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Publication Number: FHWA-HRT-15-049 Date: April 2015

Publication Number: FHWA-HRT-15-049
Date: April 2015

The Long-Term Pavement Performance Program

INDEX

AASHO. See American Association of State Highway Officials.
AASHTO. See American Association of State Highway and Transportation Officials
AASHTOWare Pavement ME Design, 39, 208, 243
Abbott, Allan L., 259, 260, 262, 265
Abukhater, Basel, 27f, 30f
Accelerated Pavement Testing, 6, 63–64
Administration and management, LTPP
- centralized structure of, 231, 232
- challenges, 10, 30
- communication and coordination practices in, 26–30, 239–240
- of data collection and storage, 19–20, 23, 24, 133, 232
- under FHWA, 12, 19–26, 21f, 22f, 231, 232
- highway agency staff, 234
- key milestones in, 12b
- lessons learned from LTPP program, 231–234
- norms of operation, 232, 233f
- in origins of LTPP program, 7
- program performance reviews, 234–239
- regional offices, 12, 13f
- role of peer review groups in, 17–18, 25–26
- under SHRP, 12–18, 14f, 40, 231, 232, 257
- staff stability, 232
- in transitional period (1991 to 1992), 12, 18–19, 19f, 20b, 32b
Advisory Committee. See Pavement Performance Advisory Committee
Albright, David, 259, 261, 265
Almond, Roger, 259, 262
AMEC Environment & Infrastructure, Inc., 270, 274, 275
American Association of State Highway Officials (AASHO), 2, 102, 157, 159
American Association of State Highway and Transportation Officials (AASHTO), 25, 27, 121, 183, 218b, 234
- activities of, 37
- design guide, 250
- design procedures, 243
- equipment calibration standards, 89, 217
- in establishment of Strategic Transportation Research Study, 4
- financial support to LTPP program from, 37, 46, 53
- as LTPP partner, 35, 37, 38f
- in LTPP product development, 205, 211, 212, 235
- in LTPP program performance reviews, 235, 236
- Materials Reference Laboratory, 92
- materials testing standards, 126, 177
- in origins of LTPP program, 3, 6, 37, 257
- pavement profiler standards, 212
- pavement smoothness specification, 213
- Task Force on Strategic Highway Research Program, 6
- in transition of LTPP program from SHRP, 18
American Association of State Highway Officials, 2, 102, 157, 159
American Automobile Association, 41
American Concrete Pavement Association, 41
American Society of Civil Engineers, 41, 204
American Society of Testing and Materials, 99, 104, 218b, 220
American Trucking Association, 41
America’s Highways, Accelerating the Search for Innovation, 4
Ames Engineering, Inc., 100, 100f, 101f, 272, 281
Ancillary Information Management System
- Current content of, 132, 147t, 245b
- Data Entry Portal, 139–141
- data storage, 136, 147–148
- location of, 141
- objective of, 147, 245b
- online access, 154
- origins and evolution of, 134
Anderson, Paul, 260
Anderson, Virgil, 64f
Andrei, Radu, 19f
Angelou, Maya, 230b
Annual meetings, LTPP program, 27
Applied Research Associates, Inc., 272, 273, 275
ARAN survey vehicle, 7
Ardani, Ahmad, 192f, 264
Arellano, Janice, 260, 262
Arizona Department of Transportation, 72b, 200, 214
Armaghani, Jamshid, 264
Asphalt
- SHRP research program, 5b, 12–13, 32
- thickness measurement, 83–84
Asphalt concrete pavement
- General Pavement Studies of, 66–68, 74t
- Specific Pavement Studies of, 71–72, 74t
Asphalt Institute, The, 41
Asphalt Recycling and Reclaiming Association, 41
Asphalt Research Consortium, 88
Assaf, Gabriel, 266
Association of Asphalt Paving Technologists, 41
ASTM International, 99, 104, 218b, 220
Augustin, Harold, 266
Austin Research Engineers, Inc., 270
Automated vehicle classification, 174
Automated weather stations, 80–82, 80f, 81f, 144, 167, 172, 173, 177, 277–278
Average annual daily traffic, 106–107
Ayers, Michael E., 192f, 260, 262

Baker, Cindy, 19f
Baker, Thomas E., 192f, 262, 264
Baladi, Gil, 192f, 266
Baltimore FHWA Resource Center, 96
Barksdale, Richard D., 259
Barnhart, Ray A., 259
Barrett, Marsha, 19f
Basin tests, 89
Bellinger, William, 19f, 30f, 255b, 262
Benkelman Beam, 7
Benson, Paul E., 260, 263, 266
Berentson, Duane, 258, 259
Berge, Calvin, 19f, 270
Berge, Richard L., 261
Bertrand, Carl, 260, 262
Bianchini, Allesandra, 266
Binder selection, 200, 208
Blaschke, Byron, 259
Block, Edgardo, 27f
“Blue Book.” See Strategic Transportation Research Study
Bonaquist, Ramon, 264
Braun Engineering Testing, 273
Braun Pavement Technology, 270, 271
Brent Rauhut Engineering, Inc., 270, 271, 275
Briggs, Robert C., 260
Broad Agency Announcement, 191, 199, 275
Brosseau, Kathy, 19f
Brown, James L., 259, 260
“Brown Book.” See Strategic Highway Research Program Research Plans, Final Report (1986)
Browser program, 135, 136f
Buchbinder, Brenda, 19f
Bush, Albert J., III, 259, 260

Cable, James K., 260, 262, 264, 265
California LTPP National Meeting (1996), 27, 235–236
Calvin, Lyle, 260
Campaign for Program Improvement, 236–237
Campbell Scientific, Inc., 118, 278, 284, 285
Canada, in origins of LTPP program, 3
Canadian Climate Center, 82
Canadian Strategic Highway Research Program, 35, 37–39, 46–47, 257–258
Carmer, Samuel G., 260
Carr, Bill, 19f
Carver, Gary S., 262
Cebon, David, 122f, 265
Cement
- SHRP research program, 5b, 13
- testing responsibilities, 17
Center for Experimental Research and Studies of Building and Construction (France), 7
Central Traffic Database, 148, 157
Chandran, Ravi, 27f
Chatti, Karim, 192f, 266
Chen-Northern, 273
Chloride corrosion, 5b
Christison, Tom, 259, 261
Churilla, Charles J., 33f, 192f, 255b, 259, 262
Cimini, Gabe, 30f
Clark, Tommy, 30f
Clevenger, Robert L., 259
Climate
- data collection from weather stations, 80–83, 80f, 81f, 82f
- data collection quality control, 175
- data storage, 144, 150, 150f
- LTPP data collection program, 1, 77, 212
- SHRP research objectives, 5b
- See also Frost/thaw effects; Seasonal Monitoring Program; Weather stations
Cochran, George, 264
Cold Regions Research and Engineering Laboratory, 283, 284
Cole, Lawrence W., 260, 262, 263
Collier, Donald W., 258
Collins, Ronald, 259, 262
Colorado Department of Transportation, 200
Colorado Mid-Course Assessment Meeting (1990), 27, 234–235
Communication and coordination
- accomplishments of LTPP program, 26
- feedback mechanisms, 182–183, 215–216
- with international community, 42, 252
- lessons learned from LTPP program experience, 239–240
- LTPP Norms of, 232, 233f
- mechanisms for, 27–30
- Webinars, 28–29, 29b, 216
- See also Data dissemination
Computed parameters, 83, 145–147, 198
Concrete and Aggregates Association, 41
Concrete bridge component protection, 5b, 13
Concrete Pavement Evaluation System, 4
Connecticut Department of Transportation, 27f
Connor, Billy G., 260
Contract services
- Communication among LTPP program partners, 27, 28, 29–30
- for data analysis, 275
- for data collection equipment, 271–272
- for data storage and dissemination, 274
- under FHWA, 20–25, 22f
- key milestones in LTPP management, 12b
- for materials collection and testing, 89, 273–274
- onsite support, 271
- for pavement-related data collection, 78–79, 89, 93–94
- peer review, 269–270
- in pre-implementation of LTPP program, 5–6, 13
- scope of, 269
- under SHRP, 17
- for technical support, 270
- for traffic data collection, 272–273
- in transition period, 18
- See also Regional contracts; Regional support contractors; Technical assistance contractor; Technical support services contractor
Copeland, Charles, 266
Corley-Lay, Judith, 192f, 260, 262, 263, 264, 265
Cornell University, 92, 272
Cox, Brian, 19f, 266
Crack sealing and filling, 191, 209, 210
Crumb Rubber Modifier Project, 88
Cumberledge, Gaylord, 260, 263
Cumberledge, Gramling and Hunt, 93, 272
Cunagin, Wiley, 265
Curl and warp, 214
Curvimeter, 7

Dabberdt, Walter, 261
Dahlin, Curtis, 265
Daleiden, Jerome, 30f, 266
Dalrymple, Harold, 260
Darter, Michael, 266
Data analysis
- accomplishments of LTPP program, 189
- Contracts, 275
- Expert Task Group, 263
- under FHWA Broad Agency Announcement, 191
- future plans for, 250–251
- goals of Program Improvement Campaign, 236–237
- highway agency studies, 199–203
- International Data Analysis Contest, 204, 204f
- key findings from, 216
- key milestones of LTPP program, 189–190b
- Mechanistic-Empirical Pavement Design Guide, 203
- objectives of, 189–190, 216–217, 244–245, 250
- in product development, 204, 231
- to reduce variability in test results, 218b
- under SHRP, 190–191
- strategic plan, 191–199, 193f, 194f, 195–197f, 199t, 250
- tablecloth, 194
- Transportation Research Board Data Analysis WorkGroup, 28, 203, 250, 257, 266
Data Analysis/Operations Feedback Report, 176, 180, 182, 183f
Database, LTPP
- accomplishments of, 131, 159, 183–184, 189, 217, 243
- backup procedures, 158, 158t
- climate data, 150, 150f
- computed parameters in, 145–147
- current content of, 132–133, 159, 245b
- custom extractions from, 153
- data dissemination rules and procedures, 134–135, 134f, 136–137, 136f
- data dissemination tools, 215
- Data Entry Portal, 139–141
- data sources for, 133
- effects of budget cuts on development of, 56
- estimated spending on, 47–48
- evolution of technology for, 240
- evolution under FHWA, 135–141
- evolution under SHRP, 133–135, 134f
- Expert Task Group on development and operations of, 263
- falling weight deflectometer data, 148–149, 148f
- future opportunities for use of, 252–253
- goals of Program Improvement Campaign, 236–237
- growth in volume of, 148–151
- higher order data checks, 178–180
- information management system. See Information Management System
- international contest to promote use of, 41
- key milestones in development of, 132b
- Level E data, 24, 134–135, 136, 137, 148, 175–176
- longitudinal profile data, 149, 149f
- major components, 132. See also specific component
- management responsibilities, 19–20, 23, 24, 133, 176
- modules, 79, 79t. See also specific module
- objectives, 7–8, 54–55, 131, 215, 244
- ongoing and projected improvements to, 245b, 246–247
- as online system, 139–141
- pavement distress data in, 149–150, 150f
- pavement performance data in, 144–147
- pilot study, 3–4, 5
- process flow, 136f, 138f, 140f
- quality assurance audits, 177–178
- quality control checks and reviews, 175–176
- recent evolution of, 139–141
- records management, 134
- security, 157–158, 159, 246
- Software Performance Report, 144
- Standard Data Release, 137, 153
- test section construction number in, 136
- transverse profile data, 150, 150f
- user support, 247
- See also Data collection; Data dissemination
Data collection
- accomplishments of LTPP program in, 108, 114, 219, 220, 243
- attention to ambient conditions in, 170–171
- beginnings of LTPP, 89b
- categories, 77, 79f
- challenges, 76, 108
- database modules, 79, 79t. See also specific module
- data elements and types in, 79
- on dynamic load response, 83
- effects of budget cuts on, 52–53, 55
- equipment, 168t, 217–218
- equipment contracts, 271–272
- estimated spending on, 47–48
- federal programs and initiatives benefiting from LTPP, 219–220, 252
- forensic studies, 127–128
- forms, 165
- goals of Program Improvement Campaign, 236–237
- ground penetration radar measurements, 83–84
- inventory of experimental sections, 84–85
- key milestones in, 78f
- library resources, 156–157
- in Long-Term Pavement Monitoring Study, 4
- LTPP program objectives for, 7–8, 11, 77–78, 80, 244
- in LTPP under SHRP, 15–16
- on maintenance and rehabilitation, 85–87
- materials, 87–89
- participants in, 78–79
- pavement performance, 247–250
- practices before LTPP, 3, 4
- product development and, 235
- qualifications of personnel for, 167–168
- regional approach, 12
- role of regional coordination office contractors in, 16
- role of regional support contractors in, 23–24, 133, 135, 170
- role of technical assistance contractors in, 20–23
- special programs and data sets, 79, 115, 116b. See also
- specific program or data set
- standards and guidelines, 164–165, 166t
- at weather stations, 80–83, 80f, 81f, 82f
- See also Database, LTPP; Data dissemination; Monitoring data module; Quality assurance/quality control; Traffic data collection
Data Dictionary, 215
Data dissemination
- Contracts, 274
- Cost of access, 153
- Federal policy and guidelines for, 151–152
- key milestones in LTPP program, 132b
- from LTPP database, 136–137
- LTPP library access, 156–157
- LTPP program communication and coordination practices, 26–30
- LTPP program objectives for, 1, 151
- major releases of LTPP data, 152t, 153
- online access, 139–141, 154–155, 157, 215
- quality control policy in, 153, 176
- role of Customer Support Service Center, 155–156
- under SHRP, 134–135, 134f, 136f
- Standard Data Release, 137, 153, 215, 251
- tools for, 154–155, 215
Datalogger, CSI, 118, 278, 283, 284
Data Operations Analysis Feedback Report, 135
DataPave, 154, 215, 274
Data Quality Act, 151, 152, 153f
Data studies, 178, 179–180
Data User’s Guide, 23
Dawood, Danny, 192f, 264
Decker, Dale S., 262
Deen, Thomas B., 259
Deflection equipment and testing
- calibration standards, 89
- data storage, 145
- equipment comparison studies, 6–7
- evolution of, in LTPP program, 89
- Expert Task Group, 260
- management responsibilities, 21, 24
- objectives of LTPP program, 89
- See also Falling weight deflectometer
DeFrain, Leo, 260
de Groot, Morris, 260
Dell’Acqua, Gianluca, 266
Dempsey, Barry J., 261
Department of Transportation, U.S., 151–152, 219
Design, pavement
- contributions of LTPP program to, 243
- LTPP product development for, 207–210
- practices prior to LTPP, 2
- research goals of LTPP, 1, 7
Dietrich, Bruce, 264
Dipstick® measurements, 99, 100–101, 101f, 104–105
Distress Identification Guides, 210, 211f
Distress Identification Manual, 94, 96, 210, 217, 251, 260
Distress Identification Manual for the Long-Term Pavement Performance Program, 165, 166
Distress surveys
- accreditation of raters for, 167
- comparison of technologies for, 6–7
- consolidation studies of data from, 180
- data analysis studies, 200
- data collection equipment contracts, 271–272
- data collection manual, 210
- data storage, 145, 149–150, 150f, 246
- Expert Task Group on Automated Distress Identification, 260, 262–263
- Film Motion Analyzer, 95, 95f
- management responsibilities, 16, 20–21
- manual, 95–97, 217
- maps, 94, 94f
- office reviews of, 97–98
- photographic, 17, 93–95, 271–272
- purpose of, 93
- quality control and assurance checks in, 95, 172–173, 177
- time-series review of, 179
- variability studies of data from, 180, 199
Distress Viewer and Analysis software, 98, 98f, 179, 179f
Distress Viewer and Analyzer, 95
Donahue, John, 192f
Doré, Guy, 259, 263, 264
Dougan, Charles E., 259, 262
Drainage, 98, 145
Dumont, A. G., 266
Dynaflect, 7
Dynamic cone penetrometer, 88
Dynamic load response, 83, 144
Dynamic Load Response Program, 51
Dynamic modulus, 198, 208–209
Dynatest, 7, 91, 92, 93, 272, 278, 279

EBA Engineering, Inc., 271
ECOMPEX, 271
Edwards, William, 260
Effects of Multiple Freeze Cycles and Deep Frost Penetration on Pavement Performance, 214
Eijberson, Marc, 263
Elkins, Gary, 30f, 192f
El-Korchi, Tahar, 192f, 260, 263, 265
Engineering & Software Consultants, Inc., 271
Environmental data
- Expert Task Group, 261
- LTPP products for collection of, 214
- See also Climate; Seasonal Monitoring Program; Weather stations
Environment Canada, 175
Epps, Jon, 192f, 260, 263, 264
Equipment
- contracts, 271–272
- distress survey, 6–7
- Expert Task Group, 260
- management responsibilities, 17, 24
- needs of LTPP program, 277
- quality control and quality assurance program, 168–170
- in Seasonal Monitoring Program, 283–285
- traffic data collection, 107–108
- See also Automated weather stations; Falling weight deflectometer(s); Profiling equipment
ERES Consultants, 271, 275
Esch, David, 19f
Evaluation of Pavement Deflection Measuring Equipment, 7
Expansive soils, 116
Experiments, pavement
- accomplishments of LTPP program in, 75
- benefits of ongoing data collection, 248t
- current state of original, 248
- data storage, 145
- development of, in LTPP program, 63–64
- Expert Task Group on design and analysis, 260
- future of, 249–250
- key milestones in design of, 64b
- objectives of, 1, 63
- significance of, in LTPP program, 63
- See also General Pavement Studies; Test sections; Test sites; Specific Pavement Studies
Expert Task Group(s)
- on Automated Distress Identification, 262–263
- on Database Development and Operations, 263
- on Deflection Testing and Backcalculation, 260
- on Distress and Profile Data Collection and Analysis, 262–263
- on environmental data, 261
- on Equipment Evaluation, 260
- on Experimental Design and Analysis, 260
- on Falling Weight Deflectometer Data Collection and Analysis, 264
- on LTPP Automated Distress Identification, 260
- on LTPP Data Analysis, 191–192, 263
- on Materials Data Collection and Analysis, 264
- membership and scope of, 17–18, 25–26, 257–258
- on Product Development and Delivery, 264
- reduction in number of, 239
- role of, 17, 165
- on Special Activities, 36f, 265
- on State Usage of LTPP Data, 264
- technical areas supported by, 258t
- on Traffic Data Collection and Analysis, 237, 264–265, 265
- on traffic data collection and analysis, 261
- on weigh-in-motion technology, 261

Falling weight deflectometer(s), 90f
- automated temperature data logger, 280, 281f
- buffers, 279
- calibration centers, 17, 92, 272
- calibration program, 169, 211
- calibration schedule, 92–93
- calibration standards, 217
- database, 148–149, 148f
- data collection procedures and equipment, 16, 90–91
- data studies, 180
- equipment comparison, 6–7
- equipment contracts, 272
- equipment maintenance, 91, 279
- equipment purchases, 278, 280t
- error-checking, 171–172
- Expert Task Group on data collection and analysis, 264
- manuals, 93
- meetings, 93
- purpose of, 89
- quality assurance audits of test data, 177
- quality control checks, 91, 173, 280
- temperature effects, 116, 279
- User Group, 28
Federal-Aid Highway Program, 4, 48, 56
Federal Highway Administration (FHWA), 27, 35, 96
- in data analysis program, 191, 192, 194, 198, 199
- in development of LTPP research program, 70, 80
- financial support for LTPP from, 45–46
- Information Quality Initiative, 152
- in LTPP management, 11, 12, 17, 19–26, 21f, 22f, 29, 41, 231, 232, 257
- LTPP program performance assessments, 236–238
- materials research in, 63
- moisture probe developed by, 118
- Office of Highway Planning, 4
- Office of Infrastructure Research and Development, 19
- Office of Pavement Technology, 205
- Office of Research and Development, 4
- in origins of Long-Term Pavement Monitoring Study, 3, 4, 5
- in origins of LTPP, 3, 6, 8, 258
- Pavement Condition Monitoring Methods and Equipment Study, 6–7
- publication standards, 181
- staff loaned to SHRP and LTPP, 15
- transition of LTPP from SHRP to, 5–6, 18–19, 269–270
Ferne, Brian Walter, 266
Ferragut, Ted R., 259, 262
FHWA. See Federal Highway Administration
Financing
- for data analysis, 194, 198, 198t
- for data dissemination, 153
- distribution of LTPP spending, 47–48
- estimated costs of infrastructure replacement and rehabilitation, 2
- Federal-Aid Highway Program, 56
- federal investment in LTPP to date, 45, 46t, 58
- fluctuations in LTPP funding levels, 12, 48–56, 48f, 58, 231–232
- for forensic studies, 127
- highway agency contributions to, 234
- highway spending, 2
- initial LTPP price tag, 2
- lessons learned from LTPP program, 231–232
- LTPP program’s return on investment, 1–2, 44, 219–220
- for product development, 205
- SHRP, 4, 11, 46, 48
- sources of LTPP’s, 45–47, 47t, 48f
- of Specific Pavement Studies, 73
- support from AASHTO to LTPP program, 37, 46, 53
- Traffic Data Collection Pooled-Fund Study, 122, 238
Fletcher, Leland, 259
Flexible pavements, 203
Flom, Ewa, 264
Folsom, Ralph, 265
Forensic studies, 127–128, 249, 252
Forsyth, Raymond A., 259
Framework for LTPP Forensic Investigations, 127
Francois, Francis B., 258, 259
Franta, Daniel, 204f
Freeman, Donald H., 262
Friction studies, 89, 99, 145
Frost/thaw effects, 116, 117, 120, 121, 214, 285
Fugro Consultants, 271
Fugro Roadware, 271, 275
Fulmer, McRaney, 259
Future challenges and opportunities
- collecting pavement performance data, 247–250
- database maintenance and improvement, 245–247
- development of pavement performance standards and measures, 243
- forensic studies, 249
- LTPP objectives, 244–245
FWDCheck, 91
FWDScan, 91

Gardner, Mark, 30f, 192f
Gendell, Dave, 259
General Pavement Studies, 6, 64–65
- benefits of ongoing data collection, 248t
- current state of original experiments, 248
- data collection in, 79
- design criteria, 65b
- evolution of, 66–68, 67t
- experiments, 8, 8t, 65–66, 74t
- inventory data, 84–85
- lack of historical data for early, 230
- limitations of, 65
- management structure and responsibilities for, 15, 49
- materials sampling in, 87–89
- purpose of, 63, 64
- research matrices, 65, 66f
- sampling template, 68, 69f
- Specific Pavement Studies and, 69
- test sections, 65b, 68–69, 74f
- traffic data, 106
German, John, 64f
GERPHO survey vehicle, 7
Gillmann, Ralph, 265
Global positioning technology, 85
Goode, Mark G., 259
Goodman, Steve, 263
Gramling, Wade, 259
Green, Ed, 265
Green, Roger, 260, 263
Griffith, John, 261
Groeger, Jonathan, 30f, 192f
Ground penetrating radar, 17, 83–84, 145
Guide for Mechanistic-Empirical Design of New and Rehabilitated Pavement Structures, 189
Guide for the Design of New and Rehabilitated Pavement Structures, 203, 207
Guide for the Design of Pavement Structures, 250
Guide to LTPP Profiler Comparison Resource, 101
Guide to LTPP Traffic Data Collection and Processing, 107–108
Guinn, Bob, 260
Gulden, Wouter, 260, 263
Gupta, Kris, 19f, 255b, 265

Haas, Ralph, 36f, 64f, 192f, 262
Hadley, William O., 266
Hager, Guy, 19f
Hajek, Jerry, 192f, 265
Hall, James P., 260
Hallin, John P., 259, 260, 264
Hamrick, John, 265
Hanna, Amir, 19f, 192f, 262, 266
Hansen, Kent, 260, 263
Harley, Thomas, 27f
Harm, Eric, 263
Harrigan, Ed, 19f
Harriott, Don, 19f
Hawks, Neil, 19f, 20f, 32b, 192f, 255b, 259, 262, 266
Heanue, Kevin, 259
Hegmon, Rudolph R., 260
Heitzman, Mike, 192f, 264, 265
Henion, Lloyd, 261
Hensing, David J., 259
Hibbs, John, 19f
Hicks, R. G., 259
Higher order data checks, 178–180
Highway Economics Requirement System, 219
Highway Performance Monitoring System, 219, 246, 252
Highway Research and Development Program, 56, 57b
Hill, Loren, 260, 262
Hill, Sonya, 260
Hoffman, Gary, 26f, 262
Holman, Frank K., Jr., 260
Horosko, Andrew, 265
Hosang, John R., 262
Hot-mix asphalt pavements, 127, 128, 170–171, 191, 246
Houska, Ronald W., 259
Hryhorczuk, Boris, 259
Hu, Pat, 26f, 122f, 262, 265
Hudson, W. Ronald, 259
Hunter, Robert N., 258, 259
Hutchinson, Bruce, 265

ICC Profiler, 100, 100f
iENGINEERING Corporation, 274
Improved Methods and Equipment to Conduct Pavement Distress Surveys, 7
Indirect tensile strength, 151f
Industry groups, 35, 41
Inertial profiler, 99–101
InfoPave Website, 105, 148, 154–155, 155f, 156f, 215, 274
Information Management System, 22, 23, 30, 41
- backup procedures, 158, 158t
- components, 132
- contracts, 17, 20, 274
- development of, 133–141
- hardware and software, 141–144, 142t, 143f
Infrared scanning, 247
Ingberg, Dick, 19f, 270
Innovative Materials Development and Testing, 191
Innovative Pavement Research and Deployment Program, 46
Interim Guide for Design of Pavement Structures, 40
Intermodal Surface Transportation Efficiency Act, 18, 19, 45, 46, 50–51, 50b, 50t
International Cybernetics Corporation, 272
International Data Analysis Contest, 204, 204f
International Grooving and Grinding Association, 41
International Road Dynamics, Inc., 273
International Road Federation, 42
International Roughness Index, 100, 172
Inventory data, 84–85, 105–106, 145
Irick, Paul E., 259
Irwin, Lynne, 192f, 239b, 263
Iwasaki, Randy, 26f, 262

Jackson, Newt, 192f, 259, 260
Jackson-Grove, Amy, 27f
Jämsä, Heikki, 263, 266
Jarema, Frank, 265
Jaskaniec, Mike, 259
Jessberger, Steve, 192f, 265
Jiang, Jane, 30f, 192f, 255b, 265
Johnson, Andy, 192f, 263, 264, 265
Johnson, Cindy, 19f
Jones, Harry, 19f
Jordan, P. G., 260
Jorgenrud, W. H., 259
Joubert, Robert, 259

K. J. Law, 272, 281
Kamiya, Keizo, 19f, 266
Kansas Department of Transportation, 200
Kashuba, Ed, 265
Kass, Said, 264
Kavanagh, Leonnie, 263
Kazakov, Alex, 260
Kelley, Bob, 19f
Kenis, William J., 260
Kent, Perry, 261
Kerali, Henry G. R., 262, 263, 266
Kilareski, Walter P., 260
Kim, Richard, 264
Kissane, Colleen, 260, 262
Klemunes, John, 255b
Knutson, Marlin J., 259
Kramer, James, 122f, 265
Kuab FWD, 7
Kulash, Damian, 19f

Laboratory Materials Testing and Handling Guide, 218b
Laboratory Testing Guidelines, 87
Lamm, Lester P., 259
Lamond, Joe, 19f
Larsen, Donald, 260, 262
Larsen, Hans Jorgen Ertman, 259
Larson, Charles, 260, 262
Larson, Roger M., 260
Larson, Thomas D., 258, 259
Laser Road Surface Tester, 7
La Torre, Francesca, 266
LAW Engineering, 270, 273, 274
Lawrence, Anthony, 266
Lawson, Catherine T., 36f, 265
Laylor, Marty, 19f
Leahy, Rita, 19f, 259
Leben, Bojan, 266
LeClerc, Roger, 259
Lee, Kang-Won Wayne, 266
LENDIS Corporation, 271
Lenz, Russel W., 262
Leonardo, Joseph M., 262
Lessons Learned and Recommendations for Future Analyses, 190
Lill, Richard A., 259, 260
Little, Vondell, 19f
Litzka, Johann, 266
Load transfer tests, 89
Loaned staff program, 13, 14f, 15, 15b, 20, 39, 42, 46
Lofroos, William N., 259, 265
Longitudinal profile data, 99–102, 145, 149, 149f
Long-Term Bridge Performance program, 219, 252
Long-Term Pavement Monitoring Study, 5, 8
- Data Collection Guide, 4
- objectives of, 3–4
- origins of, 3
Long-Term Pavement Monitoring Workshop, 4, 6
Long-Term Pavement Performance Committee, 25–26, 258, 258t
- current activities and organization, 261–262
- Expert Task Groups, 261–265
- purpose, 261
Long-Term Pavement Performance Data Analysis Program, 244
Long-Term Pavement Performance Maintenance & Rehabilitation Data Collection Guide, 86
Long-Term Pavement Performance Manual for Profile Measurements and Processing, 165
Long-Term Pavement Performance program
- costs, 2
- customer Support Service Center, 124, 133, 155–156, 181, 215–216
- distribution of spending, 47–48
- documentation of activities of, 240, 245b
- federal investment in, to date, 45, 46t
- funding sources, 45–47, 47t, 48f
- future challenges and opportunities, 243–253
- goals and objectives, 1, 7–8, 229
- key findings from, 216
- legislative authorization, 19, 45, 46t, 47t, 48–56
- lessons learned from, 229–241
- management. See Administration and management, LTPP
- origins and evolution. See Origins and evolution of LTPP
- partnerships. See Partnerships, LTPP
- periodic performance assessments, 234–239
- products. See Products, LTPP
- return on investment in, 1–2, 44
- significance of, 1
- sources of success, 11, 26, 29, 35, 75
Long-Term Pavement Performance Project Laboratory Materials Testing and Handling Guide, 87
López, Aramis, 19f, 26f, 27f, 30f, 33f, 192f, 255b, 262, 265
LTPPBind, 200, 208
LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements, 83
LTPP Guide to Asphalt Temperature Prediction and Correction, 191
LTPP Information Management System User Guide, 145
LTPP Manual for Falling Weight Deflectometer Measurements, 165
LTPP Manual for Profile Measurements and Processing, 165
LTPP Optimal Weigh-in-Motion Locator software, 213–214
LTPP Pavement Analysis Forum (2010), 27, 40
LTPP Pavement Loading User Guide, 214
LTPPStar, 209
LTPP Traffic Analysis Software, 124, 125f, 174
Lytton, Bob, 192f, 266

MacCreary, William J., 259, 262
MACTEC Engineering and Consulting, Inc., 270, 273, 274
Magnetic tomography, 247
Mahoney, Joe P., 260
Maina, James William, 266
Maintenance and rehabilitation of pavements
- data analysis, 202
- data collection, 85–87
- data storage, 145
- General Pavement Studies of, 66–68, 69
- LTPP products for, 209–210
- management responsibilities, 16
- planned studies, 250
- practices prior to LTPP, 3
- research goals of LTPP, 1, 7
- research objectives of SHRP, 5b
- SHRP data analysis projects for, 191
- Specific Pavement Studies of, 73, 74
Manual for Profile Measurement: Operational Field Guidelines, 102
Marcuson, Joel, 259
Markow, Michael, 260
Mason, Robert L., 260, 266
Materials
- contracts for collection and testing of, 273–274
- data storage, 150–151, 151f
- Expert Task Group on data collection and analysis, 264
- in LTPP data collection program, 77
- research goals of LTPP, 1, 7
- sample and data collection, 87–89
- sampling and testing, 24
- SHRP research objectives, 5b
- testing contracts, 24
Materials Action Plan, 30, 78, 125–127, 238
- accomplishments of, 128
- laboratories, 126
- origins of, 125
- procedures, 125–126
- purpose of, 115, 125
Materials Reference Laboratory, 92, 211, 272
Materials Reference Library, 17, 18–19, 88, 95, 128, 245b, 246, 252, 273–274
Materials Sampling and Testing Guidelines, 87
Mathis, Amelia, 192f
Maupin, Bill, 263
McCall, Billy M., 261, 265
McClure, Karen, 263
McCullagh, Frank R., 259
McDaniel, Mark, 264
McDaniel, Rebecca, 36f, 192f, 264, 265
McDonnell, Anne-Marie, 27f, 122f, 265
McDonnell, Jim, 262
McGhee, Kenneth H., 259, 260
McNeil, Lisa, 19f
McQuiston, Robert, 260
Measurement Research Corporation, 283
Mechanistic-Empirical Pavement Design Guide, 79, 124, 194, 202, 203, 219, 243, 246, 250
Meetings, 27–30
- budget cuts and, 239
- falling weight deflectometer operator, 93
- LTPP program performance assessments, 234–239
- Pavement Analysis Forum, 192–194, 192f
- Transportation Research Board Data Analysis Work Group, 203
Mendez, Victor M., 255b, 262
Mergenmeier, Andy, 192f
Merwe Steyn, Wynand Jacobus van der, 266
Meyer, Frank, 27f, 30f, 192f
Michael, Harold L., 258
Michigan Transportation Research Institute, 102
Mikulin, Robert L., 260
Miller, Samuel, 264
Minnesota Department of Transportation, 200–202
MnROAD, 100, 101, 170f, 201–203
MOBILFIELD software, 120
Modern Era-Retrospective Analysis for Research and Applications, 82, 212, 219–220
Mohammad, Louay N., 266
Monismith, Carl, 192f, 260, 262
Monitoring data module, 145
- data categories, 89
- deflection studies, 89–93
- distress surveys, 93–98
- drainage studies, 98
- friction tests, 99
- longitudinal profile data, 99–102
- origins and evolution of, 89
- rutting data, 102
- transverse profile data, 103–105
Monroney, Harold W., 259
Moore, Ray, 192f, 259, 260, 262, 263
Moravec, Michael, 255b, 264
Moreland, Thomas D., 258
Morgan, Richard D., 259, 262
Moving Ahead for Progress in the 21st Century, 45, 56, 57b, 57t, 243
Moyer, William R., 259
Murphy, Daniel T., 258
Murphy, Michael, 263
Murray, Carol A., 262
Myre, Jostein, 266

Narsiah, Juliet, 19f
National Academy of Sciences, 11, 17
National Aeronautics and Space Administration, 82, 147, 212
National Asphalt Pavement Association, 41
National Center for Asphalt Technology, 88
National Climatic Data Center, 82, 175
National Cooperative Highway Research Program, 37, 194, 198t, 258
National Research Council, 11, 12, 17, 25, 30, 35, 40, 257, 269–270
National Stone, Sand, and Gravel Association, 41
Nelson, Richard J., 260
Neukam, Tom, 261
Newcomb, David E., 259, 262, 264
New Jersey Department of Transportation, 202
New York State Department of Transportation, 117
Nichols, Andrew, 122f, 265
Nichols, Brooks, 259
Nichols, Frank P., Jr., 259
Nichols Consulting Engineers, Chtd., 270, 271, 274
Nieves, Antonio, 255b, 264
Nikolaides, Athanassios Fotios, 266
North American Travel Monitoring Exhibition and Conference, 28
North Dakota Local Technical Assistance Program Center, 96
Noureldin, Ahmed Samy, 266
Novenski, George, 265

Office of Highway Planning, 3, 4
Olds, John R., 260
Online access to LTPP data, 139–141, 215
ONSFIELD software, 120
Onsite support contracts, 271
Operational Problem Report process, 165, 182
Ordway, William A., 258
Origins and evolution of LTPP, 1–2
- challenges in, 229–231
- events and circumstances leading to, 2–3, 8
- expectations for rapid product development in, 231
- initial funding, 2, 46
- lack of historical data for early research, 230–231
- leaders in, 32–33f
- legislative actions in, 3
- major preliminary studies and pilot programs, 3–5, 6–7, 8
- milestones, 2
- organizational structure and operations, 7, 12–26
- original Advisory Committee, 6
- participation in, 3, 8, 257, 258
- research plans, 6, 8
- transition planning and execution, 5–6, 18–19
Ormesher, Daris, 260, 262
Orr, David, 192f, 263, 265
Ostrom, Barbara, 36f
Overlay
- data analysis studies, 202–203
- data collection, 86, 89
- General Pavement Studies of, 66–68
- Specific Pavement Studies of, 70f, 73
Owusu-Antwi, Emmanuel, 266

Pacific Aerial Survey Company, 93–95
Pagán-Ortiz, Jorge, 26f, 255b
Page, Richard S., 258
Pagen, Charles A., 259
Pan-American Institute of Highways, 42
Paniati, Jeff, 255b
Papagiannakis, A. Thomas, 266
Papet, Louis M., 259
Parker, Neville, 263
Parker-Smith, Carliss, 19f
Partnerships, LTPP
- benefits of, 34, 35, 42
- future prospects for, 252
- with international community, 42, 252
- primary partners, 34, 35, 37–42. See also specific organization
- with private sector stakeholders, 41
- scope of, 34, 35, 257–258
PASCO ROADRECON survey vehicle, 7, 93, 94, 94f, 103–104, 103f
PASCO USA, 272
Paterson, William D. O., 260, 266
Pavement Condition Monitoring Methods and Equipment Study, 3, 6–7, 8
Pavement Consultancy Services, Inc., 270, 274
Pavement Distress Analysis System, 95, 149–150, 150f
Pavement Health Track Analysis Tool, 219
Pavement Management Systems, Ltd., 270, 271
Pavement Performance Advisory Committee (Advisory Committee), 17–18, 18, 25, 63, 66, 258, 258t, 259–261
Pavement Performance Database, 132, 245b
Pecnik, Ivan, 19f, 270
Peer review groups, 17–18, 25–26, 181, 269–270
Pendleton, Olga, 259, 262, 265, 266
Pennsylvania Department of Transportation, 92, 202
Pensok, Ed, 64b
Personnel, qualifications for data collection, 167–168
Peters, Art, 259
Peters, Mary E., 59
Peterson, Dale, 259
Petzold, Roger, 259
Phillips, David K., 259
Phillips, David W., 261
Phoenix FWD, 7
Photographic distress surveys, 17, 93–95, 271–272
Photographic transverse profile studies, 103
Pierce, Linda, 263, 264
Pisarski, Alan, 265
Pitz, Miriam, 30f
Planning and advisory committees, 257–258, 258t
Planning and Pre-Implementation Advisors, 258, 258t
Polish, Patricia, 263
Portera, Joy, 260, 262
Portland cement concrete, 170–171, 246–247
- General and Specific Pavement Studies, 8t, 74t, 83, 238
- joint openings, 116
- SHRP testing program, 17, 191, 210
- transverse profiles, 105
Pothole repair, 191, 209, 210
Potter, John F., 266
Prakash, Anand, 260
Preserving and Maximizing the Utility of the Pavement Performance Database, 46–47
Products, LTPP
- data collection and, 235
- defined, 132
- expectations for rapid development of, in early program, 231, 235
- Expert Task Group on development and delivery of, 264
- funding for development of, 205
- future opportunities for development of, 251
- goals of future development, 244–245
- goals of 1996 program assessment, 236
- for maintenance and rehabilitation, 209–210
- for new and reconstructed pavements, 207–209
- organizational structure of LTPP program and development of, 232
- pavement management system tools and techniques, 210–212
- plan development, 205–207
- program accomplishments, 189, 204–205, 206f, 251
- program objectives, 204, 205, 207, 209, 210, 212
- for study of environmental effects, 214
- for traffic loading studies, 212–214
- See also Database, LTPP
Professional Service Industries, Inc., 273
Profile data, 16
- longitudinal, 99–102
- management responsibilities, 21
- transverse, 103–105
Profiling equipment, 99f, 100f, 101f, 168, 169b, 171
- acceptance testing, 282–283
- capabilities, 281–282
- data filtering, 281
- equipment comparisons, 100–101, 170
- equipment contracts, 272
- LTPP program purchases, 281, 282t
- quality control, 101–102, 180
- standards, 212
Program Assessment (1996), 26, 66–68, 84, 236–238
Program directives, 30
Program Improvement Campaign, 236–237
Program Improvement Subcommittee, 26
ProQual, 101–102, 104, 172, 173
ProVAL, 102, 212
ProXport, 102
Prozzi, Jorge A., 266
Pryor, Charles A., Jr., 259, 262, 264
Public access to LTPP data, 134–135, 136–137
Publications, 29
- documentation of LTPP activities and products, 240, 245b
- falling weight deflectometer manuals, 93
- FHWA standards, 181
- LTPP library of, 156–157
Puccinelli, Jason, 30f
Purdue University, 92

Quality assurance/quality control
- accomplishments of LTPP program, 183–184, 217–218
- after data collection, 173–175
- database audits, 177–178
- database checks and reviews, 175–176
- in database process, 135, 136f, 139
- before data collection, 164–170
- in data collection, 77, 79, 81–82, 83, 170–173
- in data release procedures, 134–135, 136–137, 153
- in distress surveys, 95
- equipment requirements for, 168–170
- evolution of program requirements for, 163–164
- in falling weight deflectometer operations, 91, 280
- feedback processes in, 182–183
- higher order data checks, 178–180
- key milestones in LTPP program, 164b
- in longitudinal profile studies, 101–102
- in Materials Action Plan, 126
- objectives, 163, 216, 218b
- peer review activities in, 181
- personnel requirements for, 167–168
- resources, 218b
- role of regional support contractors in, 24
- role of technical assistance contractor in, 16, 20–23
- in Seasonal Monitoring Program, 120
- standards adopted by LTPP for, 183, 212
Queiroz, Cesar A. V., 259
Quinley, Richard, 122f, 265

Raab, Robert, 19f, 26f, 36f, 192f, 262, 263, 264, 265, 266
Rasmusson, Eugene, 261
Rauhut, Brent, 266
Reel, Rick, 36f, 122f, 192f, 265
Regional contracts, 12, 13, 16–17
Regional coordination office contractors, 7, 18, 20
- in LTPP data collection program, 133
- in pavement studies, 68, 74
- responsibilities, 16–17
Regional offices, 12, 13f
Regional support contractors, 7, 270–271
- contract issuance, 23
- data collection role of, 78–79, 133, 134f, 135, 170
- in LTPP research programs, 68, 84–85, 95, 105–106
- meetings, 27, 29–30
- oversight, 19
- quality assurance audits of, 177–178
- responsibilities of, 23–24, 74, 90
- in traffic data collection, 107
- training of, for data collection, 167, 168
Rehabilitation. See Maintenance and rehabilitation of pavements
Rehabilitation Act, 181
Reilly, Robert J., 259
Reinhardt, Morris, 270
Research
- accomplishments of LTPP program, 189
- contracts, 24–25
- coordination meetings, 27
- documentation of procedures and findings, 240
- evolution of SHRP program of, 12–13
- initial LTPP plans for, 6
- LTPP objectives, 1, 11
- LTPP partners in, 37–39, 41
- major studies in preparation for LTPP, 3–5, 6–7, 8
- provisions of Transportation Equity Act for the 21^st Century for, 51b
- rationale, 58, 59
- role of regional coordination office contractors in, 16–17
- role of technical assistance contractor in, 15–16, 21, 23
- SHRP objectives, 4, 5b, 6
- in U.S. prior to LTPP, 2–3, 4
- See also Experiments, pavement
Researcher’s Guide to the Long-Term Pavement Performance Thickness Data, 209
Resilient modulus, 151, 151f, 173
- data studies, 180
- testing responsibility, 238
- test procedures, 208, 218b
Revenue Aligned Budget Authority, 46
Rhode Island LTPP Specific Pavement Study Workshop (2000), 27, 238–239
Richter, Cheryl, 19f, 192f, 255b, 263
Rigid pavement design, 207
Riley, Randell, 259
Rizenbergs, Rolands L., 259
Road and Transportation Association of Canada, 3
Road Profiler User Group, 28
Road Rater, 7
Roads and Transportation Association of Canada, 37
Roadway Express, Inc., 41
Robinson, Gary K., 259
Rodeos, equipment, 100–101, 170, 170f
Rodriguez, Luis, 192f
Rogers, Richard, 122f, 260, 263, 265
Roos, Daniel, 258
Rosenberger, James, 266
Ross, Frederic R., 259, 262
Rowshan, Shahed, 19f, 255b, 266
Rutting data, 102, 145, 191

Sack, Robert L., 262
Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users, 26, 45, 46, 53–56, 53b, 54t, 239
Santos, Luis de Picado, 266
Schleppi, Brian, 192f, 260, 263
Schoenhard, Larry, 265
Schofer, Joseph L., 258
Science Applications International Corporation, 270, 274
Scofield, Larry, 122f, 260, 262, 264, 265

~~Scott, Ted M., II, 257, 260~~
Scott, Ted M., II, 259, 262
Seasonal Monitoring Program, 24, 30, 51, 52, 169
- accomplishments of, 116, 121, 128
- CD-ROM, 214
- data interpretation, 120–121
- data storage, 145
- equipment calibration, 169, 170
- equipment used in, 283–285
- geographic distribution of instrumented sites in, 116f, 117
- monitoring equipment, 117, 117f, 118, 118f, 119f, 120f
- monitoring schedule, 119
- objectives of, 105
- origins of, 116
- Phase II monitoring, 119–120
- Phase I monitoring, 119
- pilot programs, 117–118
- purpose of, 115–116, 214
- qualifications of personnel for, 167
- quality assurance audits of data from, 177
- quality control software for, 120, 172
- scope of, 117, 119
- training sessions, 120
Selezneva, Olga, 26f, 36f, 192f
Senn, Kevin, 30f, 192f
Sexton, Jean, 255b
Shah, Shashikant, 19f
Sharpe, Gary, 260, 262, 264
Shatnawi, Shakir, 264
Sheriff, Margie, 19f
Sherwood, James A., 260, 266
Shober, Stephen, 264
SHRP. See Strategic Highway Research Program
SHRPBind, 200, 208
SHRP-LTPP Overview: Five-Year Report, 64
Sidekick^® software, 102
Sierra Transportation Engineers, Inc., 274
Sivaneswaran, Nadarajah, 192f
Slab width, 200
SLIC, 91
Smith, Harry A., 259
Smith, Karen, 19f
SMPCheck, 120
Smutzer, Richard K., 262
Software Performance Reports, 176, 182–183
Soil and Materials Engineering, Inc., 270, 271, 274
Southwest Labs, 273
Sparks, Gordon, 266
Specific Pavement Studies, 6, 37
- benefits of ongoing data collection, 248t
- cost of, 73
- current state of original experiments, 248
- data collection in, 79, 232
- data storage, 145
- design criteria, 65b
- drainage data collection in, 98
- dynamic load response data collection in, 83
- evolution of experimental designs in, 70–71, 71t
- experiments, 8, 8t, 70, 71t, 74t
- future prospects for, 74
- General Pavement Studies and, 69
- ground penetrating radar measurements in, 83–84
- inventory data, 84–85, 105–106
- management structure and responsibilities for, 16
- materials sampling in, 87–89, 238
- purpose of, 63, 69
- research design matrices, 70, 70f
- role of LTPP State Coordinators in, 234
- Superpave® mix project, 71–72
- supplemental sections, 65b, 72, 72b
- test sections, 65b, 72–74, 73f, 74f
- traffic data collection in, 213, 237
- weather data collection in, 80
- See also Traffic Data Collection Pooled-Fund Study
Springer, Jack, 27f, 30f, 192f, 255b, 264, 265
Sršen, Mate, 266
Stantec, 271
“Stars” report. See Strategic Transportation Research Study
Startup procedures, 169, 208
State and provincial highway agencies, 1, 46, 47
- contributions to LTPP program, 20, 34f, 39–40
- data analysis studies, 199–203
- financial support to LTPP program from, 234
- LTPP program communication with, 27, 28
- SHRP and, 3
- staff commitment to LTPP program, 234
- See also American Association of State Highway and Transportation Officials
State Coordinators, LTPP, 40
Stoffels, Shelley, 192f, 260, 263, 265
Stokoe, Ken, 260
Stolz, Elizabeth, 122f, 265
Strategic Highway Research Program Research Plans, 70
Strategic Highway Research Program Research Plans, Final Report (1986) (“Brown Book”), 6, 6f, 40, 48, 70
Strategic Highway Research Program (SHRP), 32b
- Advisory Committee, 259
- Canadian participation in, 37–39
- data analysis efforts, 190–191
- database development under, 133–135, 134f
- funding, 4, 11, 46, 48
- legislative authorization, 5, 49b
- LTPP management under, 12, 13–18, 14f, 40, 231, 232, 257
- LTPP origins in, 2, 5, 6, 8, 11
- LTPP transition from, 18–19, 269–270
- management structure and responsibilities, 13
- Midcourse Assessment Meeting, 234–235
- national workshops, 6
- origins of, 2, 3, 4–6
- planning studies, 258
- profilometer purchases, 281
- regional support contracts, 270
- research program, 4, 5b, 6, 12–13, 63–64, 66, 68, 70, 71
- Task Force, 259
- technical support contracts, 270
Strategic Pavement Design Initiative, 70
Strategic Plan for Data Analysis, 181, 250
Strategic Transportation Research Study (“Stars” report), 3, 4–5, 7, 41, 258
Stubstad, Richard N., 260
Study of Long-Term Pavement Performance (LTPP): Pavement Deflections, 91
Subcommittee for Product Development and Delivery, 26
Subcommittee on Experimental Design, 63
Subsurface measurements, 90, 116, 117, 118, 118f, 120, 121, 198, 284
Sullivan, Dick, 259
Superpave^® mix, 71–72, 243
Surface Transportation and Uniform Relocation Assistance Act (1987), 5, 12, 45, 46, 48–50, 49b, 49t
Surface Transportation Assistance Act (1978), 3
SurPRO, 100
Sweere, Govert, 266
Symons, Monte, 19f, 33f, 255b, 262, 264

Tahir, A. Haleem, 262, 264
Tarefder, Rafiqul Alam, 266
Tarpgaard, Sarah, 30f
Tayabji, Shiraz D., 259, 266
Taylor, Gary, 36f, 259, 260, 262, 264, 265
Technical assistance contractor, 7, 19–20, 68
- role of, 12, 15–16, 20–23
Technical support services contractor, 7, 13f, 19–20, 23, 270
- data collection role of, 78–79, 133, 157, 176
- meetings, 29–30
- quality control program, 178
Technology transfer, 17
Tektronics cable tester, 117, 283, 285
Temple, William, 26f, 262
Teng, Paul, 19f, 20f, 32b, 255b, 259, 266
Test sections
- asphalt thickness measurement of, 83–84
- benefits of ongoing data collection, 248, 248t
- current state of original LTPP experiments, 248
- distress surveys, 93–98
- dynamic load response data collection in, 83
- forensic studies, 127, 249
- future uses of, 251–252
- for General and Special Pavement Studies, 65b, 68–69, 72–74, 72b, 73f, 74f
- geographic distribution, 74f
- inventory data, 84–85
- length, 65b
- in LTPP approach, 1
- LTPP database records, 136
- LTPP partners in research on, 37, 38f, 39
- management responsibilities, 16, 24
- pavement performance data collection, 247–248
- in Seasonal Monitoring Program, 117
- testing and storage, 88
- traffic data collection, 106, 107, 121
- Traffic Data Collection Pooled-Fund Study, 122–123, 123f
Test sites
- for General Pavement Studies, 68, 74f
- geographic distribution, 74f
- lack of historical data for early LTPP research, 230
- location data, 85
- management responsibilities, 16, 17
- marking of, for pavement studies, 69f
- online data access, 154
- for Specific Pavement Studies, 73–74, 74f
- weather and climate data collection at, 80–83
Texas Department of Transportation, 28, 28b, 202–203
Texas Research and Development Foundation, 270
Thermographic scanning, 247
Thickness, pavement, 209
Thirumalai, K. T., 19f f
Thompson, Marshall R., 259, 260, 264
Thump-offs, 90, 90f, 92, 170
Thurmann-Moe, Thorkild, 266
Tighe, Susan, 192f, 263, 265
Time domain reflectometer, 117, 146, 284
Time-series checks, 179
Torrey, Ray, 19f
Traffic data collection
- challenges in, 107, 237
- contracts, 17, 272–273
- equipment, 107–108, 237
- evolution of, 107, 108, 237
- Expert Task Group, 261, 264–265
- future prospects for, 252
- historical data, 106
- inaccurate assumptions about, in early LTPP research, 230–231
- LTPP products for, 212–214
- management responsibilities, 20, 21, 23
- monitored data, 106–107
- quality control checks, 175
- rationale for, 77
- responsibility for, 107, 232
- storage, 145, 148
- transmittal forms, 106f, 108f
- types of data in, 106–107
- See also Traffic Data Collection Pooled-Fund Study
Traffic Data Collection Pooled-Fund Study, 78, 115, 121–125, 128, 207, 212–214, 213f, 237–238
Traffic loading
- data sources in use prior to LTPP, 2
- goals of LTPP, 1
- LTPP products for study of, 212–214
Traffic Monitoring Guide, 107, 175, 175f
Training of personnel for data collection, 167–168
Transportation Association of Canada, 37, 234
Transportation Equity Act for the 21st Century, 45, 46, 51–53, 51b, 52t, 205
Transportation Pooled-Fund Study, 92
Transportation Research Board, 32b, 108, 199, 270
- Data Analysis Working Group, 28, 203, 250, 257, 266
- in development of LTPP product plan, 205
- Expert Task Group on LTPP Data Analysis, 191–192, 263
- on future of LTPP, 244b
- LTPP Committee, 236, 261–262, 265
- as LTPP partner, 35, 40
- National Cooperative Highway Research Program, 5
- operation of LTPP database by, 133
- in origins of LTPP, 3, 4
- in origins of SHRP, 5–6
- peer review of LTPP programs by, 25–26
- in transition of LTPP from SHRP, 18
Transport Canada, 37
Transverse profile data, 103–105, 145, 150, 150f
Trentacoste, Michael, 255b
Turner-Fairbank Highway Research Center, 19, 21f, 56, 137, 138f, 140f, 141, 181, 245b, 284
Tweedie, Ronald, 265

Uddin, Waheed, 266
Ulery, Harry H., Jr., 259
Ullidtz, Per, 260
Undersealing, 86
University of Texas at Austin, 274
University of Texas Center for Transportation Research, 270
U.S. Army Corps of Engineers, 117
USAID, 42
User groups, 35, 41
Uzan, Jacob, 260

Van Berkel, John, 261, 265
Van Blerk, Gerhard, 266
Vandenbossche, Julie, 192f, 263
Van Kirk, Fred, 259
Vehicle classification, 214
Virtual weather stations, 82–83, 82f
Vischer, William, 263
Von Quintus, Harold, 19f

Walker, Deborah, 30f, 36f, 192f, 255b, 263, 265
Walls, James, 260, 263
Walters, Robert, 262
Walton, C. Michael, 204f, 262
Wardlaw, Kenneth R., 259
Warm-mix asphalt, 8, 19, 27, 64, 74, 84, 216, 249–250
Warpoole, Doug, 261
Warren, Kenneth I., 262
Wass, George, 265
Way, George B., 259
Weather stations, 80–83, 80f, 81f, 82f, 144, 167, 172, 173, 177, 277–278. See also Seasonal Monitoring Program
Weaver, Eric, 192f, 255b, 263
Weaver, John R., 263, 265
Webinars, 28–29, 29b, 216
Weed, Richard M., 260, 265
Weigh-in-motion data, 107, 121, 122, 122t, 124–125, 174, 212, 213–214, 237
- Expert Task Group, 261
- system contracts, 273
Wells, Sarah, 262
Wen, Haifang, 266
West, Randy, 263
Western Research Institute, 88
Westinghouse Environmental and Geotechnical Services, 273
WesTrack, 88
Wheeler, Homer, 19f, 270
White, Stella, 19f, 259
White, Thomas D., 259, 263
White, Tom, 192f
Whited, Gary C., 262
Williams, Greg, 266
Williams, Marcus, 259
Wiser, Larry, 26f, 30f, 192f, 255b, 263, 265, 266
Witczak, Matthew W., 259
Wolf, Dean, 36f
Wong, Bing, 264
Woodle, Clyde, 265
Wootan, Charley V., 259
Worel, Ben, 192f, 263, 264, 265
Work zone safety, 13
World Bank, 42
World Road Association–PIARC, 42
Wrong, Gerry, 260
Wu, Shie-Shin, 192f, 260, 263
Wyman, John, 261

Yang, Wei-Shih, 265
Yang, Wes, 192f, 260, 263, 264
Young, William A., 260
Yourcheff, Jack, 19f
Yowell, James McFarland, 262
Yu, Tom, 192f

Page Owner: Office of Research, Development, and Technology, Office of Infrastructure, RDT

Topics: research, infrastructure, pavements and materials
Keywords: research, infrastructure, pavements and materials
TRT Terms: research, facilities, transportation, highway facilities, roads, parts of roads, pavement
Scheduled Update: Archive - No Update needed

This page last modified on 09/22/2017