ROAD PROFILE USERS GROUP TAHOE, CALIFORNIA

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ROAD PROFILE USERS GROUP TAHOE, CALIFORNIA
AASHTO JOINT TASK FORCE ON PAVEMENTS AASHTO
SUBCOMMITTEE ON MATERIALS
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AASHTO VISION STATEMENT

• AASHTO will be the voice for transportation and a
  catalyst for institutional and technical
  excellence.

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AASHTO MISSION STATEMENT

• AASHTO's mission is to advocate transportation
  policies, provide technical services, demonstrate
  the contributions of transportation and
  facilitate institutional change.

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AASHTO GOALS

• Advocate Transportation
• Provide Technical Services
• Demonstrate the Contributions of Transportation
• Facilitate Institutional Change

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AASHTO ACTION ISSUES

• Protect Funding Guarantees
• Oversight of TEA-21
• Clean Air Act
• National Traveler's Information Number
• Environmental Justice

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AASHTO ACTION ISSUES

• Review DOT's Proposed Planning and
• Environmental Rules
• Streamline the Approval of Projects
• SUPPORT TRANSPORTATION RESEARCH

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SUPPORT TRANSPORTATION RESEARCH

• Provide Increase of 37M/yr for Supplemental
• FHWA Research
• 5M - Safety 10M - Hwy
  Operations
• 8M - Pavements 4M - Planning
• 5M - Structures 5M - Environment

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Thought's for the Day

• "If we don't succeed,we run the risk of failure."
  - Vice President Dan Quayle
• "Verbosity leads to unclear, inarticulate
  things." Vice President Dan Quayle

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National RT Partnership ForumInfrastructure
Renewal

• Business Needs for
• Pavement Engineering

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National Research and Technology Partnership Forum

• Participants
• Federal Highway Administration
• American Association of State Highway and
  Transportation Officials
• Transportation Research Board
• Industry

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Working Groups

• Safety
• Infrastructure Renewal
• Operations and Mobility
• Planning and Environment
• Policy Analysis and
• Systems Monitoring

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Infrastructure Renewal

• Major Program Areas
• Highway Asset Management RT
• Highway Pavement RT
• Highway Structures RT

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Highway Pavements RT

• Critical issues
• From 1970 to 1998 average daily traffic volume
  has increased 130. Average daily loading has
  increased 580.
• Average freight loading is currently increasing
  at 2.7 per year.

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Highway Pavements RT

• Critical issues
• Just in time delivery has increased from 10 in
  1990 to over 60 in 2000.
• Of every dollar invested in highways more than 50
  cent goes to pavements.

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Highway Pavements RT

• Critical issues
• Earmarking of pavement RT funding has directed
  significant efforts to special interest
  activities.
• Growing need to identify and understand factors
  that contribute to pavement performance and to
  predict performance.

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Highway Pavements RT

• Priority Areas
• Designs and materials for longer life more
  cost-effective pavements
• Less disruptive construction and maintenance
  technologies and technologies to reduce user
  delay while maintaining service and securing work
  zone safety.

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Highway Pavements RT

• Priority Areas
• Safer more environmental friendly pavements
• Education, communication, and job training.
• Promotion and delivery of innovation

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Designs Materials for Longer-lived More
Cost-effective Pavements.

• Research Needs
• Accurate prediction of pavement performance over
  extended periods under severe loading conditions.
• Reliable data on pavement performance.
• Equipment to accurately assess pavement condition
  at highway speed.
• Understanding the interaction of design,
  construction, materials, traffic and environment.

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Safer, Environmental Friendly Pavements

• Research Needs
• Pavement surface properties noise, friction,
  stability/durability, visibility and aesthetics.
• Understanding vehicle/pavement interaction
  noise, handling and traction.
• Impacts to adjoining business and communities.

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Promotion and Delivery of Innovation

• Research Needs
• Move results of research into practice as soon as
  possible.
• Programs to test, evaluate and refine research
  findings into user friendly products ready for
  easy, reliable application.

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Thought's for the Day

• "I believe we are on an irreversible trend toward
  more freedom and democracy - but that could
  change."
• "For NASA, space is still a high priority."
  
• Vice President Dan
  Quayle

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AASHTO Joint Task Force on PavementsOct 1-3,
2000Irvine, California

• Business Needs For Pavement Engineering

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Business Needs for Pavement Engineering

• National Workshop
• AASHTO Joint Task Force on Pavements
• Objectives
• Develop a Strategic Plan for Pavements Technology
  
• Identify priorities for Standing Committee on
  Research for NCHRP

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Principal Focus Areas

• Achieving Desired Performance Levels and Life
• Supporting Effective Management of Pavement
  Assets
• Minimizing Adverse Impact to Users
• Enhancing Practitioner Knowledge and User
  Understanding of Pavements

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Achieving Desired Life Performance Levels

• Objectives
• Accurate and reliable functional (ride, noise,
  safety) pavement performance prediction
  methodologies
• Improved tools, materials, and processes to
  design construct, maintain, and manage pavements
  that provide an acceptable level of service over
  a longer service life than traditionally expected
  while reducing life cycle costs.

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Effective Management of Pavement Assets

• Building Blocks
• Identify data needs (climate, traffic, as-build
  design and materials)
• Data collection methods (quality, consistency,
  and standardization)
• Integration and development of new data
  collection tools
• Improved management of data bases

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Effective Management of Pavement Assets

• Building Blocks
• Calibration procedures of national guidelines to
  a particular State or locality
• Identification of critical performance measures
• Guidelines for development of feedback loops

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Effective Management of Pavement Assets

• Building Blocks
• Linkage of project and network systems
• An integrated management system that encompasses
  all major management systems (maintenance,
  safety, construction, and pavement)
• Decision making models with training and
  awareness efforts for different levels within the
  organization

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Thought's for the Day

• "It's clearly a budget. It's got a lot of numbers
  in it."
• "We ought to make the pie higher."
• President George W.
  Bush

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AASHTO ProtocolsbyCarl Bertrand, TxDOT

• 11th Annual Road Profilers Users Group Meeting
  1999

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PROVISIONAL PROTOCOLS(Were being Re-Balloted)

• Quantifying Roughness on Pavements (AASHTO
  PP37-99)
• Determining Max. Rut Depth in ACP (AASHTO
  PP38-99)
• Estimating Faulting of Concrete Pavements
  (AASHTO PP39-99)

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12th AASHTO ProtocolsbyKen Fults, TxDOT

• 12th Annual Road Profilers Users Group Meeting
  2000

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PROTOCOLS

• Pavement Roughness PP37-00
• Rut Depth PP 38-00
• Faulting PP 39-00
• Cracking in AC Surface PP 44-00
• Has not passed AASHTO balloting

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AASHTO Provisional Standards for Measuring
Pavement Condition

• A Roadmap for
• Quality Data Collection

OCTOBER 30, 2000
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What We Agreed On

• Standards can improve quality of data collection
• We need QA/QC and validation/certification
  procedures
• Vendors
• Willing to assist in the implementation
• Will work with AASHTO Joint Task Force to improve
  Standards
• Cost savings are possible with full implementation

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Action Plan

• Priority 1 QC/QA and certification for
  roughness
• Priority 2 Refine cracking standard to allow
  adoption by AASHTO
• Priority 3 Rut depth definition and resolution
• Priority 4 Faulting definition and resolution
• Priority 5 QC/QA and certification for other
  Standards

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Funding

• NCHRP 20-7
• FHWA may fund QC/QA work

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NCHRP WORKSHOP

• NCHRP 20-51(01)
• August 25-28, 2001
• Irvine, California
• REPORT PENDING

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Thought's for the Day

• "I was raised in the West. The west of Texas.
  It's pretty close to California. In more ways
  than Washington, D.C., is close to California."
• "I understand small business growth. I was one."
• President George W.
  Bush

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FHWA SMOOTHNESS ETG

• Mark Swanlund, FHWA
• David Law, FHWA
• Laurin Lineman, Fed Lands
• Bruce Wasill, Fed Lands
• Starr Kohn, Consultant
• Dan Frentress, ACPA

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FHWA SMOOTHNESS ETG

• John Andrews, Maryland DOT
• Steve Karamihas, Univ. of Michigan
• Kevin McGehee, Virginia DOT
• Jim Delton, Arizona DOT
• Ken Fults, Texas DOT

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FHWA SMOOTHNESS ETG

• September 3-6, 2001 / Plymouth, Michigan
• October 28, 2001 / Tahoe, California
• PRODUCTS
• Equipment Specification
• Certification Procedure
• Test Method
• Boiler Plate Specification Document

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EQUIPMENT SPECIFICATION

• High Speed - 15 to 70 mph
• Low Speed - 5 to 20 mph
• Automatic Triggering Required with Repeatability
  of 6 inches
• Accommodate Wavelength - 6" to 300'
• Obtain Store data at Minimum Increments of 1
  Reading per 2 Inches

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EQUIPMENT SPECIFICATION

• Provisions to Facilitate Calibration of
  Transducer Signals
• Alarm System to Alert Operator of Out-Of-Range
  Signals
• Capable of measuring IRI from 5 - 300 inches per
  mile
• Height Sensor Resolution of 0.001 inch

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EQUIPMENT SPECIFICATION

• Minimum of 1 accelerometer per height sensor
• Auto Execution Function

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INTERIAL PROFILER CERTIFICATION

• Required for Each Separate System
• Required after Major Component Repair or
  Replacement
• Includes both Static and Dynamic Tests
• Static Tests
• Vertical Height Sensor Check
• Horizontal Distance Check

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INTERIAL PROFILER CERTIFICATION

• Height Sensor Compliance - Average of Absolute
  Difference of 10 checks lt 0.01"
• Distance Check - Average of Absolute Difference
  of 3 runs over 1000' lt 1.0'
• Dynamic Tests
• Performed on 2 different Roughness Test
  Sections

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INTERIAL PROFILER CERTIFICATION

• Test Section Profile determined by 3rd Order
  Survey
• 10 Repeat runs per Test Section by Equipment
• Standard Deviation of Test Runs lt 3.00
• Point-to-Point profile difference ?0.010 inch

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INTERIAL PROFILER CERTIFICATION

• Average of Absolute Difference lt 0.060 inch
• IRI's determined from profile data and Standard
  Deviation lt 3.0 in/mi.
• Average Absolute Difference from Average IRI and
  Reference lt 6.0 in/mi.

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INTERIAL PROFILER TEST METHOD

• 20 pages Counting

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Test Method Scope

• Procedures for Operation
• Verification of Calibration
• Evaluation Procedures
• Identification of Bumps
• Dispute Resolution

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INTERIAL PROFILER CONSTRUCTION SPECIFICATION

• UNDER DEVELOPMENT

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AASHTO-AGC-ARTBATASK FORCE 45

• Develop AASHTO Standards, Equipment Certification
  Programs, QA/QC Procedures for Condition Data
  Collection and Reporting.
• Chair Parker Williams, State Highway
  Administrator for Maryland DOT

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Thought's for the Day

• "The senator has got to understand if he's going
  to have - he can't have it both ways. He can't
  take the high horse and then claim the low road."
• "I know how hard it is to put food on your
  family."
• President George W.
  Bush

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Development of the 2002 Guide for the Design of
New and Rehabilitated Pavements

• Project Overview
• Ken Fults

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Objective

• Develop and deliver the 2002 Guide for design
  of new and rehabilitated pavement structures
• Based on mechanistic-empirical principals
• Accompanied by the necessary computational
  software

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Scope of 2002 Guide

• Procedures for pavement design/analysis
• Procedures for evaluating existing pavements
• Recommendations on rehabilitation treatments,
  subdrainage, and foundation improvements

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Scope of 2002 Guide

• Procedures for LCCA, reliability, and traffic
  analysis
• Procedures for calibrating for local conditions
• Guidance for developing agency-specific
  procedures/catalogs

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Key Staff
Principal Investigator John P. Hallin
CO-PI Kenneth McGhee
Flexible Pavement Matthew W. Witczak
Rigid Pavement Michael I. Darter
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Smoothness Prediction

• IRI is predicted over time as a function of the
  key distress types predicted by the analysis
  procedure

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Project Schedule
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Thought's for the Day

• "A low voter turnout is an indication of fewer
  and fewer people going to the polls."
• Vice President Dan
  Quayle