Current practice is aashto 1993 pavement design guide developed based on road tests from 195860 limitations 1950s materials, traffic,and construction methods one subgrade type a6 one environment ottawa illinois only 2 years of service limited traffic environment one pcc and hma mix. Pavement thickness design evolves with latest software. The american association of state highway and transportation officials has released a new publication. The aashto 1993 rigid pavement design guide was updated in 1998 with a supplement improving the method for design of concrete pavements. The software only asks users for inputs required to create technically sound. This is the design thickness used in other calculations an b rigid pavement design based on aashto supplemental guide reference. Overall standard deviation so so is the coefficient which describes how well the aashto road test data fits the aashto design equations. Flexible pavement design, calculator, sn, aashto design, structural numberfree, free download, 2017,civil engineering, courses, articles. The american concrete pavement association presents a new video that shows the features and benefits of, the cement and concrete industrys concrete pavement thickness design platform that allows users to design pavements free of charge using a computer or other digital devices the program was created for city, county, and consultant engineers.
The accompanying software, aashtoware pavement me design, was released in 2011. Specs, tables, charts, tender, manual, pavement learning course. The results obtained from this software were analyzed and compared with the theoretical manual design and with the darwin, a design software of aashto, and were found absolutely feasible and. Ncat report 14 04 flexible pavement design state of. In 2010, adot contracted with applied research associates, inc. While use of this empirical method has been successful, it has several generally acknowledged shortcomings. Road details in autocad and rate analysis of 498 items of road works, std. The pavement me deflection data analysis and backcalculation tool is a standalone software program that can be used to generate backcalculation inputs from falling weight deflectometer fwd files to the aashto pavement me design software for rehabilitation design. Performs civil engineering calculations for traffic road geometry, surveyingearthwork, pavement, concrete floors and unit c download transportation engineering software pavement calculator 2.
Accessible via the web and mobile devices free no cost to use based on aashto pavement design equations userfriendly share, save, and print project designs. Pavement calculator pavement design calculator software. Aashtoware pavement me design is the next generation of pavement design software. The aashto originally aasho pavement design guide was first published as an interim guide in 1972.
Aashto rigid pavement trial section rigid pavement esal loading, rigid. The lower the overall deviation, the better the equations model the data. Nov 10, 2014 pavexpress, a webbased pavement scoping tool that simplifies the design of flexible and rigid pavements, is also based on aashto 93. Aashto issues revised pavement design guide aashto journal. Sunset planned for december 2011 which is 12 months following the expected release of. The 1993 aashto guide for the design of pavement structures and previous versions is one of the primary documents used by state highway agencies for designing new and rehabilitated pavements. Aashto introduces the new aashtoware project user website, october 23, 2019. A webbased procedure is described for preparing routine.
Use of the 1993 aashto guide, mepdg and historical. This time the method was not based upon data obtained from the aashto road test but on the ltpp database nchrp project. Key topics include the longstanding me pavement design guide as well as the aashtoware pavement me design program. Secondly, this technical summary describes the key crcp design inputs to assist the pavement engineer through the crcp design process with the aashto pavement me design software, including identifying the most sensitive design inputs and features. Based on engineering mechanics that have been validated through extensive road test performance data, the manual references aashtoware pavement me design and me pavement crafted as part of the aashtos software development program. Streetpave 12 is the latest in jointed plain concrete pavement thickness design. This spreadsheet will perform the calculations required by chapter 54 of the bde manual to determine a design thickness and conduct a lifecycle cost analysis. Pavement designanalysis software university of idaho. Designing the right pavement for the job got easier thanks to pavexpress, a free. Pavement design highway users have an increased awareness of pavement quality. Introduction empirical design based on the aasho road test. Christos drakos university of florida topic 10 aashto rigid pavement design 1. The aashto design procedure is based on the results of the aasho road test conducted from 19581960 in. Miraspec allows the designer to perform flexible pavement structural number sn and equivalent single axle load esal calculations based on aashto american association of state highway and transportation officials 1993 design method and gravel thickness and cost savings comparisons using the giroudhan 2004 design method.
Stand alone software version of the pavement design portion of the ce calc website. Software tools and solutions to design concrete pavements. Aashto 1993 pavement design spreadsheet civilweb spreadsheets. Pavement design resources flexible pavements of ohio. Pavement design free pavement design software download. Aashto rigid pavement design spreadsheet civilweb spreadsheets. Campus students are required to use it for their design activities. A way that used the accepted methodology of the aashto pavement design. Flexible pavement design according to the aashto 1993 guide can be very time consuming.
Both versions of the software are available as free downloads. Newly added with this version is jointed plain concrete overlay designs for all six types bonded on ashpalt, unbonded on asphalt, bonded on concrete, unbonded on concrete, bonded on composite, unbonded on compsosite. As aashto is no longer supporting the darwin software and 1993 design guide, many agencies are grappling with how best to make the transition from their existing. The software simplifies the process of using both the 1993 aashto design guide for asphalt pavements and 1998 aashto supplement for concrete pavements. By default, the tool uses a layer coefficient a of 0. Pavia systems, with sponsorship from the asphalt pavement alliance apa and its constituent members, has developed free online pavement thickness design software called pavexpress. In other words, there must be some assurance that a pavement will perform as intended given. Roads a software for pavement design and rate analysis. Pavement thickness design evolves with latest software asphalt. Asphalt design software serving the needs of liquid asphalt manufacturers and. Updates to the guide were subsequently published in 1986 and 1993. The aashto 1993 method is based on an empirical equation developed from road performance information gathered from the aashto road test. With rpd you can perform the verification procedures by empirical methods as proposed by aashto in the document guide for design of pavement. Based on engineering mechanics that have been validated through extensive road.
It identifies key inputs specific to pavement design of kentuckys roadways. Software development pakpave for flexible pavement design. It is a pavement engineering program which is used to analyse flexible pavement. This revised manual provides an overview of the methodology termed mechanisticempirical or me pavement design.
Geotechnical aspects of pavements reference manual appendix c. A simplified pavement design tool county engineersmd. Perroad software perpetual pavement design software the apa offers two versions of its software for the design and analysis of perpetual pavements. The 1993 aashto guide for the design of pavement structures and. The aashto guide for design of pavement structures aashto, 1993 is the primary document used to design new and rehabilitated highway pavements. The lifecycle cost of a road includes considerations such as the initial cost of. Pavexpress webbased scoping tool eases pavement design. Pavexpress, a webbased pavement scoping tool that simplifies the design of flexible and rigid pavements, is also based on aashto 93. Aug 09, 2011 road details in autocad and rate analysis of 498 items of road works, std. The design process is based on the predictive performance of a pavement section to be designed to predefined parameters identified as failing. Idot mechanistic pavement design and lifecycle cost analysis. The aashto pavement design guide provides one of the most commonly used methods of rigid. Rpd road pavement design software for the verification of road flexible and semirigid pavements. Roads a software for pavement design and rate analysis of.
The aashto design procedure is based on the results of the aasho road test conducted from 19581960 in ottawa, illinois. Rigid pavement design software for the 1998 supplement to the aashto guide for design of pavement structures, part ii. The fourth aashto pavement me national users group meeting last week provided engineers and other stakeholders the opportunity to discuss issues related to mechanisticempirical me pavement design. Pavement calculator pavement design calculator software cesdb. Pdf software development pakpave for flexible pavement design. To help agencies and contractors meet the demand for highquality pavements, napas asphalt pavement magazine regularly provides articles that directly address issues such as mix type selection and statistical specifications pavexpress is a free, webbased tool for the structural. This appendix contains guidance for designing new and reconstructed pavement for kytc using aashtowares pavement me software for mechanisticempirical design. Rpd is a software that implements automatic procedures for pavements verification calculations. The mepdg is designed to update the 1993 aashto guide for design of pavement structures, which is primarily based on empirical observations from the aasho road test that began in the 1950s. The 1993 aashto guide for the design of pavement structures and previous versions is one of the primary documents used by state highway agencies.
Pavement design processes pavement design spreadsheets. The spreadsheet breaks the design process into 10 steps and is designed to prompt the user for. Over 200 test sections jpcp 15 spacing and jrpc 40 spacing range of slab thickness. The results obtained from this software were analyzed and compared with the theoretical manual design and with the darwin, a design software of. For most state highway agencies, the current primary pavement design tool is the 1993 aashto guide for design of pavement structures the 1993 aashto guide 1. This spreadsheet will perform the calculations required by chapter 54 of the bde manual to determine a design thickness and conduct a lifecycle cost analysis pcc inlay overlay design spreadsheet. The reliability of the pavement design performance process is the probability that a pavement section designed using the process will perform satisfactorily over the traffic and environmental conditions for the design period aashto, 1993 1. The simplified pavement design tool is based upon design equations from the 1993 aashto guide for the design of pavement structures and the 1998 supplement to the aashto guide for the design of pavement structures.
Calculate proper pavement thickness with free online tool. It should also be noted that in 2008, aashto released the mechanisticempirical pavement design guide. Perpetual pavement design software the asphalt pavement alliance apa offers two versions of its software for the design and analysis of perpetual pavements. To help agencies and contractors meet the demand for highquality pavements, napas asphalt pavement magazine regularly provides articles that directly address issues such as mix type selection and statistical specifications. It is built upon the nchrp mechanisticempirical pavement design. A free, online tool to help you create simplified pavement designs using key engineering inputs, based on the aashto 1993 and 1998 supplement pavement design process. Aashtoware pavement me design is the next generation of aashtoware pavement design software, which builds upon the mechanisticempirical pavement. The mepdg is designed to update the 1993 aashto guide for design of pavement structures, which is primarily based on empirical observations from the aasho road.