FHWA Design Guide Implementation Team DGIT Update

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FHWA Design Guide Implementation Team (DGIT)
Update
AASHTO Joint Technical Committee on Pavements
Meeting
December 7, 2006
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PURPOSE of DGIT

• Team within FHWA created to support educate
  State highway agencies, Division Offices, and
  industry in development implementation of
  Mechanistic-Empirical Pavement Design

Facilitating Implementation of
Mechanistic-Empirical Pavement Design
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Design Guide Implementation Team DGIT

• Office of Pavement Technology
• Gary Crawford Concrete Team Group Leader
• Vacant Asphalt Team
• Resource Center
• Chris Wagner TST Team
• Angel Correa TST Team
• Division Office
• John Sullivan Division Administrator NC
• Turner-Fairbank Highway Research Center
• Jim Sherwood Advanced Models Team
• Eric Weaver LTPP Team

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Implementation Strategies
Implement

Enhance

Educate
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FHWA Workshops
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FHWA DGIT Workshops

• Future
• Local Calibration
• Weighing Impacts of MEPD for Next
• Generation Traffic Data
• Upcoming
• Traffic 3
• PMS Database Inputs - 1
• Past Workshops
• Introduction to the DG 8
• Traffic 2
• Materials 11
• Climatic Inputs 12

Webcast available
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DGIT Activities

• 30 states
• 2,000 participants
• 500 web participants
• China
• Mexico
• Canada
• Europe
• India
• South and Central America

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Workshop Webcast Descriptionswww.fhwa.dot.gov/pav
ement/dgit/dgitcast.cfm
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FHWA Workshops
Advanced Technology for Workshops DGIT webcast
from Connecticut DOT URL server
1-day Intro workshop
www.ct.gov/dot/pavement101
2-day Materials Inputs workshop
www.ct.gov/dot/pavement102
Executive Overview of MEPDG for Managers
http//www.conndot.ct.gov/media/mainpsa.aspx?url
mms//conndot-video.ct.gov/mediapoint/FHWA/john_da
ngelo.wmvsamihttp//www.conndot.ct.gov/sami/joh
n_dangelo.sminameJohn20D'Angelo20 FHWA
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FHWA Workshops
Advanced Technology for Workshops DGIT webcast
from Connecticut DOT URL server
1-day Climatic Considerations workshop
www.ct.gov/dot/CTW
1-day Traffic Data workshop
www.ct.gov/dot/TDW
1-day Use of PMS to Calibrate MEPDG Workshop
www.ct.gov/dot/PMS
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NHI Courses

• NHI 131064 Introduction to Mechanistic Design
  (Available)
• NHI 131109 - Using Mechanistic-Empirical
  Pavement Design Guide Software (In
  Development)
• NHI 132040 Geotechnical Aspects of Pavements
  (Available)
• NHI 151018 Application of Traffic Monitoring
  Guide (Available)

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Future FHWA Workshops
National Highway Institute NHI Course
131109 Pilot April 2007 Analysis of New and
Rehabilitated Pavement Performance with
Mechanistic-Empirical Pavement Design Software

• Hands-on format with computers loaded with
  software
• Focus on user, not theory
• Objective is for audience to be capable of
  performing
• flexible, rigid, rehab designs

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Future FHWA Workshops

• Local Calibration for M-E PDG models
• Awaiting deliverables from NCHRP 1-40 B
• Pilot planned for Fall 2007
• Purpose discuss Sensitivity of inputs
  calibration,
• educate Pavement Designers Pavement Managers

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Future FHWA Workshops

• Weighing Impacts of MEPD for Next Generation
  Traffic Data
• Develop in cooperation with FHWA Highway Policy
  Information office
• Pilot planned for Spring 2007
• Purpose To educate the participants on the
  impact of traffic loading on pavement design and
  infrastructure service life
• Audience Pavement designers, traffic
  engineers, weight enforcement officials

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DGIT Enhancement Activities

• Evaluation of the Rigid Pavement Design Procedure
• NCAT Structural Section Studies
• Working with NCHRP
• CTE Ruggedness Study - TFHRC
• FWD Study TFHRC
• Asphalt and Concrete Trailers

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FHWA Other Activities

• DGIT Travel Monitoring Surveys Division of
• Office of Highway Policy Information
• Developed an Update to HPMS Web Based
• Seminar for capturing data inputs used in M-E
• Pavement Design
• Held web based seminar July 6, 2006
• Additional traffic data-related web seminars
• anticipated over next year

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FHWA Other Activities

• DGIT Office of Freight Management / Operations
• Contract with Auburn University
• Models in M-E PD that deal with truck size
  weight
• Assessing impacts of raising weight limits

• FHWA cross-disciplinary cooperation team
• Identify methods to assign cost to
  infrastructure damaged by increased highway load
  limits
• Strive for official FHWA position on this topic

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FHWA Other Activities

• DGIT Office of Infrastructure RD
• Contract w/ Univ. Pittsburgh (Julie
  Vandenbossche)
• Evaluation of the M-E PDG PCC Models and
  detailed
• sensitivity
• Work with a State to use the new procedure

• Contract with the University of Illinois (Imad
  Al-Qadi)
• Stress pulse computed by a viscoelastic model

• FHWA in-house staff study (DGIT)
• Use of dynamic load response data for stress
  pulses
• in instrumented flexible pavements from VA
  Smart
• Road and LTPP SPS sections in OH NC

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FHWA Other Activities
DGIT Office of Infrastructure RD (continued)
New contract (proposed) for award this FY
Analysis of FWD for M-E PDG
rehabilitation design
Graduate Research Fellow from Iowa State
University Micromechanical model for EICM
thermal properties
Graduate Research Fellow (currently
advertised) Enhanced M-E PDG method to apply
input variability
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Implementation

• Lead States Group
• Linda Pierce, WashDOT
• Laura Fenley, WisDOT
• Expert Task Group
• Information Clearing- house
• Tech Bulletins
• Track Activities

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Support Lead States Group
Small business set-aside through FHWA Office of
Pavement Technology
Pavement Design Status Survey status of design
in every state in US for 2006-7 (to update 2003
division office survey)
Collect Summarize DOT Implementation Plans
few plans already received posted on LSG
website, but not concise Distribute Technical
Briefs
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Provide forum for discussion on M-E Pavement
Design

• FHWA Community of Practice website
• Established MEPDG User Comments Database
• Maintained by DGIT
• Questions, technical issues raised forwarded to
  NCHRP
• Success Stories also need positive feedback

http//www.fhwa.dot.gov/pavement/dgit/dgitdata.cfm

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DGIT Contact Info

• Design Guide Implementation Team
• dgit_at_dot.gov
• http//www.fhwa.dot.gov/pavement/dgit/index.cfm

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Any Questions??
dgit_at_dot.gov