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Showing 1 to 14 of 14 for “"Pavement Analysis"”.
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Flexible pavement analysis using physics-informed machine learning methods
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01
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Super Heavy Load Pavement Analysis PaCKage (SuperPACK): Verification and Modification
Super Heavy Load Pavement Analysis PaCKage (SuperPACK(TM)) is an analysis tool that has been under development by the Pavement Engineering and Science (PES) Program. This analysis tool is intended to be the culmination of the Federal Highway Administration (FHWA) study, Analysis Procedures for …
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Dissipated Energy Concepts for HMA Performance: Fatigue and Healing
… relationship allows it to be implemented into a pavement structural (thickness) design procedure. This procedure has the ability to utilize existing pavement response values with mixture properties to generate the PV-Nf relationship validated in this thesis. It also has the future capability of …
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Three-Dimensional Finite Element Analysis of Flexible Pavements Considering Nonlinear Pavement Foundation Behavior
… mechanistic-empirical concepts in the design of pavement structures, state-of-the-art mechanistic analysis methodologies are needed to determine accurate pavement responses, such as stress, strain, and deformation. This research has focused on the nonlinear modulus and deformation behavior of …
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Development of Pavement Performance Evaluation Subroutines for 3D-Move Analysis Software
Predicting the pavement performance of existing and new asphalt concrete (AC) pavements is an important and significant task of pavement engineers. It is important to quantifying the factors (material properties, environmental factors and traffic loading) that lead to the pavement deterioration. …
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Field observations of the early-age behavior of jointed plain concrete pavements
Newly constructed rigid PCC highway pavements with open graded stabilized base courses have been found to develop non-uniform, transverse saw-cut joint-crack developments and extensive slab movement behaviors, which cause unwanted premature joint failures. Phase I of this study determined the …
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Evaluation of asphalt stabilized layer equivalency factors for use in airfield flexible pavement design
… method has been used for Air Force airfield pavement design since the late 1920s. The procedures, calculations, and related nomographs have been updated to reflect developments in the pavement design, pavement analysis, and unique landing gear configurations and load levels introduced by new …
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Adjustment factors for MEPDG pavement responses considering three- dimensional analysis and wide-base tire
The Mechanistic-Empirical Pavement Design Guide (MEPDG) provides a superior methodology as compared to its predecessor in the design and analysis of pavement structures. The mechanistic (MEDPG analysis) calculates critical pavement responses due to pavement-tire interactions. On the other hand, the …
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Use of smartphones to measure pavement roughness across multiple vehicle types at different speeds
Measuring pavement roughness has been an important practice for transportation agencies for many years now. Commonly, this measurement is recorded as International Roughness Index (IRI) and is collected via a data collection vehicle (DCV) using a combination of lasers, accelerometers, and a …
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Soft computing based parameter identification in pavements and geomechanical systems
Accurate estimation of road pavement geometry and layer material properties through the use of proper nondestructive testing and sensor technologies is essential for evaluating pavement’s structural condition and determining options for maintenance and rehabilitation. For these purposes, pavement …
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Development of deformable tire-pavement interaction: contact stresses and rolling resistance prediction under various driving conditions
… continuous improvements have been seen in the analysis of flexible pavements, one of the most important factors is still oversimplified: the tire. This can result in costly decisions, such as poor structural road design, incorrect damage prediction, and inappropriate adoption of …
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On Cross-Anisotropy of Flexible Pavement Layer Materials for Improved Pavement Responses
<p>Pavement layer materials are typically assumed to be isotropic in determining pavement responses, such as stress and strain. The main benefit of the isotropic assumption is that stiffness defined by modulus of elasticity (E-value) is equal in all directions. In reality, stiffness along vertical …
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Evaluating the Traffic Speed Deflectometer (TSD) for network-level screening of pavements in Michigan
As state-highway agencies move toward data-driven pavement management, the Traffic Speed Deflectometer (TSD) has emerged as an alternative non-destructive testing (NDT) technology that allows for continuous pavement data collection at traffic speed without having the need for lane closures. Its’ …