AASHTO Asset Management Task Force
NCHRP 20-7
Proposed Research Needs Statement
AASHTO Technical Committee on Geometric Design
Mr. Jeff C. Jones, P.E., Chair
March 29, 2016
TITLE
Update of the AASHTO Policy on Geometric Design of Highways and Streets (Green Book).
BACKGROUND / NEEDS STATEMENT
The AASHTO Technical Committee on Geometric Design is currently working on an update of the AASHTO Green Book, one of the premier highway design publications in the world. Each chapter has been assigned to one of 10 “Lead Chapter Authors” and a team of 3-5 supporting committee members to review applicable research that has been conducted since the last complete update of the Green Book in 2011 and incorporate, as appropriate, suitable language and guidance to further the state-of-the-practice in highway and road design.
However, considering the continually increasing workload of our State DOT volunteers on these committees, pulling together the final text and ensuring completeness and accuracy throughout the 1,000-page document is beyond the capability of the committee to accomplish on its own. In addition, since the document is being updated by multiple authors, it is important to have a single, knowledgeable researcher/engineer provide a review of the technical information in the various sections of the text to ensure that the incorporation of new information is accurate and complete.
RESEARCH OBJECTIVE
The primary objective of this research is to ensure that consistent and accurate technical information is incorporated throughout the update to the AASHTO Policy on Geometric Design of Highways and Streets and to produce a final draft version of the guide for formal balloting by AASHTO.
WORK TASKS
The scope of the proposed project includes the following tasks:
1. Attend the Technical Committee on Geometric Design meetings in July 2016 and possibly January 2017 to meet with the lead chapter authors and discuss research that has been incorporated into the forthcoming Green Book update.
2. Propose additional research or language that may have been overlooked by the technical committee chapter teams.
3. Conduct a final review of all draft material for accuracy of content and consistency between chapters and throughout the document.
4. Prepare a final draft version of the Policy on Geometric Design of Highways and Streets for ballot by the Technical Committee on Geometric Design, Subcommittee on Design, and the Standing Committee on Highways.
5. Assist the Technical Committee in the review and resolution of comments generated during the balloting process.
URGENCY
Approval of this 20-7 proposal at the AASHTO Spring 2016 meeting will allow the Green Book Technical Editor to be under contract and available to begin immediately following the July 12-15, 2016 AASHTO Technical Committee on Geometric Design meeting in Woods Hole, MA.
FUNDING REQUESTED AND TIME REQUIRED
It is estimated that this research will take 12 months to complete and will require funding of $100,000.
CONTACT PERSON
Mr. Jeff C. Jones, P.E.
Chair, AASHTO Technical Committee on Geometric Design
Assistant Chief Engineer, Tennessee Department of Transportation
Suite 700, James K. Polk Bldg.
505 Deaderick Steet, Nashville, TN 37243
Phone: (615) 741-2831
E-mail: jeff.c.jones@
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