Aashto 1993 flexible pavement design software software#
Aashto 1993 flexible pavement design software series#

Aashto 1993 flexible pavement design software software#

The estimated parameters were applied to the AASHTO Guide and DARWin (Trademark) 2.01 software which resulted in thicknesses for each layer of the typical flexible pavement structures in Rhode Island. The drainage coefficient of the subbase materials ranged from 0.8 to 1.0 and the average is 0.9. The drainage coefficients of the subbase materials were determined using the method recommended by AASHTO Guide. The coefficients for subbase materials ranged from 0.09 to 0.22 with an average of 0.15 and bound layer from 0.34 to 0.47 with an average of 0.39. Performs civil engineering calculations for traffic/road geometry. Aggregate Skeleton Characterization Contact plane orientation. Stand alone software version of the pavement design portion of the CE CALC website. Using iPas-2 Software Contact zones Contact length. less compared to traditional flexible pavement. Layer coefficients for bound and granular subbase materials were estimated using the method described in the AASHTO Guide. Pavement Design Methods AASHTO 1993 SN a 1 D 1 + a 2 D 2 + a 3 D 3 SN Structural Number. A procedure to estimate the cumulative 18-kip ESAL was developed utilizing the weigh-in-motion (WIM) data in Rhode Island. Prediction equations were developed to determine the resilient moduli under Rhode Island environmental and field conditions.

Aashto 1993 flexible pavement design software series#

A series of laboratory resilient modulus tests were performed on two granular subgrade soils at four temperatures and three moisture contents using the AASHTO T292-91 testing procedure. All the materials showed good soil classification. Representative materials for the state of Rhode Island have been acquired and fundamental testing was done to determine their properties. Effective soil resilient modulus, layer coefficients, and drainage coefficients have been identified as three parameters essential to use the AASHTO Guide in Rhode Island.

Design parameters for use in the flexible pavement design module of the computer program, DARWin (Trademark) 2.01, which is based on the 1993 AASHTO Guide, were determined.

The American Association of State Highway and Transportation Officials (AASHTO) published the 'Guide for Design of Pavement Structures' (AASHTO Guide) in 1986, and updated it in 1993. The MEPDG was used to check the 1993 AASHTO Guide thicknesses at all ESAL levels. The underlying design procedure for the revised design catalog remains the 1993 AASHTO Guide. DEVELOPMENT OF FLEXIBLE PAVEMENT DESIGN PARAMETERS FOR USE WITH THE 1993 AASHTO PAVEMENT DESIGN PROCEDURES CHAPTER 2 DESIGN PROCEDURES The 1993 AASHTO Guide and MEPDG were used in combination to help develop a revised WSDOT pavement catalog.