Aashto pavement design manual 1993

The NJDOT Research Division Companion Guide to the AASHTO Guide for Design of Pavement Structures CD-ROM project was created to develop an innovative and effective tool to assist pavement designers with step-by-step pavement design instructions. PAVEMENT DESIGN EQUATIONS The AASHTO design equations as presented in the AASHTO Interim Guide for Design of Pavement Structures, are to be used for the design of both flexible and rigid pavements. Flexible Pavement Designs Flexible Design Equation log(W18)=Z ∗ + ∗log(SN+1)−+ log[∆𝑃 −] + Persons using these guidelines are responsible for their proper use and application in concert with the AASHTO “Guide for Design of Pavement Structures – ”. The AASHTO Guide may be ordered by phone () or via the internet (www.doorway.ru).Estimated Reading Time: 20 mins.

The AASHTO design procedure is based on empirical equations derived from the AASHO Road Test conducted in the late 's in a test track in Ottawa, Illinois. The test provided very useful information for the design of pavement at that time. The AASHTO Guide is based on the empirical relationships developed for the data collected in the AASHO Road Test in the early 's. A newer pavement design method, called the Mechanistic-Empirical Pavement Design Guide (MEPDG) was developed by the National Cooperative Highway Research Program to provide a more efficient and accurate. The AASHTO Guide for Design of Pavement Structures (AASHTO, ) is the primary document used to design new and rehabilitated highway pavements. Approximately 80% of all states use the AASHTO pavement design procedures, with the majority using the version. All versions of the AASHTO Design Guide are empirical design methods based on field performance data measured at the AASHO Road Test.

Guidelines For AASHTO Pavement Design May Pavement Design and Evaluation Section Page 9 Load Transfer Factors New Pavement Designs and Unbonded PCC Overlays with Load Transfer Devices VDOT Value for Design Pavement Type Asphalt Shoulder Tied PCC Shoulder or Wide Lane Jointed Plain Jointed Reinforced Continuously Reinforced Overlays Designs on Existing Pavements For AC overlays on existing PCC pavements and bonded PCC overlays, determine the appropriate J. manual to the AASHTO Guide for Design of Pavement Structures. The research team developed a framework for the companion manual that met NJDOT’s requirements. The manual chapters, sections, and procedur es were set -up similar to those in the AASHTO Guide for Design of Pavement Structures, to allow for easy referencing. New. PAVEMENT DESIGN EQUATIONS The AASHTO design equations as presented in the AASHTO Interim Guide for Design of Pavement Structures, are to be used for the design of both flexible and rigid pavements. Flexible Pavement Designs Flexible Design Equation log(W18)=Z ∗ + ∗log(SN+1)−+ log[∆𝑃 −] +