The Impact of Wide-Base Tires on Pavement Damage: A National Study

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General Information
Study Number: TPF-5(197)
Lead Organization: Federal Highway Administration
Contract Start Date: Apr 13, 2011
Solicitation Number: 1175
Partners: IL, MN, MT, NY, OK, TX, VA
Status: Cleared by FHWA
Est. Completion Date: Oct 15, 2015
Contract/Other Number: DTFH61-11-C-00025
Last Updated: Jul 15, 2015
Contract End Date: Dec 31, 2015
Financial Summary
Contract Amount: $1,190,456.00
Total Commitments Received: $775,000.00
100% SP&R Approval: Approved
Contact Information
Lead Study Contact(s): Eric Weaver
Eric.Weaver@dot.gov
Phone: 202- 493-3153
Organization Year Commitments Technical Contact Name Funding Contact Name Contact Number Email Address
Illinois Department of Transportation 2009 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Illinois Department of Transportation 2010 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Illinois Department of Transportation 2011 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Illinois Department of Transportation 2012 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Illinois Department of Transportation 2013 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Minnesota Department of Transportation 2009 $25,000.00 Lisa Jansen 651-366-3779 lisa.jansen@state.mn.us
Minnesota Department of Transportation 2010 $25,000.00 Lisa Jansen 651-366-3779 lisa.jansen@state.mn.us
Minnesota Department of Transportation 2011 $25,000.00 Lisa Jansen 651-366-3779 lisa.jansen@state.mn.us
Minnesota Department of Transportation 2012 $25,000.00 Lisa Jansen 651-366-3779 lisa.jansen@state.mn.us
Montana Department of Transportation 2009 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
Montana Department of Transportation 2010 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
Montana Department of Transportation 2011 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
Montana Department of Transportation 2012 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
Montana Department of Transportation 2013 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
New York State Department of Transportation 2009 $25,000.00 Wes Yang Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
New York State Department of Transportation 2010 $25,000.00 Wes Yang Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
New York State Department of Transportation 2011 $25,000.00 Wes Yang Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
New York State Department of Transportation 2012 $25,000.00 Wes Yang Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
Oklahoma Transportation 2011 $25,000.00 Angel Gonzales Ron Curb (405)420-9163 rcurb@odot.org
Oklahoma Transportation 2012 $25,000.00 Angel Gonzales Ron Curb (405)420-9163 rcurb@odot.org
Oklahoma Transportation 2013 $25,000.00 Angel Gonzales Ron Curb (405)420-9163 rcurb@odot.org
Texas Department of Transportation 2009 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2010 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2011 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2012 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2013 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Virginia Department of Transportation 2009 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2010 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2011 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2012 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2013 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov

Study Description

Recent advances in tire technology have led to the design of a wide-base tire that has a wider tread than previous designs. These new wide-base tires (445/50R22.5 and 455/55R22.5) result in a load distribution comparable to dual tires. The potential for these wider tires to be more widely adopted is high. Innovative technologies such as the new generation of wide-base tires and other factors related to trucking operations that directly affect pavement damage can be classified into three major components: vehicle-generated load, axle and tire configuration transferring the load, and pavement carrying the load. To fully characterize the damage induced by different tire and axle configurations, the effects of vehicle, tire, and pavement and their interaction must be quantified. Vehicle and tire factors include axle loads, axle spacing, speed, tire inflation pressure, and tire configurations. Pavement parameters include surface roughness, materials properties, layer thicknesses, and subgrade strength. Various research studies investigated the potential pavement damage of wide-base tires as compared to regular dual-tire assemblies. However, until the past five years, all the research studies documented in the literature were conducted on the early generations of wide-base tires. With the recent introduction of the Mechanistic-Empirical Pavement Design Guide (MEPDG), the emphasis in pavement design procedure has shifted from empirical methods to more rational approaches. Therefore, the impact of different vehicle-tire factors on the pavement damage need to be determined using rigorous theoretical modeling capable of simulating field conditions and should be validated utilizing field test response measurements.

Objectives

* Quantify the impact of vehicle-tire interaction on pavement damage utilizing advanced theoretical modeling that is validated via full-scale pavement testing. This includes the determination of the relative effects of wide-base tires and dual-tire assemblies on pavement performance. * Perform an analysis of the economic, safety, and environmental effects of using wide base tires relative to the impact on pavement performance. * Develop methodology that allows states to assess the impact of wide-base tires on the pavement network.

Scope of Work

The research team shall propose an experimental plan to quantify pavement damage due to different tire and axle configurations commonly used in the US. Upon approval of the plan, the experiment will be conducted. This may include accelerated pavement testing to validate the finite element numerical modeling. The validated models, with accelerated pavement test data, can be used to predict damage for various flexible pavement system designs. A comprehensive literature search and synthesis will be needed on the effect of wide-base tire application on pavement damage; starting with the minutes from the "2007 International Workshop on the Use of Wide Base Tires," posted here: http://www.arc.unr.edu/Workshops.html. In addition to pavement response and performance, the effect of wide base tires on vehicle handling, safety, economics, noise and other environmental factors shall be reviewed and documented. The Truck Size and Weight regulations for each state shall also be evaluated for their relevance to usage of wide base tires under study.

Comments

Documents Attached
Title File/Link Type Privacy Download
Quarterly Report April-June 2016 Quarter 13 WBT Project -- Apr-Jun 14 - 07-14-14 ILA.DOCX Quarterly Progress Report Public
Quarterly Report January-March 2016 Quarter 20 WBT Project - 050416 - 2.pdf Quarterly Progress Report Public
Quarterly Report October-November 2015 Quarter 19 WBT Project.pdf Quarterly Progress Report Public
October 2015 TRB Webinar Presentations 151019.pdf Other Public
Quarterly Report July-September 2015 Quarter 18 WBT Project.pdf Quarterly Progress Report Public
Draft Final Report WBT VOL III Draft Final Report WBT VOL III.pdf Final Report Public
Draft Final Report WBT VOL I Draft Final Report WBT VOL I.pdf Final Report Public
Quarterly Report April - June 2015 Quarter 17 WBT Project -- 07-27-15 ILA addressing Eric questions.docx Quarterly Progress Report Public
Quarterly Report January-March 2015 Quarter 16 WBT Project -- Jan-Mar 15 - 04-20-15 F.PDF Quarterly Progress Report Public
Quarterly Report October - December 2014 Quarter 15 WBT Project -- Oct-Dec 14 - 01-26-15.pdf Quarterly Progress Report Public
Quarterly Report July - September 2014 wide base sep 2014 QR ILA.PDF Quarterly Progress Report Public
Quarterly Report July - September 2014 wide base sep 2014 QR ILA.PDF Quarterly Progress Report Public
3rd TAC Meeting (Webmeeting) Presentation Phase III Report -- 07-30-14 -- Reduced.pdf Study Summary Public
Quarterly Report April - June 2014 Quarter 13 WBT Project -- Apr-Jun 14 - 07-14-14 ILA.DOCX Quarterly Progress Report Public
Quarterly Report January - March 2014 Quarter 12 WBT Project - 04-14-14 -- FINAL.DOCX Quarterly Progress Report Public
Response to TAC Comments from May 2013 Meeting Reply to TAC comments -- 12-08-13 ILA.DOCX Follow-up Questionnaire Public
Extension Request and Work Plan REQUEST FOR EXTENSION - 1-10-14 ILA.DOCX Work Plan Public
Quarterly Report October-December 2013 Quarter 11 WBT Project 1-15-2014 F.DOCX Quarterly Progress Report Public
Quarterly Report July-September 2013 Quarter 10 WBT Project -- 07-13 to 09-13 -- 10-16-13(3).docx Quarterly Progress Report Public
Phase II TAC meeting minutes Wide-Base Tire Phase II Panel mtg 5-30-13.pdf Other Public
UIUC ANN Presentation Intro to ANN.pdf Other Public
Quarterly Report April-June 2013 Quarter 9 WBT Project -- 04-13 to 03-13 -- 06-15-13.pdf Quarterly Progress Report Public
Phase II TAC Meeting Presentations Phase II Meeting WBT -- DRAFT-CONFIDENTIAL.pdf Other Public
Quarterly Report January-March 2013 Quarter 8 WBT Project -- 01-13 to 03-13 -- 04-15-13.pdf Quarterly Progress Report Public
Quarterly Report October-December 2012 Quarter 7 WBT Project -- 10-12 to 12-12 --01-28-13 ILA.pdf Quarterly Progress Report Public
Quarterly Report July-September 2012 Quarter 6 WBT Project -- 07-12 to 09-12 Submit.pdf Quarterly Progress Report Public
Quarterly Progress Report: July-September 2011 Quarter 2 WBT Project.pdf Quarterly Progress Report Public
Quarterly Report April-June 2012 Quarter 5 WBT Project -- 04-12 to 06-12 ILA.docx Quarterly Progress Report Public
Revised Phase I Report with Phase II Workplan Phase I Report WBT 05-01-12 with OHIO.docx Work Plan Public
Quarterly Report January-March 2012 Quarter 4 WBT Project -- 01-12 to 03-12 Reviewed.docx Quarterly Progress Report Public
Quarterly Report October-December 2011 Quarter 3 WBT Project.pdf Quarterly Progress Report Public
Phase I TAC Meeting Minutes Final Wide-Base Tire Phase II Panel mtg 10-26-11.docx Other Public
July-September 2011, and Phase 1 report combined Phase I Report WBT 09-26-11 F.pdf Quarterly Progress Report Public
Quarterly Report: October - December 2010 TPF-5(197)QuarterlyReport-January2011.pdf Quarterly Progress Report Public
Quarterly Report: April - June 2011 Quarter-1-WBT-Project-FIXED-7-14-11.pdf Quarterly Progress Report Public
Quarterly Report: January - March 2011 TPF-5_197_Quarterly_Report_April2011-Weaver.pdf Quarterly Progress Report Public
Panel Meeting Research Plan: May 16, 2011 Panel-meeting-Research-Plan-5-16-11.pptx Other Public
Phase 1 Kickoff Meeting: May 16, 2011 Phase1-kick-off-mtg5-16-11.pdf Other Public
Contract DTFH61-11-C-00025 UIUC.pdf Other Public
Quarterly Report October - December 2010 TPF-5(197)QuarterlyReport-January2011-Weaver.pdf Quarterly Progress Report Public
Quarterly Report April - June 2010 TPF-5(197)_Quarterly_Report_July_2010_Weaver.pdf Quarterly Progress Report Public
Draft Statement of Work TPF-5197-SoW-ammend2.pdf Other Public
Draft Statement of Work TPF-5197-SoW-ammend2(2).pdf Other Public
Quarterly Report: January - March 2010 TPF-5(197)_Quarterly_Report-April_2010-Weaver.pdf Quarterly Progress Report Public
Acceptance Memo Acceptance_Memo.pdf Memorandum Public
Documents Attached
Title File/Link Type Privacy Download
The Impact of Wide-Base Tires on Pavement Damage: A National Study 1175.pdf Solicitation Public

The Impact of Wide-Base Tires on Pavement Damage: A National Study

General Information
Study Number: TPF-5(197)
Lead Organization: Federal Highway Administration
Contract Start Date: Apr 13, 2011
Solicitation Number: 1175
Partners: IL, MN, MT, NY, OK, TX, VA
Status: Cleared by FHWA
Est. Completion Date: Oct 15, 2015
Contract/Other Number: DTFH61-11-C-00025
Last Updated: Jul 15, 2015
Contract End Date: Dec 31, 2015
Financial Summary
Contract Amount: $1,190,456.00
Total Commitments Received: $775,000.00
100% SP&R Approval:
Contact Information
Lead Study Contact(s): Eric Weaver
Eric.Weaver@dot.gov
Phone: 202- 493-3153
Commitments by Organizations
Organization Year Commitments Technical Contact Name Funding Contact Name Contact Number Email Address
Illinois Department of Transportation 2009 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Illinois Department of Transportation 2010 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Illinois Department of Transportation 2011 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Illinois Department of Transportation 2012 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Illinois Department of Transportation 2013 $25,000.00 Charles Wienrank Megan Swanson 217-782-3547 Megan.Swanson@illinois.gov
Minnesota Department of Transportation 2009 $25,000.00 Lisa Jansen 651-366-3779 lisa.jansen@state.mn.us
Minnesota Department of Transportation 2010 $25,000.00 Lisa Jansen 651-366-3779 lisa.jansen@state.mn.us
Minnesota Department of Transportation 2011 $25,000.00 Lisa Jansen 651-366-3779 lisa.jansen@state.mn.us
Minnesota Department of Transportation 2012 $25,000.00 Lisa Jansen 651-366-3779 lisa.jansen@state.mn.us
Montana Department of Transportation 2009 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
Montana Department of Transportation 2010 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
Montana Department of Transportation 2011 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
Montana Department of Transportation 2012 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
Montana Department of Transportation 2013 $25,000.00 Dan Hill Susan Sillick 406-444-7693 ssillick@mt.gov
New York State Department of Transportation 2009 $25,000.00 Wes Yang Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
New York State Department of Transportation 2010 $25,000.00 Wes Yang Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
New York State Department of Transportation 2011 $25,000.00 Wes Yang Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
New York State Department of Transportation 2012 $25,000.00 Wes Yang Gary Frederick 518-457-4645 gary.frederick@dot.ny.gov
Oklahoma Transportation 2011 $25,000.00 Angel Gonzales Ron Curb (405)420-9163 rcurb@odot.org
Oklahoma Transportation 2012 $25,000.00 Angel Gonzales Ron Curb (405)420-9163 rcurb@odot.org
Oklahoma Transportation 2013 $25,000.00 Angel Gonzales Ron Curb (405)420-9163 rcurb@odot.org
Texas Department of Transportation 2009 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2010 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2011 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2012 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Texas Department of Transportation 2013 $25,000.00 Larry Buttler Ned Mattila 512-416-4727 ned.mattila@txdot.gov
Virginia Department of Transportation 2009 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2010 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2011 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2012 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov
Virginia Department of Transportation 2013 $25,000.00 Brian Diefenderfer Bill Kelsh 434-293-1934 Bill.Kelsh@VDOT.Virginia.gov

Study Description

Study Description

Recent advances in tire technology have led to the design of a wide-base tire that has a wider tread than previous designs. These new wide-base tires (445/50R22.5 and 455/55R22.5) result in a load distribution comparable to dual tires. The potential for these wider tires to be more widely adopted is high. Innovative technologies such as the new generation of wide-base tires and other factors related to trucking operations that directly affect pavement damage can be classified into three major components: vehicle-generated load, axle and tire configuration transferring the load, and pavement carrying the load. To fully characterize the damage induced by different tire and axle configurations, the effects of vehicle, tire, and pavement and their interaction must be quantified. Vehicle and tire factors include axle loads, axle spacing, speed, tire inflation pressure, and tire configurations. Pavement parameters include surface roughness, materials properties, layer thicknesses, and subgrade strength. Various research studies investigated the potential pavement damage of wide-base tires as compared to regular dual-tire assemblies. However, until the past five years, all the research studies documented in the literature were conducted on the early generations of wide-base tires. With the recent introduction of the Mechanistic-Empirical Pavement Design Guide (MEPDG), the emphasis in pavement design procedure has shifted from empirical methods to more rational approaches. Therefore, the impact of different vehicle-tire factors on the pavement damage need to be determined using rigorous theoretical modeling capable of simulating field conditions and should be validated utilizing field test response measurements.

Objectives

* Quantify the impact of vehicle-tire interaction on pavement damage utilizing advanced theoretical modeling that is validated via full-scale pavement testing. This includes the determination of the relative effects of wide-base tires and dual-tire assemblies on pavement performance. * Perform an analysis of the economic, safety, and environmental effects of using wide base tires relative to the impact on pavement performance. * Develop methodology that allows states to assess the impact of wide-base tires on the pavement network.

Scope of Work

The research team shall propose an experimental plan to quantify pavement damage due to different tire and axle configurations commonly used in the US. Upon approval of the plan, the experiment will be conducted. This may include accelerated pavement testing to validate the finite element numerical modeling. The validated models, with accelerated pavement test data, can be used to predict damage for various flexible pavement system designs. A comprehensive literature search and synthesis will be needed on the effect of wide-base tire application on pavement damage; starting with the minutes from the "2007 International Workshop on the Use of Wide Base Tires," posted here: http://www.arc.unr.edu/Workshops.html. In addition to pavement response and performance, the effect of wide base tires on vehicle handling, safety, economics, noise and other environmental factors shall be reviewed and documented. The Truck Size and Weight regulations for each state shall also be evaluated for their relevance to usage of wide base tires under study.

Comments

Title File/Link Type Private
Draft Final Report WBT VOL I Draft Final Report WBT VOL I.pdf Final Report Public
Draft Final Report WBT VOL III Draft Final Report WBT VOL III.pdf Final Report Public
Response to TAC Comments from May 2013 Meeting Reply to TAC comments -- 12-08-13 ILA.DOCX Follow-up Questionnaire Public
Acceptance Memo Acceptance_Memo.pdf Memorandum Public
Draft Statement of Work TPF-5197-SoW-ammend2(2).pdf Other Public
Draft Statement of Work TPF-5197-SoW-ammend2.pdf Other Public
Contract DTFH61-11-C-00025 UIUC.pdf Other Public
Phase 1 Kickoff Meeting: May 16, 2011 Phase1-kick-off-mtg5-16-11.pdf Other Public
Panel Meeting Research Plan: May 16, 2011 Panel-meeting-Research-Plan-5-16-11.pptx Other Public
Phase I TAC Meeting Minutes Final Wide-Base Tire Phase II Panel mtg 10-26-11.docx Other Public
Phase II TAC Meeting Presentations Phase II Meeting WBT -- DRAFT-CONFIDENTIAL.pdf Other Public
UIUC ANN Presentation Intro to ANN.pdf Other Public
Phase II TAC meeting minutes Wide-Base Tire Phase II Panel mtg 5-30-13.pdf Other Public
October 2015 TRB Webinar Presentations 151019.pdf Other Public
Quarterly Report: January - March 2010 TPF-5(197)_Quarterly_Report-April_2010-Weaver.pdf Quarterly Progress Report Public
Quarterly Report April - June 2010 TPF-5(197)_Quarterly_Report_July_2010_Weaver.pdf Quarterly Progress Report Public
Quarterly Report October - December 2010 TPF-5(197)QuarterlyReport-January2011-Weaver.pdf Quarterly Progress Report Public
Quarterly Report: October - December 2010 TPF-5(197)QuarterlyReport-January2011.pdf Quarterly Progress Report Public
Quarterly Report: January - March 2011 TPF-5_197_Quarterly_Report_April2011-Weaver.pdf Quarterly Progress Report Public
Quarterly Report: April - June 2011 Quarter-1-WBT-Project-FIXED-7-14-11.pdf Quarterly Progress Report Public
July-September 2011, and Phase 1 report combined Phase I Report WBT 09-26-11 F.pdf Quarterly Progress Report Public
Quarterly Progress Report: July-September 2011 Quarter 2 WBT Project.pdf Quarterly Progress Report Public
Quarterly Report October-December 2011 Quarter 3 WBT Project.pdf Quarterly Progress Report Public
Quarterly Report January-March 2012 Quarter 4 WBT Project -- 01-12 to 03-12 Reviewed.docx Quarterly Progress Report Public
Quarterly Report April-June 2012 Quarter 5 WBT Project -- 04-12 to 06-12 ILA.docx Quarterly Progress Report Public
Quarterly Report July-September 2012 Quarter 6 WBT Project -- 07-12 to 09-12 Submit.pdf Quarterly Progress Report Public
Quarterly Report October-December 2012 Quarter 7 WBT Project -- 10-12 to 12-12 --01-28-13 ILA.pdf Quarterly Progress Report Public
Quarterly Report January-March 2013 Quarter 8 WBT Project -- 01-13 to 03-13 -- 04-15-13.pdf Quarterly Progress Report Public
Quarterly Report April-June 2013 Quarter 9 WBT Project -- 04-13 to 03-13 -- 06-15-13.pdf Quarterly Progress Report Public
Quarterly Report July-September 2013 Quarter 10 WBT Project -- 07-13 to 09-13 -- 10-16-13(3).docx Quarterly Progress Report Public
Quarterly Report October-December 2013 Quarter 11 WBT Project 1-15-2014 F.DOCX Quarterly Progress Report Public
Quarterly Report January - March 2014 Quarter 12 WBT Project - 04-14-14 -- FINAL.DOCX Quarterly Progress Report Public
Quarterly Report April - June 2014 Quarter 13 WBT Project -- Apr-Jun 14 - 07-14-14 ILA.DOCX Quarterly Progress Report Public
Quarterly Report July - September 2014 wide base sep 2014 QR ILA.PDF Quarterly Progress Report Public
Quarterly Report July - September 2014 wide base sep 2014 QR ILA.PDF Quarterly Progress Report Public
Quarterly Report October - December 2014 Quarter 15 WBT Project -- Oct-Dec 14 - 01-26-15.pdf Quarterly Progress Report Public
Quarterly Report January-March 2015 Quarter 16 WBT Project -- Jan-Mar 15 - 04-20-15 F.PDF Quarterly Progress Report Public
Quarterly Report April - June 2015 Quarter 17 WBT Project -- 07-27-15 ILA addressing Eric questions.docx Quarterly Progress Report Public
Quarterly Report July-September 2015 Quarter 18 WBT Project.pdf Quarterly Progress Report Public
Quarterly Report October-November 2015 Quarter 19 WBT Project.pdf Quarterly Progress Report Public
Quarterly Report January-March 2016 Quarter 20 WBT Project - 050416 - 2.pdf Quarterly Progress Report Public
Quarterly Report April-June 2016 Quarter 13 WBT Project -- Apr-Jun 14 - 07-14-14 ILA.DOCX Quarterly Progress Report Public
3rd TAC Meeting (Webmeeting) Presentation Phase III Report -- 07-30-14 -- Reduced.pdf Study Summary Public
Revised Phase I Report with Phase II Workplan Phase I Report WBT 05-01-12 with OHIO.docx Work Plan Public
Extension Request and Work Plan REQUEST FOR EXTENSION - 1-10-14 ILA.DOCX Work Plan Public
Title File/Link Type Private
The Impact of Wide-Base Tires on Pavement Damage: A National Study 1175.pdf Solicitation Public

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