Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ Resilient Modulus of Coarse-Grained Subgrade Soils for Pavement Design https://trid.trb.org/View/2685492 10,000) as an alternative to actual Mr testing. Also, enough fine-grained soils were tested to determine statewide average Mr values to be used in the design of low-volume roadways (annual average daily traffic < 10,000). However, no statewide average Mr values or correlations are currently available for coarse-grained soils (A-1, A-2, and A-3). Although some actual measured Mr values of coarse-grained soil are available, they are significantly less than AASHTO-recommended Mr values (MEPDG default), which needs to be further investigated. During this study, six coarse-grained soil samples were tested for Mr at standard Proctor compactive effort: three A-2-4, one A-2-6, and two A-3. The Mr values at a confining pressure of 2 psi and a deviator stress of 6 psi were less than MEPDG-recommended default values, but they are comparable with measured values reported in the literature. Sample compaction density and moisture influenced the Mr values. The Mr value of any coarse-grained soil showed a decreasing trend with increasing degrees of saturation, a combining measure of compaction density and moisture. A few soil index properties showed good correlation with Mr values. A predictive model could not be recommended because of limited data points, that is, only six soil samples.]]> Mon, 30 Mar 2026 11:10:36 GMT https://trid.trb.org/View/2685492 Characterization of damaged modulus master curves for asphalt pavement rehabilitation https://trid.trb.org/View/2603254 Wed, 12 Nov 2025 09:35:16 GMT https://trid.trb.org/View/2603254 Development of a Flexible Pavement Database for Local Calibration of MEPDG https://trid.trb.org/View/2582911 Tue, 21 Oct 2025 11:36:25 GMT https://trid.trb.org/View/2582911 Laboratory Dynamic Modulus of Asphalt Mixes and Resilient Modulus of Soils throughout New Mexico for the Implementation of Mechanistic Empirical Pavement Design Guide Part 1: Laboratory Dynamic Modulus of Asphalt Mixes https://trid.trb.org/View/2582901 Mon, 20 Oct 2025 16:28:11 GMT https://trid.trb.org/View/2582901 Determining Fatigue Endurance Limits of New Mexico Asphalt Mixes for Designing Perpetual Pavements and Implementations of MEPDG to its Full Capacity Part I: Final Report https://trid.trb.org/View/2582900 Mon, 20 Oct 2025 16:28:11 GMT https://trid.trb.org/View/2582900 Laboratory Dynamic Modulus of Asphalt Mixes and Resilient Modulus of Soils throughout New Mexico for the Implementation of Mechanistic Empirical Pavement Design Guide; Part 2: Laboratory Resilient Modulus of Soils https://trid.trb.org/View/2582902 Mon, 20 Oct 2025 16:28:11 GMT https://trid.trb.org/View/2582902 Advanced Statewide Calibration of MEPDG for NMDOT https://trid.trb.org/View/2582889 Sun, 12 Oct 2025 17:09:00 GMT https://trid.trb.org/View/2582889 Improving the Long-Term Condition of Pavements in Massachusetts and Determining Return on Investment: Implementing the AASHTO Mechanistic-Empirical Pavement Design Guide - PHASE III https://trid.trb.org/View/2602549 Tue, 30 Sep 2025 16:46:53 GMT https://trid.trb.org/View/2602549 Evaluation of Equipment, Methods, and Pavement Design Implications for Texas Conditions of the AASHTO 2002 Axle Load Spectra Traffic Methodology: Literature Review and Level 1 Data https://trid.trb.org/View/2571785 Tue, 26 Aug 2025 10:41:37 GMT https://trid.trb.org/View/2571785 Evaluation of Equipment, Methods, and Pavement Design Implications of the AASHTO 2002 Axle Load Spectra Traffic Methodology https://trid.trb.org/View/2571784 Tue, 26 Aug 2025 10:41:36 GMT https://trid.trb.org/View/2571784 Long-Term Performance Evaluation of Recycled Concrete Aggregate as a Base Material in Flexible Pavements https://trid.trb.org/View/2582345 Tue, 29 Jul 2025 13:55:14 GMT https://trid.trb.org/View/2582345 Assessment of the impacts of climate change on cold region pavement design and operation https://trid.trb.org/View/2563739 Thu, 24 Jul 2025 11:29:30 GMT https://trid.trb.org/View/2563739 Impact of Truck Platoon Rest Period on Mechanistic-Empirical Flexible Pavement Design https://trid.trb.org/View/2556774 Fri, 23 May 2025 15:34:15 GMT https://trid.trb.org/View/2556774 Development of ME Pavement Design for Cementitious Material Reinforced Subgrades https://trid.trb.org/View/2507251 Mon, 10 Feb 2025 14:14:54 GMT https://trid.trb.org/View/2507251 RES2020-16: Evaluating Performance and Benefits-Costs of Road Diets in Tennessee https://trid.trb.org/View/2499160 Wed, 29 Jan 2025 15:57:47 GMT https://trid.trb.org/View/2499160