Maximizing Airport Pavement Life Through Research and Development
Enhance airport pavement longevity for cost savings and environmental benefits. Key goals include linking databases, developing performance models, and implementing 40-year design procedures. Recent accomplishments and funding requirements highlighted for continued success.
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Extended Pavement Life Federal Aviation Administration RPA P8 Presented to: REDAC Subcommittee on Airports By: David R. Brill, P.E., Ph.D. August 17, 2016 Date:
RPA P8 Extended Pavement Life Need Research Goals Link PA40 database to historical traffic data sources in ASIAS by FY16. Develop performance data models (Age-DL and Traffic-DL) by FY18. Next-generation FAARFIELD program incorporating new 40-year life design procedures by FY22. Longer design periods for airport pavements, up to double the current standard of 20 years, will provide cost savings to the AIP by reducing lifecycle costs. Extended airport pavement life also provides many green benefits, and minimizes down time at the nation s busiest airports. FY 2016 Accomplishments Completed field data collection at TUS and MCI. PA40 database 90% complete. Funding Requirements FY 2016 FY 2017 FY 2018 1,210 1,000 1,030 Funding Target ($000) Federal Aviation Administration August 17, 2016 Extended Pavement Life 2
Pavement Life Extension Runway data collection. 4-year project last year. Construction and performance data on medium- and large-hub runway pavements. Field data collection. Current efforts focus on filling known gaps in data. FAA PAVEAIR database development (PA40). Pavement life model development. Level Data Type/File Index Climate Zone Annual Rainfall Mean High/Low Temperatures Freezing/Thawing Degree Days Network AIRPORT Weather Data Local Work Type/Cost Data Traffic Data Friction Index Friction Data BBI CA Profilograph Straight Edge Branch RUNWAY Profile Data Mean Groove Depth Crack Density, Other? Laser Images Geotechnical/Design Data SECTION OF RUNWAY OR SHOULDER FWD File ISM Section Field Core Data As-Built Structure Work History PCI Inspection Data Federal Aviation Administration August 17, 2016 Extended Pavement Life 3
TUS Field Data Collection December 2015 SurPro Guide @ Intersection PCI Inspection, RWY 11L Federal Aviation Administration August 17, 2016 Extended Pavement Life 4
MCI Field Data Collection April 2016 SurPro Profile, RWY 9-27 PCI Inspection, RWY 9-27 Federal Aviation Administration August 17, 2016 Extended Pavement Life 5
PA40 Database Federal Aviation Administration August 17, 2016 Extended Pavement Life 6
PA40 Database Status Data Found No Data Found Data Not Applicable Data Acquired in 2016 Airport ATL BOS BWI DEN CMH DCA FLL GSO IAD IAH IND LAX MCI MCO LGA MIA ORD SFO SLC SEA TUS Design Traffic FWD Lab Test Grooving Profile PCI Federal Aviation Administration August 17, 2016 Extended Pavement Life 7
Updated Runway List Airport Code Airport Name Runway Pavement / Age Asphalt Runways, >20 years Field Testing Subcontractor Comments PCI / FWD / Inertial Profiler & SurPro CMH Port Columbus International 10L-28R Flexible / >20 ARA General Edward Lawrence Logan Intl. Baltimore Washington International Tucson International San Francisco International Ronald Reagan Washington National New York - LaGuardia BOS 04L-22R Flexible / >20 PCI / FWD / Inertial Profiler Gemini PCI / FWD / Inertial Profiler & SurPro Yes No BWI 10-28 Flexible / >20 ARA TUS SFO 11L-29R 10L & 10R Flexible / >20 Flexible / >50 Gemini/ARA ARA Field Work Completed 12/2015 DCA 04-22 Flexible / 40 No Gemini LGA 42482 Flexible / >20 No ARA PCI / FWD / Inertial Profiler & SurPro Yes SLC Salt Lake City International 16L-34R Flexible / >20 ARA Field Work completed 11/2014 MCI Kansas City International 09-27 Flexible / >30 ARA Field Work Completed 4/2016 Concrete Runways, >20 years IAD Washington Dulles International 01R-19L Rigid / >20 PCI / FWD / Inertial Profiler PCI / FWD / Inertial Profiler & SurPro No No No PCI / FWD / Inertial Profiler & SurPro No No No Gemini IND Indianapolis International 5R-23L Rigid / 23 Gemini SEA LAX MCO Seattle-Tacoma International Los Angeles International Orlando International 16C-34C 6R-24L 17R-35L Rigid / >20 Rigid / 26 Rigid / 24 ARA Gemini ARA SLC Salt Lake City International 16R-34L Rigid / 29 ARA Field Work completed 11/2014 DEN ATL DFW Denver International Hartsfield Jackson Atlanta Intl. Dallas/Fort Worth International 17L-35R 9L-27R 18L-36R Rigid / 19 Rigid / >20 Rigid / 40 ARA ARA ARA Asphalt Runways, <3 years CMH Port Columbus International 10R-28L Flexible / <3 Inertial Profiler ARA PCI / FWD / Inertial Profiler & SurPro Yes PCI / FWD / Inertial Profiler & SurPro GSO Piedmont Triad International 5L-23R Flexible / 3 ARA Small Hub TUS Tucson International 03-21 Flexible / <3 Gemini/ARA Field Work Completed 12/2015 Field work Completed 2/2015. Material samples not obtained. MIA Miami International 12-30 Flexible / <1 ARA Concrete Runways, <3 years SEA Seattle-Tacoma International 16R-34L Rigid / <3 PCI / FWD / Inertial Profiler PCI / FWD / Inertial Profiler & SurPro No No PCI / FWD / Inertial Profiler & SurPro ARA ORD Chicago O'Hare International 10C-28C Rigid / <1 Gemini IAD IAH Washington Dulles George Bush Intercontinental 01C-19C 09-27 Rigid / <3 Rigid / <3 Gemini ARA FLL 10R-28L Rigid / <1 ARA Field work Completed 2/2015 Fort Lauderdale Hollywood Intl. Federal Aviation Administration August 17, 2016 Extended Pavement Life 8
Traffic Data in PA40 Historical runway traffic data (as opposed to design traffic data) are generally not available from airport engineers. Available data sources: ASDE-X (NAS data since 2012 stored at the WJHTC). PDARS (data for some airports back to 2010). Threaded Track Data (TTD) produced by MITRE Corp. Fusion of data from National Offload Program (NOP), ASDE-X and Enhanced Traffic Management System (ETMS). Access NAS data via NPN shared services. Avoid unnecessary data duplication. Federal Aviation Administration August 17, 2016 Extended Pavement Life 9
Accessing TTD via the NPN Virtual Machine (VM) Virtual Machine (VM) Emulates a Windows 2008 R2 Server Emulates a Windows 2008 R2 Server PA40 Server PA40 Server PA40 User PA40 User Web Service (under construction) Runway usage data searchable by: Month/Year Stored ASDE-X Data > 240 Terabytes Aircraft Type Runway End DMZ Arrival/Departure FAA NextGen Prototyping Network (NPN) Federal Aviation Administration August 17, 2016 Extended Pavement Life 10
Developing New Performance Models New performance models will relate design inputs to a future distress index (DL)incorporating structural and non-structural elements. Current Design Procedures: Inputs Structural Layers CBR or k-value Aircraft Traffic Concrete Strength (rigid) 40-Year Design: Inputs Everything to the left, plus Age, Climatic Data Soil/Material Properties Maintenance Data Airport Feature (runway, apron, etc.) Outputs Passes to structural failure, plus Roughness index prediction Surface friction prediction Other functional indexes Output Passes to structural failure* *defined as 2.5 cm upheaval for flexible pavements or 50% of slabs cracked for rigid pavements Federal Aviation Administration August 17, 2016 Extended Pavement Life 11
Concept of Index DL Define a new metric DL( distress level ). Quantifies pavement serviceability. Mega-Index Some combination of structural (SCI) and functional indexes (friction, roughness, etc.). Assume DL is on a numerical scale of 1 100. Definition of failure: Quantitative: Pavement is failed when DL decreases below a lower threshold value (DLlower) and cannot be restored to an upper threshold value (DLupper) with probability p of remaining above the lower threshold for a period of 10 years or more. Qualitative: A fair LCCA would recommend full reconstruction as the best option. Must determine the value of p, the upper and lower thresholds, and the specific component indexes. Federal Aviation Administration August 17, 2016 Extended Pavement Life 12
Graphical Representation End of Life Federal Aviation Administration August 17, 2016 Extended Pavement Life 13
Graphical Representation Not End Of Life Federal Aviation Administration August 17, 2016 Extended Pavement Life 14
FY17 R&D Efforts Complete population of PA40 (TUS, MCI). Perform field data collection at one additional runway selected from those currently in the PA40 database (TBD). Link to existing databases with historical runway traffic (TTD) and climatic data. Develop new sets of family curves in PA40 (coordinate with RPA P7.1 FAA PAVEAIR). DL versus age DL versus applied traffic Look at index components of DL to satisfy end of life definition. Federal Aviation Administration August 17, 2016 Extended Pavement Life 15
