Local pavement structures, and a federal study’s results were used to assess the effects on bridges. Three AFT implementation scenarios were analyzed using typical Calif. Provide conceptual-level estimates of the effects of vehicle fleet changes on road and bridge May increase pavement damage and GHG emissions from work to maintain pavements. These alternative fuel trucks (AFTs) may introduce heavier axle loads, which Vehicles (EVs), and fuel cell vehicles (FCVs), and it will shift more quickly to meet state greenhouse “California’s truck fleet composition is shifting to include more natural gas vehicles (NGVs), electric
Pavement design software in usa manual#
It provides information specific to CaliforniaĬonditions to supplement the California Highway Design Manual (HDM), specification documents, and other available.”Įffects of Increased Weights of Alternative Fuel Trucks on Pavement and Bridges. Selection, pavement structural design, environmental life cycle and life cycle costĪssessment, mix design, and construction of in-place pavement recycling projects onįlexible pavements in California.
“This document has been prepared to guide practitioners on project investigation, recycling strategy Guide for Partial- and Full-Depth Pavement Recycling in California. The first step in recalibrating Pavement ME is to perform a sensitivityĪnalysis to identify which variables are most important and to look for results that do not match.” Necessary, recalibrated, which makes sense when considering the climate and materials differences betweenĬalifornia and the rest of the nation. The MEPDG recommends that nationally calibrated models be validated using local data, and if Using Long-Term Pavement Performance (LTPP) sections from throughout the United States, including some fromĬalifornia. The models in the MEPDG are implemented in software called Pavement ME, a program calibrated “The Mechanistic-Empirical Pavement Design Guide (MEPDG) is a comprehensive tool developed in 2002 by theĪmerican Association of State Highway and Transportation Officials (AASHTO) to analyze and design both flexibleĪnd rigid pavements. Pavement ME Sensitivity Analysis (Version 2.5.3). Old software’s fatigue cracking transferfunctions for hot mix asphalt (HMA) on aggregate base, cement-stabilizedīases, and portland cement concrete have been recalibratedusing a new approach for the calibration.”
Pavement design software in usa simulator#
Using accelerated pavement testing data from Heavy Vehicle Simulator (HVS) test sectionsand the WesTrackĮxperiment.The following enhancements and additions are all included in the revised program. CalME 3.0 retains the same incremental-recursive damageĪpproach and the same forms for damage models and transferfunctions as CalME 2.0, which was validated “The CalME flexible pavement simulation and design software program has been completely recoded as a Updates to CalME and Calibration of Cracking Models. Highlights of work that the Caltrans/UCPRC Partnered Pavement Research Center (PPRC) implemented during the 2020-2021 fiscal year.
Partnered Pavement Research Center Annual Report: Fiscal Year 2020-2021.