The accompanying software, aashtoware pavement me design, was released in 2011. This is a proprietary aashtoware computer software product. Trbs national cooperative highway research program nchrp synthesis 457. This document is also intended to help provide guidance for designers using the aashtoware pavement me software. Although the core design process and computational engine have remained the same over the years, some enhancements to the pavement. Implementation of the aashto mechanisticempirical pavement. Aashtoware pavement me design is the next generation of aashtoware pavement design software, which builds upon the mechanisticempirical. Ontarios default parameters for aashtoware pavement me. Darwin is also fast, easy to use, and can streamline many. Material characterization for the mepdg, the focus of this report, is significantly more fundamental and extensive. Recommended thickness design software for roadways. The aashtoware pavement me design is the next generation of the american association of state highway and transportation officials aashto pavement design software, which builds upon the newly developed national cooperative highway research program nchrp mechanisticempirical.
Pavement me design september, 20 the american concrete pavement association acpa has long held the position that fair competition between the pavement industries in surface transportation infrastructure construction and rehabilitation provides the highest returned value to the american taxpayer. Me software will be required to extend these results to routine pavement design evaluations. Using the darwinme mechanistic empirical pavement design guide and cost analysis. Investigation of aashtoware pavement me designdarwinme. E as their latest technological advancement in pavement thickness design. Ontarios default parameters for aashtoware pavement me design. Mepdg design procedures are implemented in the new darwinme software currently under development and scheduled for release in april 2011. Preliminary studies were carried out to determine possible differences between aashtoware pavement me design, mepdg version 1. Software tools and solutions to design concrete pavements. Campus students are required to use it for their design activities.
Further calibration and validation studies are necessary for local highway agencies implementation by. Evaluation of darwin me pavement rutting prediction models using data from albertas pavement management system. Roads a software for pavement design and rate analysis. Local calibration studies on darwinmemechanisticempirical. This document is disseminated under the sponsorship of the pennsylvania department of transportation and the united states department of transportation in the interest of information exchange. Oklahoma state university conducted by department of civil engineering university of arkansas department of civil and environmental engineering oklahoma state university. Chapter two mechanisticempirical pavement design guide and. It is built upon the nchrp mechanisticempirical pavement design. Implementing mechanistic empirical pavement design and. In 2010, adot contracted with applied research associates, inc. Aashtoware pavement me design is the next generation of pavement design software.
Darwinme pavement design software aashto subcommittee. Darwin is developed with microsoft windows visual basic studio. Darwinme pavement analysis and design manual for njdot. Future plans for aashto me pavement design software. Specs, tables, charts, tender, manual, pavement learning course. Sunset planned for 12 months following release of darwinme v2. Implementation of mechanistic empirical pavement design guide mepdg and darwinme software 1. Create initial trial design using pavement me software. Mnpave flexible is a computer program that combines known empirical relationships with a representation of the physics and mechanics behind flexible pavement behavior. Research under the united statescanada joint strategic highway research program and the long term pavement performance study has led to the development of the mechanistic empirical pavement design guide mepdg and its software package known as darwin me. Aashtoware pavement me design is a mechanisticempirical pavement thickness design software that was formerly known as the mechanisticempirical pavement design guide mepdg and darwin me.
The mepdg was subsequently supported by aashtos darwinme and most recently marketed as aashtoware pavement me design software as of february 20. Data preparation for implementing pavementme design darwinme mepdg by kevin d. The objective of this study was to develop a detailed and comprehensive pavement me design user input guide for penndot. Catalog of material properties for mechanistic empirical. The default values included in the mepdg software for resilient. The mepdg pavement design method and the darwinme software are being assessed by a growing number of transportation agencies in the us and canada, and researchers in many jurisdictions have published results from earlier studies. Evaluation of darwinme pavement rutting prediction models. Pavement designanalysis software university of idaho.
Mnpave flexible minnesota department of transportation. Association of asphalt paving technologists 297 views 2. The aashto mechanisticempirical pavement design guide mepdg pavement performance models and the associated aashtoware pavement design software of darwinme are nationally calibrated using design inputs and distress data largely from the national longterm pavement performance ltpp. Ncat report 14 08 recalibration procedures for the. This webinar series was presented from december 19, 2012 through march 14, 20. Approximately 80% of all states use the aashto pavement design procedures, with the majority using the 1993 version.
Therefore, to support the implementation of darwinme and provide related pavement design guidelines for dotd design engineers, there is an urgent need to evaluate the darwinme pavement design software based on typical louisiana pavement structures and local conditions. Implementation of the aashto mechanisticempirical pavement design guide and software documents the experience of transportation agencies in the implementation of the 2008 american association of state highway and transportation officials aashto mechanisticempirical pavement design guide. Subsequently, they renamed the software aashtoware pavement me design. Pavement design guide mepdg and its companion software, darwinme. Submission of interest information topic 4406 guide. The mechanistic portions of the program rely on finding the tensile strain at the bottom of the asphalt layer, the compressive strain at the top of the subgrade, and the maximum. Darwin is compatible with all current microsoft windows operating systems. Sunset planned for december 2011 which is 12 months following the expected release of darwinme v2. The use of darwin under windows emulators for macos or linux has been reported by several users but we have not tested these compatibilities.
It reflects a change in the methods and procedures engineers use to design pavement structures by taking advantage of the advances in material mechanics, axleload spectra and climate data for. Development of darwinme design guideline for louisiana pavement design. Pavexpress is a free online tool to create pavement designs using key engineering inputs, based on the aashto 1993 and 1998 supplement pavement design process and equations. Key words mechanistic empirical pavement design, pavement performance, hot mix asphalt, jointed concrete pavement. Aashtoware pavement me design aashtoware pavement me design v2. Chapter two mechanisticempirical pavement design guide and aashtoware pavement me design software overview. This user guide is intended to help pavement designers use the pavement me design software to design the pavement crosssection on mdot projects. Provide the transportation community with a production level, stateoftheart software tool for the analysis of new and rehabilitated pavement structures consistent with aashtos mechanistic empirical pavement design guide. Investigation of aashtoware pavement me designdarwin. I am extremely interested and hopeful of being selected to conduct this synthesis study dealing with the implementation of the mepdg in. Pavement me design mepdgdarwinme is a significant advancement in pavement design, but requires much more inputs from various sources. Aashtoware pavement computational software, pavement me design formerly darwinme. Ontarios default parameters for aashtoware pavement me design interim report.
Implementation and use of mechanisticempirical me pavement design duration. Darwin me pavement analysis and design manual for njdot. Design a flexible pavement using different design procedures. The vehicle class distribution should be site specific. These 2 hour webinars covered the following topics. Further calibration and validation studies are necessary for. Penndot pavement me design preliminary user input guide.
Although the core design process and computational engine have remained the same over the years, some enhancements to the pavement performance prediction models have been implemented along with other documented changes as the mepdg transitioned to aashtoware pavement me design software. The software and accompanying documentation 4, represents a tremendous leap forward from the 1993 design guide 2 and software, darwin. It provides details on software operation, design types to be used with me, the inputs to be used, and how to assess the design results. Implementing mechanistic empirical pavement design and darwinme.
National academies of sciences, engineering, and medicine. Roads a software for pavement design and rate analysis of. Acpas perspective is that pavement me is currently the most comprehensive and scientific approach to developing comparable pavement designs. Local calibration of the mechanisticempirical pavement. Chapter two mechanisticempirical pavement design guide.
It should also be noted that in 2008, aashto released the mechanisticempirical pavement design guide. Mdots past, present, and future with me pavement design. The mepdg was subsequently supported by aashtos darwinme and most recently marketed as aashtoware pavement me design. Implementation of the aashto mechanisticempirical pavement design guide and software. Additional calibration efforts using the recently released darwin.
Implementation of the aashto mechanisticempirical pavement design guide and software documents the experience of transportation agencies in the implementation of the 2008 american association of state highway and transportation officials aashto mechanisticempirical pavement design. Aashto introduces the new aashtoware project user website, october 23, 2019. Once darwin software had been implemented, the previously mentioned classical topics remained the same. The mechanisticempirical pavement design guide mepdg was developed under national cooperative highway research program nchrp project 7a as a novel mechanisticempirical procedure for the analysis and design of pavements.
Data preparation for implementing pavementme design. Darwin me flexible pavement design and flexible overlay design and. Sunset planned for december 2011 which is 12 months following the expected release of darwin me v2. The aashtoware pavement me design is the next generation of the american association of state highway and transportation officials aashto pavement design software, which builds upon the newly developed national cooperative highway research program nchrp mechanisticempirical pavement design guide mepdg. Consultants may obtain the txcrcpme program from the district pavement engineer or the pavement asset management section of the maintenance division. Though the mepdg is recognized as a technological advance in pavement design, there are costs associated with implementing the new procedure. To assist in the cost effective and efficient design and construction of roadway pavements, njdot presents the following guidance, presentations, web links and examples. High volume secondary roadways average daily traffic adt 10,000 maybe designed using aashtoware pavement me version 2. Through the transportation pooled fund study tpf5242, a fullproduction software prepme with comprehensive database features has. Aashtoware pavement me design is a productionready software tool to support the daytoday operations of public and private pavement engineers. This guide provides useful information on design inputs, software usage, local calibrations, and outputs to. The aashto guide for design of pavement structures aashto, 1993 is the primary document used to design new and rehabilitated highway pavements.
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