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Page 426
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
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Page 427
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 428
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 429
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 430
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 431
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 432
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 433
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 435
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 436
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 437
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 438
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 439
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 440
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 441
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 443
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 444
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 447
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 450
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 451
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 452
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 453
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 454
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
Page 454
Page 455
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
Page 455
Page 456
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 457
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Page 458
Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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Suggested Citation:"Appendix A1: Site Summaries for SPS-1 Experiment." National Academies of Sciences, Engineering, and Medicine. 2005. LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements. Washington, DC: The National Academies Press. doi: 10.17226/21973.
×
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APPENDIX A1 Site Summaries for SPS-1 experiment (Inventory/construction details, status and data availability)

A1-2 ALABAMA (1) Site Description The LTPP sections of Alabama were built on U.S. 280 east of Opelika, AL, in 1992. U.S. 280 is a four lane road with an AC shoulder. Table A- 1 summarizes the inventory data for SPS-1 Alabama sections. The sections in the experiment design are 01-0101 through 01-0112 and three additional sections. Table A- 1 Inventory data for SPS-1 Alabama sections Site code 01 Climate Wet-No-Freeze Average annual precipitation (mm) 1,340 Average annual freezing index (˚C·days) 9 Estimated Traffic (ESAL) 237,000 Subgrade soil Fine-grained Shoulder AC Construction Issues The subgrade preparation for this site began in September 1991 and upon the completion the Alabama Highway Department allowed the subgrade to sit undisturbed for approximately one year. Pavement layer placement began in June 1992. Mechanical problems of the track paver and rain at the site delayed the paving operations. Due to this delay, some of the materials were not compacted at the optimum compaction temperature range. Later, because the paver encountered further mechanical problems it was replaced by a rubber-tired paver, leaving a construction joint at section 01-0111. In addition, some deformation was noticed on the PATB layer. Site Status Several sections did not meet the thickness requirements set by FHWA and deviated from the requirements for more than 6 mm. In addition, the DGAB contained more material passing the No. 200 sieve than allowed. Table A-2 summarizes the design features for the sections.

A1-3 Table A- 2 Design features for SPS-1 Alabama sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0101 7 7.5 8 7.9 DGAB No 0102 4 4.2 12 11.9 DGAB No 0103 4 4.6 8 7.4 ATB No 0104 7 6.5 12 11.7 ATB No 0105 4 4.2 8 11.9 ATB/DGAB No 0106 7 7.2 12 12.1 ATB/DGAB No 0107 4 4.6 8 7.7 PATB/DGAB Yes 0108 7 7.3 12 12.1 PATB/DGAB Yes 0109 7 7.6 16 16.1 PATB/DGAB Yes 0110 7 7.9 8 7.7 ATB/PATB Yes 0111 4 4.4 12 11.6 ATB/PATB Yes 0112 4 3.4 16 15.7 ATB/PATB Yes Data Availability Table A- 3 summarizes the available data for sections in Alabama. Sections 01-0101 and 01- 0102 had more data available than other sections in all fields. Table A- 3 Data availability (No. of surveys) for SPS-1 Alabama sections Distress SHRP ID Cracking Rutting IRI FWD 0101 12 12 14 34 0102 12 12 15 33 0103 7 9 6 6 0104 7 9 8 7 0105 7 9 6 6 0106 7 9 7 6 0107 6 8 7 5 0108 7 9 8 7 0109 7 9 6 6 0110 7 9 7 7 0111 7 9 6 6 0112 7 9 7 6

A1-4 ARIZONA (4) Site Description The LTPP sections of Arizona were built on U.S. 93 north of Kingman, AZ, in 1993. U.S. 280 is a four lane road with the inventory data summarized in Table A- 4. The sections in the experiment design are 04-0113 through 04-0124 and four additional sections. Table A- 4 Inventory data for SPS-1 Arizona sections Site code 04 Climate Dry-No-Freeze Average annual precipitation (mm) 241 Average annual freezing index (˚C-days) 1 Estimated Traffic (ESAL) 185,000 Subgrade soil Coarse-grained Shoulder N/A Construction Issues The majority of the test sections were constructed on fill material. The cut sections include all of test sections 04-0113, 04-0161 and half of 04-0162. These sections were later scarified to a depth of 18 inches and reprocessed to simulate fill sections. Heavy rain occurred during several days of the subgrade placement. The rainfall for this (1992- 93) period was much higher than normal. Due to the rain, the subgrade material began to pump. Site Status The gradation for the AC mix did not meet the requirements. In addition, the DGAB on sections 04-0119 and 04-0122 did not meet the gradation requirements. Table A-5 summarizes the design features for the sections.

A1-5 Table A- 5 Design features for SPS-1 Arizona sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0113 4 4.5 8 7.5 DGAB No 0114 7 6.8 12 12 DGAB No 0115 7 6.6 8 8.5 ATB No 0116 4 4.1 12 12.1 ATB No 0117 7 7.6 8 8.4 ATB/DGAB No 0118 4 4 12 11.8 ATB/DGAB No 0119 7 6.3 8 8.7 PATB/DGAB Yes 0120 4 4 12 11.9 PATB/DGAB Yes 0121 4 4.1 16 16 PATB/DGAB Yes 0122 4 4.2 8 8.6 ATB/PATB Yes 0123 7 6.8 12 11.7 ATB/PATB Yes 0124 7 6.7 16 15.8 ATB/PATB Yes Data Availability Table A- 6 summarizes the available data for sections in Arizona. Sections 04-0113 and 04-0114 had more data available than other sections. Table A- 6 Data availability (No. of surveys) for SPS-1 Arizona sections Distress SHRP ID Cracking Rutting IRI FWD 0113 20 20 24 37 0114 19 20 24 36 0115 7 11 10 6 0116 7 10 10 6 0117 7 10 10 6 0118 7 10 10 6 0119 7 11 10 6 0120 7 10 10 6 0121 7 10 10 6 0122 7 10 10 6 0123 7 10 10 6 0124 7 10 10 6

A1-6 ARKANSAS (5) Site Description The LTPP sections of Arkansas were built on U.S. 63 southeast of Jonesboro, AR, in 1992. U.S. 63 is a four lane road with an AC shoulder. Table A- 7 summarizes the inventory data. The sections in the experiment design are 050113 through 050124 and do not have any additional sections. Table A- 7 Inventory data for SPS-1 Arkansas sections Site code 05 Climate Wet-Freeze Average annual precipitation (mm) 1,224 Average annual freezing index (˚C-days) 47 Estimated Traffic (ESAL) 170,000 Subgrade soil Coarse-grained Shoulder AC Construction Issues During the placement of edge drains, observations revealed that the contractor had failed to leave sufficient fabric to overlap the pavement as per specifications; to remedy this, the contractor used a trencher to remove the edge drain and it was replaced in accordance with the project and LTPP specifications. During October, there were significant delays in paving over the exposed DGAB surface due to rain. The rain delays were also encountered during asphalt paving operations. Site Status The AC mix did not meet the design criteria. The requirements were a minimum stability of 8 KN and a flow between 2 to 4 mm, where the mix had 7.9 KN of stability and 1.8 mm of flow. In addition, none of the sections met the thickness requirements. Table A-8 summarizes the design features for the sections.

A1-7 Table A- 8 Design features for SPS-1 Arkansas Sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0113 4 4.1 8 8.2 DGAB No 0114 7 6.9 12 11.3 DGAB No 0115 7 7 8 7.4 ATB No 0116 4 4.1 12 11.8 ATB No 0117 7 6.9 8 8 ATB/DGAB No 0118 4 4.1 12 11.4 ATB/DGAB No 0119 7 6.8 8 7.6 PATB/DGAB Yes 0120 4 4.2 12 11.4 PATB/DGAB Yes 0121 4 4.5 16 15.5 PATB/DGAB Yes 0122 4 4.6 8 7.8 ATB/PATB Yes 0123 7 7 12 11.7 ATB/PATB Yes 0124 7 6.9 16 14.8 ATB/PATB Yes Data Availability Table A- 9 summarizes the available data for sections in Arkansas. The data availability is uniform over the sections in all fields. Table A- 9 Data availability (No. of surveys) for SPS-1 Arkansas sections Distress SHRP ID Cracking Rutting IRI FWD 0113 5 8 5 5 0114 5 8 5 5 0115 5 8 5 5 0116 5 8 5 5 0117 5 9 5 5 0118 5 9 5 5 0119 5 9 5 5 0120 5 9 5 5 0121 5 9 4 5 0122 5 9 5 5 0123 5 9 5 5 0124 5 9 5 5

A1-8 DELAWARE (10) Site Description The LTPP Sections of Delaware were built on U.S. 113 close to Ellendale, DE, in 1995. U.S. 113 is a four lane road with an AC shoulder. The inventory data is summarized in Table A- 10. The Sections in the experiment design are 10-0101 through 10-0112 with two additional Sections. Table A- 10 Inventory data for SPS-1 Delaware Sections Site code 10 Climate Wet-Freeze Average annual precipitation (mm) 1,145 Average annual freezing index (˚C-ays) 58 Estimated Traffic (ESAL) 203,200 Subgrade soil Coarse-grained Shoulder AC Construction Issues There was one deviation of the contract drawings from the SPS-1 construction guidelines (inside shoulder): The pavement structure of the test sections did not carry out through the shoulder, and the edge drains were placed at the edge of the passing lane instead of a minimum of 3 ft o/s. The 6” DGAB on the shoulder was replaced with 3” of type ‘A’ borrow and 3” of deep strength asphalt. These conditions were not considered serious deviations since they will not affect the performance of the driving lane. The transverse under drains were not installed because the longitudinal grade was considered to be too flat. In addition, one of the sections (10-0102) showed early signs of distress (rutting and alligator cracking). Site Status The aggregate gradation of the HMA mix did not meet the criteria for the No. 4 sieve. The average thickness of at least one layer did not meet the criteria except for sections 10-0101 and 10-0102. Table A- 11 summarizes the design features for the sections.

A1-9 Table A- 11 Design features for SPS-1 Delaware Sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0101 7 8.1 8 8.1 DGAB No 0102 4 5.1 12 11.8 DGAB No 0103 4 5.8 8 8 ATB No 0104 7 7.7 12 12 ATB No 0105 4 5.4 8 7.8 ATB/DGAB No 0106 7 7.7 12 12.4 ATB/DGAB No 0107 4 5.8 8 7.7 PATB/DGAB Yes 0108 7 8 12 11 PATB/DGAB Yes 0109 7 8.3 16 16.3 PATB/DGAB Yes 0110 7 8.2 8 7.7 ATB/PATB Yes 0111 4 4.7 12 12.6 ATB/PATB Yes 0112 4 5.5 16 15.7 ATB/PATB Yes Data Availability Table A- 12 summarizes the available data for sections in Delaware. The number of data over the sections is distributed uniformly except for section 10-0102 which had the most number of data available. Table A- 12 Data availability (No. of surveys) for SPS-1 Delaware sections Distress SHRP ID Cracking Rutting IRI FWD 0101 7 8 11 3 0102 10 12 13 21 0103 7 8 11 3 0104 7 8 11 3 0105 8 9 11 4 0106 7 8 11 3 0107 7 8 11 3 0108 7 8 11 3 0109 7 8 11 3 0110 7 8 11 3 0111 6 8 11 3 0112 6 8 11 3

A1-10 FLORIDA (12) Site Description The LTPP sections of Florida were built on U.S. 27 south of South Bay, FL, in 1995. U.S. 27 is a four lane road with an AC shoulder. The inventory data is summarized in Table A- 13. The sections in the experiment design are 12-0101 through 12-0112 with one additional section. Table A- 13 Inventory data for SPS-1 Florida sections Site code 12 Climate Wet-No-Freeze Average annual precipitation (mm) 1,325 Average annual freezing index (˚C-days) 0 Estimated Traffic (ESAL) 1,463,200 Subgrade soil Coarse-grained Shoulder AC Construction Issues Rain slowed or stopped construction progress periodically throughout the winter, requiring the exposed DGAB surface to be reworked to meet density and moisture content specifications. Site Status The HMA mix did not meet the requirement for No. 4 sieve. The mix contained about 60 percent passing the No. 4 sieve which is 20 percent more than the requirement. For all sections the maximum and minimum thicknesses deviated from the design requirements by more than 6 mm. Table A-14 summarizes the design features for the sections.

A1-11 Table A- 14 Design features for SPS-1 Florida Sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0101 7 6.8 8 8.1 DGAB No 0102 4 3.9 12 12.1 DGAB No 0103 4 4.1 8 8 ATB No 0104 7 6.8 12 12.1 ATB No 0105 4 4 8 8 ATB/DGAB No 0106 7 7.2 12 12.2 ATB/DGAB No 0107 4 3.9 8 8.2 PATB/DGAB Yes 0108 7 6.4 12 11.9 PATB/DGAB Yes 0109 7 7.1 16 15.8 PATB/DGAB Yes 0110 7 7.3 8 8.2 ATB/PATB Yes 0111 4 3.9 12 12.2 ATB/PATB Yes 0112 4 3.9 16 16.2 ATB/PATB Yes Data Availability Table A- 15 summarizes the available data for sections in Florida. The distribution is uniform for all fields except for the IRI. Sections 12-0102, 12-0104, 12-0108 and 12-0110 had more data points available in IRI than other sections. Table A- 15 Data availability (No. of surveys) for SPS-1 Florida sections Distress SHRP ID Cracking Rutting IRI FWD 0101 4 6 4 4 0102 5 6 7 4 0103 5 6 4 4 0104 5 6 7 4 0105 5 6 4 4 0106 5 6 4 4 0107 5 6 4 4 0108 5 6 7 4 0109 5 6 4 4 0110 5 6 7 4 0111 5 6 4 4 0112 5 6 4 4

A1-12 IOWA (19) Site Description The LTPP sections of Iowa were built on U.S. 61 near Fort Madison, IA, in 1992. U.S. 61 is a four lane road with an AC shoulder. The inventory data is summarized in Table A- 16. The sections in the experiment design are 19-0101 through 19-0112 with one additional section. Table A- 16 Inventory data for SPS-1 Iowa sections Site code 19 Climate Wet-Freeze Average annual precipitation (mm) 982 Average annual freezing index (˚C-days) 235 Estimated Traffic (ESAL) 130,000 Subgrade soil Fine-grained Shoulder AC Construction Issues Construction was delayed due to an especially rainy season. The work was suspended for 20 days (in July) because the subgrade was too soft to support the paver. The consequence of the construction problems may reflect in the performance as indicated in the construction report. The contractor had some difficulties in placing the PATB layer. Some areas were compacted at very high temperature. This caused some of the material to move to the sides. Site Status Several sections had at least one layer whose average thickness deviated from design by more than 6 mm. According to the construction report, sections 19-0107 and 19-0108 had 19 mm to 25 mm thicker PATB than design. The HMA mix did not meet the requirement for No. 4 sieve. Table A-17 summarizes the design features for the sections.

A1-13 Table A- 17 Design features for SPS-1 Iowa Sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0101 7 8 8 8 DGAB No 0102 4 5.1 12 12 DGAB No 0103 4 3.8 8 8.4 ATB No 0104 7 7 12 12.4 ATB No 0105 4 3.5 8 8.7 ATB/DGAB No 0106 7 6.8 12 13 ATB/DGAB No 0107 4 3.4 8 8.2 PATB/DGAB Yes 0108 7 5.9 12 12.6 PATB/DGAB Yes 0109 7 7.5 16 16.9 PATB/DGAB Yes 0110 7 7.9 8 7.6 ATB/PATB Yes 0111 4 4.4 12 11.8 ATB/PATB Yes 0112 4 4.6 16 16.5 ATB/PATB Yes Data Availability Table A- 18 summarizes the available data for sections in Iowa. The data distribution is uniform for cracking data. However, small variability in the number of data is observed in other fields. Table A- 18 Data availability (No. of surveys) for SPS-1 Iowa sections Distress SHRP ID Cracking Rutting IRI FWD 0101 5 9 8 5 0102 4 9 10 5 0103 4 9 8 6 0104 4 10 8 6 0105 4 7 8 5 0106 4 8 10 6 0107 5 11 9 7 0108 4 9 10 5 0109 4 10 10 4 0110 4 8 9 4 0111 4 8 9 4 0112 4 8 9 4

A1-14 KANSAS (20) Site Description The LTPP sections of Iowa were built on U.S. 54. For these sections, the construction reports were not available. The inventory data is summarized in Table A- 19. The sections in the experiment design are 20-0101 through 20-0112 with one additional section. Table A- 19 Inventory data for SPS-1 Kansas sections Site code 20 Climate Wet-Freeze Average annual precipitation (mm) 672 Average annual freezing index (˚C-days) 136 Estimated Traffic (ESAL) N/A Subgrade soil Fine-grained Shoulder N/A Construction Issues The contractor experienced several problems during construction, many of which were caused by the weather. The area experienced much higher than average precipitation during spring 1993, resulting in delays and a wet subgrade. To dry out the subgrade, the contractor was allowed to incorporate fly ash. During FWD testing, high deflections were measured in the base in some areas. There was also segregation in the mix; these problems were ‘corrected’ with adjustments in construction methods. Site Status The thickness for each layer deviates more than 6 mm from the requirements for all sections except 20-0104, 20-0105 and 20-0110. No other deviations are noted from the data. Table A-20 summarizes the design features for the sections.

A1-15 Table A- 20 Design features for SPS-1 Kansas Sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0101 7 7.6 8 8.5 DGAB No 0102 4 4 12 12.3 DGAB No 0103 4 3.6 8 7.7 ATB No 0104 7 6.8 12 12.1 ATB No 0105 4 3.9 8 7.9 ATB/DGAB No 0106 7 7.3 12 11.3 ATB/DGAB No 0107 4 4.1 8 7.8 PATB/DGAB Yes 0108 7 7.6 12 11.5 PATB/DGAB Yes 0109 7 7 16 15.5 PATB/DGAB Yes 0110 7 7 8 7.7 ATB/PATB Yes 0111 4 4 12 12.1 ATB/PATB Yes 0112 4 5 16 15.6 ATB/PATB Yes Data Availability Table A- 21 summarizes the available data for sections in Kansas. The number of available data shows variability over the sections and over the fields. Table A- 21 Data availability (No. of surveys) for SPS-1 Kansas sections Distress SHRP ID Cracking Rutting IRI FWD 0101 3 9 3 3 0102 3 7 3 3 0103 6 12 8 6 0104 5 12 8 6 0105 6 10 8 6 0106 6 11 7 6 0107 3 7 3 3 0108 6 12 7 5 0109 6 13 8 6 0110 6 11 8 6 0111 6 12 8 6 0112 6 12 8 6

A1-16 LOUISIANA (22) Site Description The LTPP sections of Louisiana were built on U.S. 171 between Moss Bluff and Gillis, LA, in 1997. U.S. 171 is a four lane road with an AC shoulder. The inventory data is summarized in Table A- 22. The sections in the experiment design are 22-0101 through 22-0112 without any additional sections. Table A- 22 Inventory data for SPS-1 Louisiana sections Site code 22 Climate Wet-No-Freeze Average annual precipitation (mm) 1,538 Average annual freezing index (˚C-days) 2 Estimated Traffic (ESAL) 523,920 Subgrade soil Fine-grained Shoulder AC Construction Issues The contractors encountered difficulties constructing on the clayey silt material found throughout the project site. Therefore, stabilizing of subgrade was considered as an alternate. Twelve percent cement was used throughout the length of the project. Rain delays were also encountered during the construction of the test sections. Site Status Every section had at least one layer with the thickness deviating more than 6 mm from the design thickness. Maximum and minimum thickness values for some of the sections deviated by a large amount. Table A-23 summarizes the design features for the sections.

A1-17 Table A- 23 Design features for SPS-1 Louisiana Sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0113 4 4.9 8 8.1 DGAB No 0114 7 9.5 12 11.4 DGAB No 0115 7 7 8 9 ATB No 0116 4 4.7 12 11.3 ATB No 0117 7 7 8 9.2 ATB/DGAB No 0118 4 4.4 12 11.1 ATB/DGAB No 0119 7 7.1 8 8.1 PATB/DGAB Yes 0120 4 3.9 12 12 PATB/DGAB Yes 0121 4 4.1 16 17.1 PATB/DGAB Yes 0122 4 4.6 8 7.1 ATB/PATB Yes 0123 7 6.8 12 11.5 ATB/PATB Yes 0124 7 7.2 16 14.2 ATB/PATB Yes Data Availability Table A- 24 summarizes the available data for sections in Louisiana. It shows that enough data is not present for research purposes. Table A- 24 Data availability (No. of surveys) for SPS-1 Louisiana sections Distress SHRP ID Cracking Rutting IRI FWD 0113 2 5 1 1 0114 2 5 1 1 0115 2 5 1 1 0116 2 5 1 1 0117 2 5 1 1 0118 2 5 1 1 0119 2 5 1 1 0120 2 4 1 1 0121 2 5 1 1 0122 2 5 1 1 0123 2 5 1 1 0124 2 5 1 1

A1-18 MICHIGAN (26) Site Description The LTPP sections of Michigan were built on U.S. 27 near St. Johns, MI, in 1995. The sections were constructed with AC shoulders. The final construction report was not available for this state. The inventory data is summarized in Table A- 25. The sections in the experiment design are 26- 0113 through 26-0124 with one additional section. Table A- 25 Inventory data for SPS-1 Michigan sections Site code 26 Climate Wet-Freeze Average annual precipitation (mm) 870 Average annual freezing index (˚C-days) 283 Estimated Traffic (ESAL) N/A Subgrade soil Fine-grained Shoulder AC Construction Issues There was no construction report available. Four of the sections failed two months after the project was completed (Sections 0113, 0114, 0119 and 0122). No monitoring data was collected for these four sections. Site Status The thickness for each layer deviates more than 6 mm from the requirements for all sections except 26-0116, 26-0122 and 26-0123. No other deviations are noted from the data. Table A- 26 summarizes the design features for the sections. Table A- 26 Design features for SPS-1 Michigan sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0115 7 5.9 8 9.6 ATB No 0116 4 3.9 12 12 ATB No 0117 7 6.4 8 9.2 ATB/DGAB No 0118 4 3.5 12 12.3 ATB/DGAB No 0120 4 3.6 12 12 PATB/DGAB Yes 0121 4 3.9 16 16 PATB/DGAB Yes 0123 7 6.2 12 12 ATB/PATB Yes 0124 7 6.3 16 16.2 ATB/PATB Yes

A1-19 Data Availability Table A- 27 summarizes the available data for sections in Michigan. Some sections did not have any data available while available data had a little variability. Table A- 27 Data availability (No. of surveys) for SPS-1 Michigan sections Distress SHRP ID Cracking Rutting IRI FWD 0115 8 8 8 5 0116 8 8 8 6 0117 8 8 8 5 0118 2 3 7 3 0120 2 3 6 3 0121 2 3 7 3 0123 8 9 8 6 0124 8 9 8 6

A1-20 MONTANA (30) Site Description The LTPP sections of Montana were built on U.S. 15 in 1998. The sections were constructed with AC shoulders. The inventory data is summarized in Table A- 28. The sections in the experiment design are 30-0113 through 30-0124 without any additional sections. Table A- 28 Inventory data for SPS-1 Montana sections Site code 30 Climate Dry-Freeze Average annual precipitation (mm) 317 Average annual freezing index (˚C-days) 200 Estimated Traffic (ESAL) N/A Subgrade soil Coarse-grained Shoulder AC Construction Issues During the placement of subgrade, rain interrupted construction several times and caused the subgrade to become saturated. Some water logging was developed in few sections. One particular section, 30-0116 required the use of class-2 geo-fabric to stabilize the subgrade. There were minor localized problems with DGAB constructions on sections 30-0113 and 30- 0118 respectively. Section 30-0113 had a soft spot beginning at station 1+75 to 4+50, 0.91 m (3 ft) right of the center line extending to 4.88 m right of the center line about 8 in deep due to some clay and excessive moisture in subgrade. Similarly, section 30-0118 had soft spots beginning at 0+75 to 1+00, from center line extending up to 2.44 m right of the center line about 6 to 8 inches deep due to some clay and excessive moisture in the subgrade. Site Status Every section had at least one layer with the thickness deviating more than 6 mm from the design thickness. Table A-29 summarizes the design features for the sections.

A1-21 Table A- 29 Design features for SPS-1 Montana sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0113 4 4.8 8 8.4 DGAB No 0114 7 7.2 12 12.4 DGAB No 0115 7 7.4 8 9.1 ATB No 0116 4 4.6 12 12.6 ATB No 0117 7 7.2 8 9.2 ATB/DGAB No 0118 4 4.6 12 12.9 ATB/DGAB No 0119 7 7.3 8 8.9 PATB/DGAB Yes 0120 4 4.2 12 12.5 PATB/DGAB Yes 0121 4 4.3 16 16.5 PATB/DGAB Yes 0122 4 4.5 8 8.3 ATB/PATB Yes 0123 7 7.5 12 12.4 ATB/PATB Yes 0124 7 7.2 16 17.9 ATB/PATB Yes Data Availability Table A- 30 summarizes the available data for sections in Montana. The distribution of data is uniform over the sections except for section 30-0114 which has the more frequency of data collection. Table A- 30 Data availability (No. of surveys) for SPS-1 Montana sections Distress SHRP ID Cracking Rutting IRI FWD 0113 6 7 6 3 0114 11 12 21 19 0115 6 7 6 3 0116 6 7 6 3 0117 6 7 6 3 0118 6 7 6 3 0119 6 7 6 3 0120 6 7 6 3 0121 6 7 6 3 0122 6 7 6 3 0123 6 7 6 3 0124 6 7 6 3

A1-22 NEBRASKA (31) Site Description The LTPP sections of Nebraska were built on U.S. 81 southwest of Lincoln, NE, in 1995. The sections were constructed with AC shoulders. The inventory data is summarized in Table A- 31. The sections in the experiment design are 31-0113 through 31-0124 without any additional sections. Table A- 31 Inventory data for SPS-1 Nebraska sections Site code 31 Climate Wet-Freeze Average annual precipitation (mm) 785 Average annual freezing index (˚C-days) 228 Estimated Traffic (ESAL) 119,000 Subgrade soil Fine-grained Shoulder AC Construction Issues There was two-way traffic on the new pavement until the existing original road had been reconstructed. Also, three of the test sections are located over culverts. However, the fill depths are greater than 10 feet at these locations. Rain caused several delays during the construction. Site Status The thickness for each layer deviates more than 6 mm from the requirements for all sections except 31-0113 and 31-0121. No other deviations are noted from the data. Table A- 32 summarizes the design features for the sections. Table A- 32 Design features for SPS-1 Nebraska sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0113 4 5.1 8 8 DGAB No 0114 7 6.7 12 12 DGAB No 0115 7 4.4 8 12.7 ATB No 0116 4 4.4 12 12.7 ATB No 0117 7 7.9 8 7.8 ATB/DGAB No 0118 4 4.3 12 12.4 ATB/DGAB No 0119 7 7.9 8 8 PATB/DGAB Yes 0120 4 4.7 12 12 PATB/DGAB Yes 0121 4 5.3 16 16 PATB/DGAB Yes 0122 4 3.8 8 8.4 ATB/PATB Yes 0123 7 7.5 12 12.1 ATB/PATB Yes 0124 7 7.5 16 16.3 ATB/PATB Yes

A1-23 Data Availability Table A- 33 summarizes the available data for sections in Nebraska. The distribution of data is uniform over the sections except for section 31-0114 which had the most amount of data. Table A- 33 Data availability (No. of surveys) for SPS-1 Nebraska sections Distress SHRP ID Cracking Rutting IRI FWD 0113 2 5 7 3 0114 13 16 22 33 0115 3 7 9 4 0116 3 6 9 4 0117 3 7 9 3 0118 3 6 9 4 0119 3 7 9 4 0120 3 6 9 4 0121 3 7 9 4 0122 3 6 9 4 0123 3 7 9 4 0124 3 7 9 4

A1-24 NEVADA (32) Site Description The LTPP sections of Nevada were built on U.S. 80 west of Battle Mountain, NV, in 1995. The sections were constructed with AC shoulders. The inventory data is summarized in Table A- 34. The sections in the experiment design are 32-0101 through 32-0112 without any additional sections. Table A- 34 Inventory data for SPS-1 Nevada sections Site code 32 Climate Dry-Freeze Average annual precipitation (mm) 223 Average annual freezing index (˚C-days) 156 Estimated Traffic (ESAL) 799,000 Subgrade soil Coarse-grained Shoulder AC Construction Issues The original subgrade was stabilized with lime and the embankment was replaced. In addition, during the placement of the PATB in section 32-0110 the contractor experienced a plant breakdown which delayed the paving for about 1 hour. Site Status The thickness for each layer deviates more than 6 mm from the requirements for all sections except 32-0109. The DGAB did not meet the gradation requirements for materials passing No. 200 sieve. Table A- 35 summarizes the design features for the sections. Table A- 35 Design features for SPS-1 Nevada sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0101 7 7.2 8 8.5 DGAB No 0102 4 4.3 12 11.7 DGAB No 0103 4 4.1 8 8.8 ATB No 0104 7 7.3 12 12.4 ATB No 0105 4 4.2 8 8.4 ATB/DGAB No 0106 7 7.2 12 12.5 ATB/DGAB No 0107 4 4.4 8 7.9 PATB/DGAB Yes 0108 7 7 12 12.2 PATB/DGAB Yes 0109 7 7 16 16.1 PATB/DGAB Yes 0110 7 6.6 8 8.6 ATB/PATB Yes 0111 4 4.1 12 12.8 ATB/PATB Yes 0112 4 4.5 16 16.6 ATB/PATB Yes

A1-25 Data Availability Table A- 36 summarizes the available data for sections in Nevada. The distribution of data is uniform over the sections except for section 32-0101, which has the highest data frequency. Table A- 36 Data availability (No. of surveys) for SPS-1 Nevada sections Distress SHRP ID Cracking Rutting IRI FWD 0101 22 27 26 40 0102 7 11 9 6 0103 7 11 9 5 0104 7 11 9 5 0105 7 11 9 5 0106 7 11 9 5 0107 7 11 9 5 0108 7 12 9 5 0109 7 11 9 5 0110 7 11 9 4 0111 7 11 9 4 0112 7 11 9 5

A1-26 NEW MEXICO (35) Site Description The LTPP sections of New Mexico were built on U.S. 25 north of Las Cruces, NM, in 1995. The sections were constructed with AC shoulders. The inventory data is summarized in Table A- 37. The sections in the experiment design are 35-0101 through 35-0112 without any additional sections. Table A- 37 Inventory data for SPS-1 New Mexico sections Site code 35 Climate Dry-No-Freeze Average annual precipitation (mm) 290 Average annual freezing index (˚C-days) 5 Estimated Traffic (ESAL) 393,000 Subgrade soil Fine-grained Shoulder AC Construction Issues It was necessary to stabilize the top 8 inches of subgrade with 4% lime for all test sections, to facilitate construction. Upon completion of the stabilization, approximately 12-18 inches of the silty-clay subgrade material was used on top of the stabilized layer to bring the subgrade back to grade elevation. Site Status The thickness for each layer deviates more than 6 mm from the requirements for all sections except 35-0102 and 35-0108. The ATB mix did not meet the minimum requirements for stability and flow. The HMA did not meet the requirements for passing No. 4 sieve. Table A-38 summarizes the design features for the sections.

A1-27 Table A- 38 Design features for SPS-1 New Mexico sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0101 7 7.2 8 8.6 DGAB No 0102 4 4.8 12 12.2 DGAB No 0103 4 5.3 8 7.2 ATB No 0104 7 8.1 12 11.1 ATB No 0105 4 5.9 8 7.7 ATB/DGAB No 0106 7 7.6 12 10.9 ATB/DGAB No 0107 4 5.9 8 7.7 PATB/DGAB Yes 0108 7 7.8 12 12.2 PATB/DGAB Yes 0109 7 8 16 16.4 PATB/DGAB Yes 0110 7 7.9 8 8.3 ATB/PATB Yes 0111 4 4.9 12 11.3 ATB/PATB Yes 0112 4 5 16 14.8 ATB/PATB Yes Data Availability Table A- 39 summarizes the available data for sections in New Mexico. The distribution of data is uniform over the sections. Table A- 39 Data availability (No. of surveys) for SPS-1 New Mexico sections Distress SHRP ID Cracking Rutting IRI FWD 0101 6 9 4 3 0102 6 9 4 3 0103 6 9 4 3 0104 6 9 4 3 0105 6 9 4 3 0106 6 9 4 3 0107 6 9 4 3 0108 6 9 4 3 0109 6 9 4 3 0110 6 9 4 3 0111 6 9 4 3 0112 6 9 4 3

A1-28 OHIO (39) Site Description The LTPP sections of Ohio were built on U.S. 23 south of Waldo, OH, in 1995. The sections were constructed with AC shoulders. The inventory data is summarized in Table A- 40. The sections in the experiment design are 39-0101 through 39-0112 with two additional sections. Table A- 40 Inventory data for SPS-1 Ohio sections Site code 39 Climate Wet-Freeze Average annual precipitation (mm) 972 Average annual freezing index (˚C-days) 208 Estimated Traffic (ESAL) N/A Subgrade soil Fine-grained Shoulder AC Construction Issues In sections 39-0105 and 39-0108, the original embankment material placed was unsuitable. Embankment was removed and a new 4 feet fill was placed. Site Status The average HMA thickness for section 39-0110 and the ATB thicknesses for sections 39-0111 and 39-0112 deviate from the design by more than 6 mm. The HMA did not meet the gradation requirements for the No. 4 sieve. Table A- 41 summarizes the design features for the sections. Table A- 41 Design features for SPS-1 Ohio sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0101 7 6.9 8 8 DGAB No 0102 4 3.9 12 11.8 DGAB No 0103 4 4.1 8 8 ATB No 0104 7 7.2 12 11.8 ATB No 0105 4 3.7 8 7.7 ATB/DGAB No 0106 7 6.8 12 11.8 ATB/DGAB No 0107 4 3.8 8 8 PATB/DGAB Yes 0108 7 6.6 12 12 PATB/DGAB Yes 0109 7 7 16 15.9 PATB/DGAB Yes 0110 7 7.3 8 7.6 ATB/PATB Yes 0111 4 4 12 12.1 ATB/PATB Yes 0112 4 4 16 15.8 ATB/PATB Yes

A1-29 Data Availability Table A- 42 summarizes the available data for sections in Ohio. In general, the number of available data is not enough, with some variation over the sections. Table A- 42 Data availability (No. of surveys) for SPS-1 Ohio sections Distress SHRP ID Cracking Rutting IRI FWD 0101 1 2 2 2 0102 2 3 2 N/A 0103 4 6 6 5 0104 4 7 8 4 0105 3 4 3 4 0106 5 8 8 5 0107 2 3 2 N/A 0108 4 7 7 4 0109 4 7 7 4 0110 4 7 7 4 0111 4 7 9 3 0112 4 7 8 3

A1-30 OKLAHOMA (40) Site Description The LTPP sections of Oklahoma were built on U.S. 62 west of Lawton, OK, in 1997. The sections were constructed with AC shoulders. The inventory data is summarized in Table A- 43. The sections in the experiment design are 40-0113 through 40-0124 with two additional sections. Table A- 43 Inventory data for SPS-1 Oklahoma sections Site code 40 Climate Wet-No-Freeze Average annual precipitation (mm) 869 Average annual freezing index (˚C-days) 90 Estimated Traffic (ESAL) 280,000 Subgrade soil Fine-grained Shoulder AC Construction Issues The projects were constructed on a site where the earthwork had been done 10 years earlier. Most of the settlement of the earthwork may have occurred before the construction. The WIM equipment was installed at about 8 km (5 miles) from the sections. There are entrance and exit ramps between the WIM equipment and the actual sections. However, these ramps are not expected to significantly affect the truck traffic. Site Status The thickness for each layer deviates more than 6 mm from the requirements for all sections except 40-0116 and 40-0123. No The HMA had too much aggregate passing the No. 4 sieve. Table A- 44 summarizes the design features for the sections. Table A- 44 Design features for SPS-1 Oklahoma sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0113 4 4.5 8 7.9 DGAB No 0114 7 7.7 12 11.3 DGAB No 0115 7 7.5 8 9 ATB No 0116 4 4.2 12 11.7 ATB No 0117 7 7.8 8 8 ATB/DGAB No 0118 4 4.6 12 11.9 ATB/DGAB No 0119 7 7.5 8 8.3 PATB/DGAB Yes 0120 4 4.8 12 12.7 PATB/DGAB Yes 0121 4 4.2 16 16 PATB/DGAB Yes 0122 4 4.3 8 8.7 ATB/PATB Yes 0123 7 7.3 12 13.1 ATB/PATB Yes 0124 7 6.8 16 16 ATB/PATB Yes

A1-31 Data Availability Table A- 45 summarizes the available data for sections in Oklahoma. The distribution of data is uniform over the sections. Table A- 45 Data availability (No. of surveys) for SPS-1 Oklahoma sections Distress SHRP ID Cracking Rutting IRI FWD 0113 7 11 5 4 0114 7 11 5 4 0115 7 10 5 4 0116 7 10 5 4 0117 7 10 5 4 0118 7 10 5 4 0119 7 10 5 4 0120 7 10 5 4 0121 7 10 5 4 0122 7 11 5 4 0123 7 10 5 4 0124 7 10 5 4

A1-32 TEXAS (48) Site Description The LTPP sections of Texas were built on U.S. 281 north of McAllen, TX, in 1997. The sections were constructed with AC shoulders. The inventory data is summarized in Table A- 46. The sections in the experiment design are 48-0113 through 48-0124 with eight additional sections. Table A- 46 Inventory data for SPS-1 Texas sections Site code 48 Climate Wet-No-Freeze Average annual precipitation (mm) 561 Average annual freezing index (˚C-days) 1 Estimated Traffic (ESAL) 10,000 Subgrade soil Coarse-grained Shoulder AC Construction Issues Lime treatment was used in the subbase material for the first 10 sections. In addition, transverse drains were not installed for these sections. Site Status Table A- 47 summarizes the design features for the sections. Table A- 47 Design features for SPS-1 Texas sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0113 4 4.6 8 7.8 DGAB No 0114 7 6.8 12 12.2 DGAB No 0115 7 7.4 8 7.6 ATB No 0116 4 5.9 12 10.9 ATB No 0117 7 7.4 8 7.3 ATB/DGAB No 0118 4 4.8 12 10.3 ATB/DGAB No 0119 7 7.4 8 7.5 PATB/DGAB Yes 0120 4 4.7 12 11.4 PATB/DGAB Yes 0121 4 4.3 16 15.5 PATB/DGAB Yes 0122 4 4.6 8 8.8 ATB/PATB Yes 0123 7 5.3 12 12.2 ATB/PATB Yes 0124 7 6.4 16 15 ATB/PATB Yes

A1-33 Data Availability Table A- 48 summarizes the available data for sections in Texas. The distribution of data is uniform over the sections. Table A- 48 Data availability (No. of surveys) for SPS-1 Texas sections Distress SHRP ID Cracking Rutting IRI FWD 0113 7 9 8 5 0114 7 9 8 5 0115 7 9 8 5 0116 7 9 8 5 0117 7 9 8 5 0118 7 9 8 5 0119 7 9 8 5 0120 7 9 8 5 0121 7 9 8 5 0122 7 9 8 5 0123 7 9 8 5 0124 7 9 8 5

A1-34 VIRGINIA (51) Site Description The LTPP sections of Virginia were built on State Route (S.R.) 265 in Danville, VA, in 1995. The sections were constructed with AC shoulders. The inventory data is summarized in Table A- 49. The sections in the experiment design are 51-0113 through 51-0124 with one additional section. Table A- 49 Inventory data for SPS-1 Virginia sections Site code 51 Climate Wet-No-Freeze Average annual precipitation (mm) 1,142 Average annual freezing index (˚C-days) 38 Estimated Traffic (ESAL) N/A Subgrade soil Fine-grained Shoulder AC Construction Issues Hydraulic cement stabilization was used for the top 152 mm of the subgrade for all the sections. The SPS-1 guidelines required that the entire length of a test section be located in a cut or rill section, however, two sections, 51-0122 and 51-0113 had cut-fill transitions located inside them. Site Status Table A- 50 summarizes the design features for the sections. Table A- 50 Design features for SPS-1 Virginia sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0113 4 4 8 7.9 DGAB No 0114 7 7.2 12 11.9 DGAB No 0115 7 6.4 8 8.6 ATB No 0116 4 4.5 12 12.4 ATB No 0117 7 6.6 8 7.9 ATB/DGAB No 0118 4 4.1 12 11.4 ATB/DGAB No 0119 7 6.4 8 8.3 PATB/DGAB Yes 0120 4 4.1 12 12.1 PATB/DGAB Yes 0121 4 3.7 16 16.8 PATB/DGAB Yes 0122 4 3.9 8 7.8 ATB/PATB Yes 0123 7 6.5 12 12.2 ATB/PATB Yes 0124 7 6.3 16 15.9 ATB/PATB Yes

A1-35 Data Availability Table A- 51 summarizes the available data for sections in Virginia. The IRI data has the highest frequency; whereas other performance measures the data collection frequency is lower except for section 51-0113 and section 51-0114. Table A- 51 Data availability (No. of surveys) for SPS-1 Virginia sections Distress SHRP ID Cracking Rutting IRI FWD 0113 12 13 15 37 0114 14 17 23 45 0115 4 8 16 4 0116 4 8 16 4 0117 4 8 16 4 0118 4 8 16 4 0119 4 8 16 4 0120 5 8 16 4 0121 7 10 16 6 0122 4 8 16 4 0123 4 8 16 4 0124 4 8 15 4

A1-36 WISCONSIN (55) Site Description The LTPP sections of Wisconsin were built on S.R. 29 in 1997. The sections were constructed with AC shoulders. The inventory data is summarized in Table A- 52. The sections in the experiment design are 55-0113 through 55-0124 without any additional sections. Table A- 52 Inventory data for SPS-1 Wisconsin sections Site code 55 Climate Wet-Freeze Average annual precipitation (mm) N/A Average annual freezing index (˚C-days) N/A Estimated Traffic (ESAL) N/A Subgrade soil Coarse-grained Shoulder AC Construction Issues The construction report does not indicate any difficulties during construction. Site Status Table A- 53 summarizes the design features for the sections. Table A- 53 Design features for SPS-1 Wisconsin sections AC Thickness, in Base Thickness, in Section ID Design Actual Design Actual Base Type Drainage 0113 4 5.5 8 8 DGAB No 0114 7 8.1 12 11 DGAB No 0115 7 7.3 8 7.5 ATB No 0116 4 4.1 12 12 ATB No 0117 7 6.4 8 9.6 ATB/DGAB No 0118 4 4 12 14.1 ATB/DGAB No 0119 7 6.6 8 9.2 PATB/DGAB Yes 0120 4 3.9 12 13.5 PATB/DGAB Yes 0121 4 4.2 16 17.5 PATB/DGAB Yes 0122 4 4.5 8 9.7 ATB/PATB Yes 0123 7 6.8 12 15.9 ATB/PATB Yes 0124 7 7.1 16 11.7 ATB/PATB Yes

A1-37 Data Availability Table A- 54 summarizes the available data for sections in Wisconsin. The distribution of data is uniform over the sections but in general, not plenty. Table A- 54 Data availability (No. of surveys) for SPS-1 Wisconsin sections Distress SHRP ID Cracking Rutting IRI FWD 0113 3 5 7 2 0114 4 4 7 3 0115 3 4 6 3 0116 3 4 7 3 0117 3 4 7 3 0118 3 4 7 3 0119 3 3 7 3 0120 3 4 7 3 0121 3 4 7 3 0122 3 4 7 3 0123 3 4 7 3 0124 3 4 7 3

Next: Appendix A2: Site-Wide Performance Data for SPS-1 Experiment »
LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements Get This Book
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TRB’s National Cooperative Highway Research Program (NCHRP) Web Document 74: LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements examines the relative influence of design and construction features on the response and performance of new flexible and rigid pavements. According to the report, base type seems to be the most critical design factor in achieving various levels of pavement performance for both flexible and rigid pavements, especially when provided with in-pavement drainage. Subgrade soil type and climate also have considerable effects on the influence of the design factors. While the report supports the existing understanding of pavement performance, the methodology in the study offers a systematic outline of the interactions between design and site factors as well as new insights on various design options.

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