7 78 1.3 80 71 3.76
4-Dec-97 4.18 79 3.7 80 2.6 79 72 3.78
8-Dec-98 5.19 82 3.2 78 2.8 80 72 3.76
15-Nov-99 6.12 93 2.2 81 0.9 87 77 3.73
30-Nov-00 7.16 85 1.6 75 0.6 80 70 3.81
8-Nov-01 8.10 87 2.2 77 1.7 82 74 3.78
30-Oct-02 9.08 87 1.5 74 0.8 80 70 3.73
4-Feb-04 10.34 88 3.3 66 1.4 77 65 3.79
12-Dec-04 11.20 84 4.3 74 2.0 79 69 3.75
11-Aug-06 12.86 105 1.7 89 2.1 97 89 3.62
30-Dec-07 14.25 80 2.5 74 1.6 77 66 3.60
20-Sep-08 14.97 110 3.5 82 1.9 96 86 3.61
25-Jan-10 16.32 81 1.6 75 3.0 78 68 3.26
0218 25-Jan-94 0.32 92 3.7 85 1.9 88 83 3.54
5-Mar-95 1.42 65 1.3 59 1.6 62 53 3.74
27-Jan-97 3.32 74 1.5 56 0.4 65 58 3.81
4-Dec-97 4.18 73 1.4 61 2.0 67 60 3.77
8-Dec-98 5.19 74 0.9 60 1.2 67 60 3.77
15-Nov-99 6.12 79 1.9 65 0.7 72 65 3.77
30-Nov-00 7.16 72 1.1 60 0.7 66 58 3.82
8-Nov-01 8.10 71 1.0 62 0.6 67 59 3.82
30-Oct-02 9.08 85 4.7 56 0.9 70 63 3.75
4-Feb-04 10.34 82 3.2 56 1.3 69 61 3.76
12-Dec-04 11.20 72 1.4 64 2.1 68 59 3.76
13-Aug-06 12.87 77 1.1 71 0.8 74 66 3.70
30-Dec-07 14.25 83 2.5 68 1.7 76 67 3.70
20-Sep-08 14.97 80 1.2 76 0.8 78 69 3.66
25-Jan-10 16.32 78 1.4 70 1.3 74 65 3.68
0219 25-Jan-94 0.32 78 1.5 90 2.1 84 75 3.60
5-Mar-95 1.42 67 1.1 84 1.4 76 66 3.63
27-Jan-97 3.32 77 1.6 95 1.3 86 78 3.68
4-Dec-97 4.18 88 3.9 97 1.6 92 84 3.63
8-Dec-98 5.19 84 3.8 102 1.6 93 86 3.63
15-Nov-99 6.12 89 2.5 105 2.3 97 90 3.59
30-Nov-00 7.16 79 0.4 101 1.2 90 82 3.67
8-Nov-01 8.10 87 1.8 110 3.2 99 92 3.59
30-Oct-02 9.08 100 1.6 102 1.6 101 92 3.53
4-Feb-04 10.34 101 4.4 98 1.6 100 91 3.52
12-Dec-04 11.20 91 2.8 111 2.0 101 94 3.54
13-Aug-06 12.87 117 1.5 136 1.4 127 121 3.24
30-Dec-07 14.25 90 1.2 102 1.0 96 89 3.54
20-Sep-08 14.97 118 2.4 135 3.3 126 121 3.29
25-Jan-10 16.32 98 2.7 114 1.5 106 99 3.42
0220 25-Jan-94 0.32 77 2.1 80 1.8 78 74 3.70
5-Mar-95 1.42 66 1.4 72 1.2 69 62 3.74
27-Jan-97 3.32 66 3.6 72 1.7 69 64 3.87
4-Dec-97 4.18 70 1.8 73 1.6 71 67 3.84
8-Dec-98 5.19 69 0.6 73 1.4 71 67 3.86
15-Nov-99 6.12 69 1.0 77 1.4 73 68 3.85
30-Nov-00 7.16 77 4.7 69 1.3 73 68 3.86
8-Nov-01 8.10 68 1.0 78 0.5 73 67 3.86
30-Oct-02 9.08 82 2.1 69 1.2 76 71 3.77
4-Feb-04 10.34 89 4.5 69 0.5 79 73 3.75
12-Dec-04 11.20 73 1.6 80 1.9 77 71 3.75
13-Aug-06 12.87 75 1.8 82 1.0 79 73 3.71
30-Dec-07 14.25 86 1.9 85 1.6 85 80 3.63
20-Sep-08 14.97 91 2.2 79 0.8 85 80 3.63
25-Jan-10 16.32 80 2.4 83 1.7 82 76 3.65
0221 25-Jan-94 0.32 73 1.9 73 1.7 73 65 3.72
5-Mar-95 1.42 56 0.7 60 1.4 58 48 3.82
27-Jan-97 3.32 78 1.6 78 0.4 78 71 3.76
4-Dec-97 4.18 82 3.3 84 2.3 83 77 3.59
8-Dec-98 5.19 85 2.8 82 1.7 83 77 3.66
15-Nov-99 6.12 85 1.8 88 1.0 86 79 3.61
30-Nov-00 7.16 76 1.2 82 1.6 79 71 3.62
8-Nov-01 8.10 84 2.0 85 0.9 85 79 3.63
30-Oct-02 9.08 90 6.3 77 2.4 84 77 3.46
4-Feb-04 10.34 76 1.3 74 3.8 75 67 3.63
12-Dec-04 11.20 79 2.9 80 1.3 79 72 3.61
11-Aug-06 12.86 100 0.9 99 0.9 100 94 3.43
30-Dec-07 14.25 81 1.3 81 1.6 81 74 3.52
20-Sep-08 14.97 96 1.3 94 1.8 95 88 3.43
25-Jan-10 16.32 82 1.3 84 1.5 83 76 3.40
0222 25-Jan-94 0.32 72 1.1 71 1.7 72 65 3.74
5-Mar-95 1.42 58 1.4 56 1.1 57 47 3.82
27-Jan-97 3.32 72 0.9 55 0.7 64 55 3.85
4-Dec-97 4.18 64 2.8 63 1.8 63 55 3.82
8-Dec-98 5.19 66 0.4 63 1.3 64 56 3.80
15-Nov-99 6.12 79 2.5 64 0.8 72 64 3.78
30-Nov-00 7.16 77 1.9 60 0.4 69 61 3.83
8-Nov-01 8.10 68 1.6 64 0.8 66 57 3.84
30-Oct-02 9.08 88 4.3 57 0.7 73 64 3.73
4-Feb-04 10.34 87 6.3 58 1.1 72 64 3.72
12-Dec-04 11.20 69 3.1 66 0.9 67 58 3.77
13-Aug-06 12.87 72 0.8 73 1.7 73 63 3.75
30-Dec-07 14.25 91 2.3 69 0.9 80 73 3.67
20-Sep-08 14.97 78 2.1 75 1.5 76 69 3.69
25-Jan-10 16.32 76 1.7 70 1.7 73 64 3.72
0223 25-Jan-94 0.32 73 1.5 81 3.1 77 66 3.70
5-Mar-95 1.42 69 0.9 79 1.3 74 63 3.68
27-Jan-97 3.32 80 1.5 85 1.2 82 71 3.69
4-Dec-97 4.18 83 0.7 88 1.4 85 76 3.69
8-Dec-98 5.19 89 2.2 92 1.5 90 82 3.64
15-Nov-99 6.12 89 1.7 95 1.4 92 84 3.62
30-Nov-00 7.16 82 1.3 94 0.8 88 79 3.66
8-Nov-01 8.10 87 1.8 99 1.1 93 85 3.61
30-Oct-02 9.08 108 1.3 88 0.9 98 90 3.56
4-Feb-04 10.34 117 5.8 86 1.1 101 93 3.52
12-Dec-04 11.20 91 2.5 98 1.3 95 87 3.54
13-Aug-06 12.87 111 1.5 120 1.3 116 109 3.37
30-Dec-07 14.25 97 1.6 96 2.2 96 90 3.51
20-Sep-08 14.97 122 2.5 118 0.8 120 115 3.35
25-Jan-10 16.32 101 2.9 102 1.2 102 95 3.47
0224 25-Jan-94 0.32 65 0.5 67 1.7 66 61 3.80
5-Mar-95 1.42 60 1.8 71 3.6 66 60 3.74
27-Jan-97 3.32 73 3.2 69 0.8 71 66 3.84
4-Dec-97 4.18 64 5.5 71 2.3 67 61 3.84
8-Dec-98 5.19 64 5.5 75 3.3 69 64 3.83
15-Nov-99 6.12 80 5.2 71 1.5 76 71 3.83
30-Nov-00 7.16 83 4.3 69 0.4 76 72 3.84
8-Nov-01 8.10 66 3.3 77 0.8 72 66 3.82
30-Oct-02 9.08 84 2.7 72 0.9 78 72 3.77
4-Feb-04 10.34 114 2.1 71 1.0 93 86 3.65
12-Dec-04 11.20 70 5.0 79 1.7 75 69 3.78
13-Aug-06 12.87 78 3.6 74 1.1 76 72 3.78
30-Dec-07 14.25 79 1.7 77 0.9 78 74 3.75
20-Sep-08 14.97 89 6.6 78 1.2 83 78 3.72
25-Jan-10 16.32 85 5.2 84 1.7 84 80 3.70
0260 25-Jan-94 0.32 57 0.3 69 1.8 63 50 3.89
5-Mar-95 1.42 62 0.5 75 2.8 68 54 3.75
27-Jan-97 3.32 64 0.9 70 2.6 67 51 3.84
4-Dec-97 4.18 62 1.5 70 1.3 66 52 3.73
8-Dec-98 5.19 61 1.8 69 1.6 65 50 3.77
15-Nov-99 6.12 63 1.4 68 1.4 66 51 3.84
30-Nov-00 7.16 62 0.8 68 0.8 65 51 3.86
8-Nov-01 8.10 62 0.5 70 1.4 66 51 3.82
30-Oct-02 9.08 64 1.2 60 0.7 62 48 3.85
4-Feb-04 10.34 65 1.6 60 2.1 63 49 3.82
12-Dec-04 11.20 66 1.9 69 0.6 67 52 3.64
13-Aug-06 12.87 88 2.7 70 2.4 79 61 3.36
30-Dec-07 14.25 105 6.8 66 2.2 86 69 2.76
20-Sep-08 14.97 111 3.8 72 2.0 92 74 2.78
25-Jan-10 16.32 121 3.1 78 1.3 99 78 2.50
0261 25-Jan-94 0.32 40 0.4 53 1.5 47 39 4.05
5-Mar-95 1.42 38 0.7 60 1.8 49 40 3.99
27-Jan-97 3.32 40 0.5 60 1.4 50 40 3.85
4-Dec-97 4.18 41 0.4 58 2.2 50 40 3.89
8-Dec-98 5.19 39 0.9 60 1.0 50 40 3.84
15-Nov-99 6.12 39 1.1 59 1.3 49 39 3.87
30-Nov-00 7.16 38 0.4 59 0.8 48 40 3.82
8-Nov-01 8.10 40 0.5 60 0.7 50 40 3.80
30-Oct-02 9.08 38 0.6 55 1.7 46 38 4.02
4-Feb-04 10.34 39 0.3 55 1.3 47 37 3.92
12-Dec-04 11.20 42 2.5 62 1.0 52 42 3.86
13-Aug-06 12.87 44 1.0 66 1.3 55 44 3.76
30-Dec-07 14.25 44 0.6 72 3.1 58 48 3.51
20-Sep-08 14.97 47 1.0 82 3.4 65 52 3.32
25-Jan-10 16.32 57 0.8 111 2.5 84 69 2.83
0262 25-Jan-94 0.32 72 1.0 67 1.3 70 62 3.76
5-Mar-95 1.42 67 0.6 70 1.3 69 59 3.71
27-Jan-97 3.32 112 1.0 110 1.3 111 105 3.44
4-Dec-97 4.18 122 1.3 118 1.4 120 115 3.35
8-Dec-98 5.19 137 1.3 138 0.4 137 132 3.14
15-Nov-99 6.12 144 0.6 150 1.1 147 142 3.08
30-Nov-00 7.16 139 1.4 155 1.1 147 141 3.02
8-Nov-01 8.10 158 0.3 175 0.5 166 161 2.84
30-Oct-02 9.08 155 0.8 174 1.4 165 156 2.79
4-Feb-04 10.34 158 0.8 171 1.5 164 154 2.73
12-Dec-04 11.20 163 2.3 193 1.8 178 170 2.60
11-Aug-06 12.86 195 0.8 225 0.8 210 201 2.33
30-Dec-07 14.25 186 2.1 234 4.5 210 199 1.80
20-Sep-08 14.97 204 0.6 249 3.9 227 215 1.76
25-Jan-10 16.32 195 1.0 229 3.8 212 202 2.13
0263 25-Jan-94 0.32 68 0.8 70 1.8 69 61 3.67
5-Mar-95 1.42 59 1.9 68 1.4 64 53 3.65
27-Jan-97 3.32 80 0.7 73 0.7 77 69 3.76
4-Dec-97 4.18 81 1.5 79 2.1 80 72 3.67
8-Dec-98 5.19 82 1.2 82 2.3 82 74 3.67
15-Nov-99 6.12 90 0.3 81 1.3 85 77 3.69
30-Nov-00 7.16 82 1.7 78 1.6 80 72 3.75
8-Nov-01 8.10 86 2.4 83 0.3 85 77 3.69
30-Oct-02 9.08 92 2.6 83 1.4 88 78 3.58
4-Feb-04 10.34 90 1.7 83 1.8 87 75 3.58
12-Dec-04 11.20 84 3.9 80 1.9 82 73 3.62
11-Aug-06 12.86 104 1.4 95 2.0 100 92 3.50
30-Dec-07 14.25 92 2.1 81 1.8 87 78 3.58
20-Sep-08 14.97 103 2.4 93 1.9 98 89 3.50
25-Jan-10 16.32 88 1.4 79 1.4 83 75 3.59
0264 25-Jan-94 0.32 105 1.9 113 2.4 109 93 3.37
5-Mar-95 1.42 93 1.5 117 2.2 105 89 3.41
27-Jan-97 3.32 113 1.4 122 2.6 118 98 3.34
4-Dec-97 4.18 115 2.4 126 1.1 120 103 3.32
8-Dec-98 5.19 114 2.1 133 1.7 123 106 3.30
15-Nov-99 6.12 121 1.8 130 2.5 126 108 3.27
30-Nov-00 7.16 119 0.7 129 2.7 124 107 3.28
8-Nov-01 8.10 119 1.6 140 3.2 129 113 3.26
30-Oct-02 9.08 122 4.7 125 1.0 123 108 3.26
4-Feb-04 10.34 121 5.3 123 3.5 122 107 3.26
12-Dec-04 11.20 123 4.7 135 4.4 129 114 3.19
13-Aug-06 12.87 140 1.5 141 0.5 141 126 3.10
30-Dec-07 14.25 135 1.6 132 2.7 134 119 3.12
20-Sep-08 14.97 150 1.7 148 1.5 149 135 3.04
25-Jan-10 16.32 128 3.6 144 3.5 136 122 3.13
0265 25-Jan-94 0.32 84 2.1 89 2.3 86 72 3.55
5-Mar-95 1.42 81 2.0 96 2.1 89 73 3.50
27-Jan-97 3.32 96 1.9 106 0.7 101 88 3.44
4-Dec-97 4.18 99 2.6 115 3.2 107 94 3.37
8-Dec-98 5.19 107 2.0 123 2.1 115 104 3.27
15-Nov-99 6.12 109 1.4 128 1.0 118 106 3.29
30-Nov-00 7.16 107 0.7 133 0.7 120 109 3.21
8-Nov-01 8.10 118 1.6 146 0.5 132 122 3.11
30-Oct-02 9.08 114 2.3 141 0.8 127 114 3.12
4-Feb-04 10.34 112 2.1 145 3.5 129 116 3.05
12-Dec-04 11.20 114 2.0 156 3.8 135 125 2.97
13-Aug-06 12.87 136 1.4 168 1.4 152 143 2.90
30-Dec-07 14.25 123 1.0 168 1.4 146 134 2.82
20-Sep-08 14.97 143 1.6 182 1.5 163 154 2.79
25-Jan-10 16.32 133 1.1 180 0.6 156 145 2.75
0266 25-Jan-94 0.32 82 1.2 93 1.8 87 78 3.54
5-Mar-95 1.42 79 1.1 95 2.4 87 78 3.57
27-Jan-97 3.32 87 1.5 94 0.4 90 79 3.65
4-Dec-97 4.18 88 1.5 100 3.2 94 86 3.63
8-Dec-98 5.19 91 1.6 102 0.5 97 89 3.60
15-Nov-99 6.12 95 3.5 104 0.8 99 89 3.58
30-Nov-00 7.16 89 0.7 101 0.7 95 87 3.62
8-Nov-01 8.10 99 1.1 110 1.0 105 97 3.53
30-Oct-02 9.08 118 5.2 108 0.9 113 104 3.39
4-Feb-04 10.34 104 1.0 103 0.9 103 93 3.44
12-Dec-04 11.20 98 1.9 109 2.1 103 96 3.47
13-Aug-06 12.87 122 3.5 125 1.9 123 116 3.28
30-Dec-07 14.25 114 1.6 109 1.1 111 102 3.35
20-Sep-08 14.97 133 0.6 129 0.8 131 123 3.21
25-Jan-10 16.32 106 1.7 112 1.1 109 102 3.39
0267 25-Jan-94 0.32 80 1.7 106 2.0 93 78 3.39
5-Mar-95 1.42 79 0.9 112 4.2 95 79 3.38
27-Jan-97 3.32 75 2.2 106 1.4 90 75 3.61
4-Dec-97 4.18 83 5.4 113 3.0 98 83 3.52
8-Dec-98 5.19 82 1.8 115 1.7 99 84 3.49
15-Nov-99 6.12 78 0.8 114 1.9 96 83 3.57
30-Nov-00 7.16 76 0.3 111 1.0 94 82 3.56
8-Nov-01 8.10 86 2.7 120 1.8 103 90 3.44
30-Oct-02 9.08 92 6.2 110 2.7 101 86 3.44
4-Feb-04 10.34 86 1.0 104 1.1 95 82 3.45
12-Dec-04 11.20 88 1.6 114 1.4 101 89 3.40
13-Aug-06 12.87 98 1.8 110 1.9 104 92 3.29
30-Dec-07 14.25 81 1.2 84 1.2 82 71 3.53
20-Sep-08 14.97 92 1.5 101 1.5 97 87 3.42
25-Jan-10 16.32 77 2.0 91 1.7 84 74 3.45
0268 25-Jan-94 0.32 85 2.0 94 0.5 89 73 3.39
5-Mar-95 1.42 80 1.5 96 3.7 88 72 3.36
27-Jan-97 3.32 91 1.2 92 1.2 91 75 3.53
4-Dec-97 4.18 89 3.9 95 2.5 92 76 3.48
8-Dec-98 5.19 93 3.2 98 3.0 95 79 3.45
15-Nov-99 6.12 94 1.6 98 1.6 96 79 3.52
30-Nov-00 7.16 92 0.5 97 1.9 95 78 3.48
8-Nov-01 8.10 97 1.1 104 2.1 101 84 3.42
30-Oct-02 9.08 102 4.7 96 2.8 99 84 3.40
4-Feb-04 10.34 99 0.6 91 1.9 95 80 3.39
12-Dec-04 11.20 97 3.5 98 2.1 97 80 3.35
13-Aug-06 12.87 116 0.6 112 2.1 114 100 3.26
30-Dec-07 14.25 99 2.2 94 1.3 97 80 3.40
20-Sep-08 14.97 106 3.2 107 2.4 107 93 3.32
25-Jan-10 16.32 94 2.1 100 0.8 97 80 3.33

SD = Standard deviation

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 90.54), (1.42, 72.48), (3.32, 103.17), (4.18, 103.79), (5.19, 108.25), (6.12, 117.77), (7.16, 107.27), (8.10, 117.94), (9.08, 123.96), (10.34, 110.06), (11.20, 102.72), (12.86, 139.40), (14.25, 113.92), (14.97, 127.43), and (16.32, 110.92). For the right IRI, the plotted values (time, IRI) are (0.32, 97.06), (1.42, 83.29), (3.32, 110.05), (4.18, 117.26), (5.19, 116.62), (6.12, 130.57), (7.16, 119.31), (8.10, 132.59), (9.08, 119.08), (10.34, 105.00), (11.20, 117.34), (12.86, 177.02), (14.25, 147.33), (14.97, 165.99), and (16.32, 198.33).
© ADOT
Figure 26. Graph. IRI Progression for Section 0213.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 85.40), (1.42, 55.27), (3.32, 76.23), (4.18, 70.18), (5.19, 67.04), (6.12, 85.07), (7.16, 80.77), (8.10, 78.80), (9.08, 94.50), (10.34, 100.80), (11.20, 79.80), (12.87, 80.71), (14.25, 101.57), (14.97, 96.15), and (16.32, 100.18). For the right IRI, the plotted values (time, IRI) are (0.32, 80.28), (1.42, 59.42), (3.32, 64.10), (4.18, 69.25), (5.19, 68.06), (6.12, 70.83), (7.16, 71.20), (8.10, 79.36), (9.08, 77.97), (10.34, 86.90), (11.20, 83.12), (12.87, 82.51), (14.25, 93.28), (14.97, 85.06), and (16.32, 98.82).
© ADOT
Figure 27. Graph. IRI Progression for Section 0214.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 47 points for left IRI and 47 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 89.49), (1.42, 82.06), (3.32, 97.50), (4.18, 100.33), (4.29, 88.65), (4.29, 87.11), (4.53, 92.31), (4.53, 91.47), (4.77, 95.95), (4.77, 92.58), (5.00, 104.52), (5.00, 98.97), (5.19, 109.43), (6.12, 113.82), (7.16, 110.55), (8.10, 120.84), (8.19, 124.87), (8.19, 115.61), (8.31, 121.85), (8.31, 111.61), (8.45, 130.21), (8.45, 116.62), (9.02, 139.68), (9.02, 120.66), (9.08, 130.76), (9.22, 137.48), (9.22, 125.11), (9.43, 124.43), (9.43, 112.46), (9.81, 121.07), (9.81, 118.81), (10.15, 123.55), (10.15, 116.92), (10.20, 119.05), (10.20, 114.87), (10.34, 130.38), (10.56, 132.62), (10.56, 117.75), (10.79, 131.68), (10.79, 129.27), (10.94, 134.87), (10.94, 132.48), (11.20, 108.11), (12.87, 135.38), (14.25, 122.38), (14.97, 133.68), and (16.32, 123.57). For the right IRI, the plotted values (time, IRI) are (0.32, 91.18), (1.42, 96.79), (3.32, 102.49), (4.18, 104.93), (4.29, 100.68), (4.29, 102.91), (4.53, 98.73), (4.53, 98.46), (4.77, 106.98), (4.77, 104.74), (5.00, 113.70), (5.00, 111.82), (5.19, 109.57), (6.12, 122.53), (7.16, 118.56), (8.10, 126.26), (8.19, 128.81), (8.19, 120.32), (8.31, 126.69), (8.31, 120.03), (8.45, 133.37), (8.45, 121.57), (9.02, 132.27), (9.02, 123.42), (9.08, 122.38), (9.22, 130.59), (9.22, 119.93), (9.43, 118.87), (9.43, 111.73), (9.81, 130.39), (9.81, 125.62), (10.15, 127.13), (10.15, 119.78), (10.20, 125.72), (10.20, 118.72), (10.34, 117.88), (10.56, 138.83), (10.56, 121.49), (10.79, 141.80), (10.79, 135.20), (10.94, 145.04), (10.94, 142.24), (11.20, 120.17), (12.87, 141.37), (14.25, 123.30), (14.97, 142.11), and (16.32, 129.01).
© ADOT
Figure 28. Graph. IRI Progression for Section 0215.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 89.96), (1.42, 82.55), (3.32, 87.25), (4.18, 86.15), (5.19, 88.36), (6.12, 92.65), (7.16, 85.25), (8.10, 84.62), (9.08, 97.76), (10.34, 99.35), (11.20, 88.35), (12.87, 88.42), (14.25, 97.69), (14.97, 99.89), and (16.32, 93.23). For the right IRI, the plotted values (time, IRI) are (0.32, 87.04), (1.42, 88.62), (3.32, 84.27), (4.18, 84.51), (5.19, 87.28), (6.12, 85.68), (7.16, 88.44), (8.10, 90.73), (9.08, 92.48), (10.34, 99.40), (11.20, 99.18), (12.87, 98.82), (14.25, 101.15), (14.97, 97.44), and (16.32, 105.42).
© ADOT
Figure 29. Graph. IRI Progression for Section 0216.

 

The vertical scale is International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 93.19), (1.42, 60.82), (3.32, 83.23), (4.18, 78.56), (5.19, 81.87), (6.12, 92.88), (7.16, 84.55), (8.10, 86.81), (9.08, 86.92), (10.34, 88.03), (11.20, 84.01), (12.86, 105.09), (14.25, 80.37), (14.97, 109.67), and (16.32, 80.97). For the right IRI, the plotted values (time, IRI) are (0.32, 81.69), (1.42, 69.74), (3.32, 77.53), (4.18, 80.24), (5.19, 78.45), (6.12, 81.44), (7.16, 74.59), (8.10, 77.08), (9.08, 73.86), (10.34, 66.19), (11.20, 73.84), (12.86, 88.52), (14.25, 74.03), (14.97, 81.92), and (16.32, 74.99).
© ADOT
Figure 30. Graph. IRI Progression for Section 0217.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 91.81), (1.42, 65.25), (3.32, 73.56), (4.18, 73.06), (5.19, 73.84), (6.12, 79.02), (7.16, 72.13), (8.10, 70.82), (9.08, 85.21), (10.34, 82.43), (11.20, 72.22), (12.87, 76.62), (14.25, 83.44), (14.97, 80.35), and (16.32, 78.06). For the right IRI, the plotted values (time, IRI) are (0.32, 84.51), (1.42, 58.59), (3.32, 56.11), (4.18, 61.36), (5.19, 60.29), (6.12, 65.13), (7.16, 59.83), (8.10, 62.27), (9.08, 55.62), (10.34, 55.62), (11.20, 64.21), (12.87, 70.72), (14.25, 68.47), (14.97, 75.79), and (16.32, 69.91).
© ADOT
Figure 31. Graph. IRI Progression for Section 0218.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 77.61), (1.42, 67.26), (3.32, 76.98), (4.18, 87.96), (5.19, 83.63), (6.12, 88.82), (7.16, 79.25), (8.10, 87.15), (9.08, 99.98), (10.34, 100.52), (11.20, 90.88), (12.87, 117.12), (14.25, 89.54), (14.97, 118.31), and (16.32, 97.63). For the right IRI, the plotted values (time, IRI) are (0.32, 89.71), (1.42, 83.93), (3.32, 95.05), (4.18, 96.83), (5.19, 102.27), (6.12, 105.33), (7.16, 100.53), (8.10, 110.12), (9.08, 101.94), (10.34, 98.48), (11.20, 110.63), (12.87, 136.06), (14.25, 102.32), (14.97, 134.54), and (16.32, 113.81).
© ADOT
Figure 32. Graph. IRI Progression for Section 0219.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 76.70), (1.42, 66.02), (3.32, 66.39), (4.18, 70.00), (5.19, 68.72), (6.12, 69.13), (7.16, 77.05), (8.10, 67.86), (9.08, 82.04), (10.34, 89.48), (11.20, 72.80), (12.87, 74.80), (14.25, 85.98), (14.97, 91.33), and (16.32, 80.08). For the right IRI, the plotted values (time, IRI) are (0.32, 80.22), (1.42, 72.17), (3.32, 72.27), (4.18, 72.83), (5.19, 73.33), (6.12, 77.14), (7.16, 69.33), (8.10, 77.59), (9.08, 69.05), (10.34, 69.12), (11.20, 80.31), (12.87, 82.21), (14.25, 85.01), (14.97, 78.88), and (16.32, 83.49).
© ADOT
Figure 33. Graph. IRI Progression for Section 0220.

 

The vertical scale show International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 72.61), (1.42, 56.00), (3.32, 77.76), (4.18, 82.17), (5.19, 84.69), (6.12, 84.72), (7.16, 76.36), (8.10, 84.06), (9.08, 90.16), (10.34, 75.55), (11.20, 78.92), (12.86, 100.22), (14.25, 80.69), (14.97, 96.14), and (16.32, 81.92). For the right IRI, the plotted values (time, IRI) are (0.32, 73.21), (1.42, 60.16), (3.32, 78.10), (4.18, 83.98), (5.19, 81.51), (6.12, 87.72), (7.16, 81.94), (8.10, 85.29), (9.08, 77.05), (10.34, 73.80), (11.20, 79.81), (12.86, 98.83), (14.25, 81.11), (14.97, 94.03), and (16.32, 84.24).
© ADOT
Figure 34. Graph. IRI Progression for Section 0221.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 72.13), (1.42, 57.60), (3.32, 72.26), (4.18, 63.65), (5.19, 66.02), (6.12, 79.49), (7.16, 77.40), (8.10, 68.06), (9.08, 88.13), (10.34, 86.70), (11.20, 68.69), (12.87, 72.39), (14.25, 91.04), (14.97, 78.03), and (16.32, 75.96). For the right IRI, the plotted values (time, IRI) are (0.32, 71.17), (1.42, 55.64), (3.32, 55.25), (4.18, 63.15), (5.19, 62.61), (6.12, 64.00), (7.16, 59.98), (8.10, 63.57), (9.08, 57.27), (10.34, 58.14), (11.20, 65.61), (12.87, 73.01), (14.25, 69.38), (14.97, 74.71), and (16.32, 70.47).
© ADOT
Figure 35. Graph. IRI Progression for Section 0222.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 72.53), (1.42, 68.67), (3.32, 79.98), (4.18, 83.29), (5.19, 88.72), (6.12, 89.05), (7.16, 81.57), (8.10, 87.19), (9.08, 107.85), (10.34, 116.76), (11.20, 91.02), (12.87, 111.17), (14.25, 96.64), (14.97, 122.26), and (16.32, 100.64). For the right IRI, the plotted values (time, IRI) are (0.32, 80.77), (1.42, 79.31), (3.32, 84.66), (4.18, 87.62), (5.19, 91.92), (6.12, 95.17), (7.16, 93.67), (8.10, 99.40), (9.08, 88.25), (10.34, 85.87), (11.20, 98.31), (12.87, 119.89), (14.25, 95.90), (14.97, 118.12), and (16.32, 102.44).
© ADOT
Figure 36. Graph. IRI Progression for Section 0223.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 64.70), (1.42, 59.74), (3.32, 72.53), (4.18, 63.57), (5.19, 63.78), (6.12, 79.95), (7.16, 83.25), (8.10, 66.41), (9.08, 83.82), (10.34, 114.47), (11.20, 70.32), (12.87, 78.44), (14.25, 79.06), (14.97, 89.03), and (16.32, 84.96). For the right IRI, the plotted values (time, IRI) are (0.32, 67.44), (1.42, 71.43), (3.32, 69.01), (4.18, 70.57), (5.19, 75.09), (6.12, 71.09), (7.16, 69.49), (8.10, 76.93), (9.08, 72.08), (10.34, 70.77), (11.20, 78.97), (12.87, 74.30), (14.25, 77.24), (14.97, 77.68), and (16.32, 83.64).
© ADOT
Figure 37. Graph. IRI Progression for Section 0224.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 56.87), (1.42, 61.63), (3.32, 64.03), (4.18, 62.44), (5.19, 61.17), (6.12, 63.15), (7.16, 62.19), (8.10, 62.07), (9.08, 64.50), (10.34, 65.04), (11.20, 65.99), (12.86, 87.78), (14.25, 105.39), (14.97, 110.97), and (16.32, 121.10). For the right IRI, the plotted values (time, IRI) are (0.32, 68.93), (1.42, 74.53), (3.32, 69.98), (4.18, 70.12), (5.19, 68.75), (6.12, 68.01), (7.16, 67.59), (8.10, 70.05), (9.08, 59.85), (10.34, 60.18), (11.20, 68.75), (12.86, 70.02), (14.25, 66.36), (14.97, 72.47), and (16.32, 77.84).
© ADOT
Figure 38. Graph. IRI Progression for Section 0260.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 40.13), (1.42, 38.38), (3.32, 40.19), (4.18, 41.20), (5.19, 39.15), (6.12, 38.53), (7.16, 37.98), (8.10, 40.43), (9.08, 38.03), (10.34, 38.65), (11.20, 41.78), (12.87, 43.58), (14.25, 44.13), (14.97, 46.80), and (16.32, 57.46). For the right IRI, the plotted values (time, IRI) are (0.32, 53.11), (1.42, 60.00), (3.32, 59.92), (4.18, 58.13), (5.19, 60.01), (6.12, 58.64), (7.16, 58.66), (8.10, 59.89), (9.08, 54.93), (10.34, 55.12), (11.20, 61.51), (12.87, 66.19), (14.25, 72.30), (14.97, 82.48), and (16.32, 111.13).
© ADOT
Figure 39. Graph. IRI Progression for Section 0261.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 72.37), (1.42, 67.00), (3.32, 112.34), (4.18, 122.31), (5.19, 137.08), (6.12, 143.66), (7.16, 138.74), (8.10, 157.88), (9.08, 155.43), (10.34, 157.80), (11.20, 162.99), (12.86, 194.67), (14.25, 185.89), (14.97, 204.29), and (16.32, 194.91). For the right IRI, the plotted values (time, IRI) are (0.32, 66.90), (1.42, 70.41), (3.32, 109.76), (4.18, 117.93), (5.19, 137.83), (6.12, 150.42), (7.16, 154.84), (8.10, 174.75), (9.08, 173.69), (10.34, 170.79), (11.20, 193.10), (12.86, 224.61), (14.25, 233.61), (14.97, 248.87), and (16.32, 229.12).
© ADOT
Figure 40. Graph. IRI Progression for Section 0262.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 68.49), (1.42, 59.29), (3.32, 79.56), (4.18, 80.98), (5.19, 82.12), (6.12, 89.90), (7.16, 81.92), (8.10, 86.20), (9.08, 91.68), (10.34, 90.16), (11.20, 84.16), (12.86, 103.86), (14.25, 92.06), (14.97, 102.69), and (16.32, 87.91). For the right IRI, the plotted values (time, IRI) are (0.32, 69.71), (1.42, 67.81), (3.32, 73.48), (4.18, 78.63), (5.19, 81.84), (6.12, 80.90), (7.16, 77.83), (8.10, 83.08), (9.08, 83.38), (10.34, 83.44), (11.20, 79.95), (12.86, 95.34), (14.25, 81.43), (14.97, 93.38), and (16.32, 78.99).
© ADOT
Figure 41. Graph. IRI Progression for Section 0263.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 105.18), (1.42, 93.18), (3.32, 113.34), (4.18, 114.85), (5.19, 113.52), (6.12, 121.17), (7.16, 119.33), (8.10, 118.53), (9.08, 122.03), (10.34, 120.96), (11.20, 122.91), (12.87, 139.97), (14.25, 135.47), (14.97, 149.82), and (16.32, 128.20). For the right IRI, the plotted values (time, IRI) are (0.32, 112.75), (1.42, 117.29), (3.32, 122.37), (4.18, 126.09), (5.19, 133.28), (6.12, 130.46), (7.16, 128.51), (8.10, 140.11), (9.08, 124.68), (10.34, 123.21), (11.20, 135.17), (12.87, 141.31), (14.25, 132.25), (14.97, 147.71), and (16.32, 143.89).
© ADOT
Figure 42. Graph. IRI Progression for Section 0264.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 83.58), (1.42, 80.72), (3.32, 96.34), (4.18, 98.68), (5.19, 106.76), (6.12, 109.13), (7.16, 107.23), (8.10, 117.74), (9.08, 114.11), (10.34, 112.18), (11.20, 114.36), (12.87, 135.87), (14.25, 123.21), (14.97, 143.42), and (16.32, 132.50). For the right IRI, the plotted values (time, IRI) are (0.32, 88.68), (1.42, 96.33), (3.32, 105.91), (4.18, 114.94), (5.19, 123.49), (6.12, 127.60), (7.16, 133.42), (8.10, 146.47), (9.08, 140.54), (10.34, 144.98), (11.20, 156.29), (12.87, 168.42), (14.25, 167.93), (14.97, 181.68), and (16.32, 179.80).
© ADOT
Figure 43. Graph. IRI Progression for Section 0265.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 81.77), (1.42, 79.17), (3.32, 86.91), (4.18, 88.38), (5.19, 91.48), (6.12, 95.37), (7.16, 89.08), (8.10, 99.45), (9.08, 118.45), (10.34, 103.80), (11.20, 97.73), (12.87, 122.12), (14.25, 113.78), (14.97, 132.88), and (16.32, 105.73). For the right IRI, the plotted values (time, IRI) are (0.32, 92.74), (1.42, 95.16), (3.32, 94.06), (4.18, 100.12), (5.19, 102.08), (6.12, 103.61), (7.16, 101.06), (8.10, 110.01), (9.08, 108.27), (10.34, 102.50), (11.20, 108.52), (12.87, 124.54), (14.25, 108.96), (14.97, 129.19), and (16.32, 112.19).
© ADOT
Figure 44. Graph. IRI Progression for Section 0266.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 79.93), (1.42, 79.40), (3.32, 74.92), (4.18, 83.12), (5.19, 82.37), (6.12, 78.37), (7.16, 76.13), (8.10, 86.49), (9.08, 91.76), (10.34, 86.48), (11.20, 87.65), (12.87, 98.45), (14.25, 80.98), (14.97, 92.24), and (16.32, 77.47). For the right IRI, the plotted values (time, IRI) are (0.32, 105.87), (1.42, 111.55), (3.32, 105.66), (4.18, 113.04), (5.19, 114.65), (6.12, 114.43), (7.16, 110.90), (8.10, 120.41), (9.08, 109.98), (10.34, 104.29), (11.20, 113.82), (12.87, 110.44), (14.25, 83.77), (14.97, 101.17), and (16.32, 91.39).
© ADOT
Figure 45. Graph. IRI Progression for Section 0267.

 

The vertical scale shows International Roughness Index (IRI) from 0 to 250 inches/mi. The horizontal scale shows time (since the site was opened to traffic) from 0 to 18 years. The plot shows 15 points for left IRI and 15 points for right IRI. For the left IRI, the plotted values (time, IRI) are (0.32, 84.94), (1.42, 79.94), (3.32, 90.54), (4.18, 88.72), (5.19, 92.63), (6.12, 94.22), (7.16, 92.35), (8.10, 97.46), (9.08, 101.54), (10.34, 99.37), (11.20, 97.38), (12.87, 115.51), (14.25, 98.68), (14.97, 106.46), and (16.32, 94.19). For the right IRI, the plotted values (time, IRI) are (0.32, 93.51), (1.42, 96.00), (3.32, 91.82), (4.18, 94.69), (5.19, 98.24), (6.12, 97.63), (7.16, 97.04), (8.10, 103.84), (9.08, 96.27), (10.34, 91.20), (11.20, 97.60), (12.87, 111.75), (14.25, 94.34), (14.97, 106.86), and (16.32, 100.13).
© ADOT
Figure 46. Graph. IRI Progression for Section 0268.

 


The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT).
The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT). Provide leadership and technology for the delivery of long life pavements that meet our customers needs and are safe, cost effective, and can be effectively maintained. Federal Highway Administration's (FHWA) R&T Web site portal, which provides access to or information about the Agency’s R&T program, projects, partnerships, publications, and results.
FHWA
United States Department of Transportation - Federal Highway Administration