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    <title>Transport Research International Documentation (TRID)</title>
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    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <title>Inspection and Maintenance Guidelines for Mechanically Stabilized Earth Walls</title>
      <link>https://trid.trb.org/View/2657959</link>
      <description><![CDATA[This report outlines the results of a comprehensive study focused on enhancing maintenance and inspection practices for mechanically stabilized earth (MSE) walls. The project was sponsored by the Arkansas Department of Transportation (ARDOT), and its central objectives were to formulate the best management practices for MSE wall maintenance and develop a comprehensive inspector’s guidebook. To address a gap in the existing literature, the research focused on creating a manual that provides inspection procedures, maintenance guidance, and repair strategies to mitigate distress signs such as panel movement, cracking, and backfill material loss. The methodology encompassed a thorough review of documented MSE wall issues, a nationwide survey yielding insights from 44 state Departments of Transportation, consultations with MSE wall manufacturers, and hands-on site inspections in Arkansas. These efforts were instrumental in creating a geographic information system database cataloging ARDOT's MSE walls, informed by both the survey findings and expert consultation. The resultant maintenance inspector’s guidebook presents a step-by-step inspection framework, grading for distress severity, and tailored repair recommendations. This guidebook was piloted with assistance from ARDOT and was updated as needed to ensure smooth implementation into current maintenance practices within the agency. The project’s multi-faceted approach ultimately seeks to enhance the longevity and reliability of the MSE wall infrastructure and serve as a pivotal resource for maintenance personnel.]]></description>
      <pubDate>Wed, 28 Jan 2026 09:48:33 GMT</pubDate>
      <guid>https://trid.trb.org/View/2657959</guid>
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    <item>
      <title>Update to ARDOT Superpave Gyratory Compaction (SGC) Specification to Increase Pavement Durability</title>
      <link>https://trid.trb.org/View/2630522</link>
      <description><![CDATA[The primary goal of Project TRC2201 was to enhance the durability of asphalt pavements in Arkansas. This was accomplished through two steps: exploring extreme scenarios with laboratory mixtures and comparing eight field sites. Further analysis was conducted using AASHTOWare Pavement Mechanistic Empirical Design (Pavement ME) and a life-cycle cost analysis. In the extreme scenario air voids decreased as Pb and N levels increased; CTIndex increased with rising Pb levels, but Asphalt Pavement Analyzer (APA) rut depth results were inconsistent. Additional testing with moisture damage indicated that mixtures that performed well in IDEAL-CT and APA tests still showed poor resistance to moisture damage. For the eight field projects, laboratory-mixed samples exhibited slightly better crack resistance at lower values, while plant-mixed samples performed slightly better at higher values. No consistent trend in APA rut depth was observed between laboratory and field produced samples. Additional performance tests indicated that some of the Balanced Mix Design (BMD) mixtures could be susceptible to rutting with the additional asphalt binder content, and field validation of APA minimum values should be conducted for these eight projects. Pavement ME analysis revealed that, except for thermal cracking, standard Superpave mixtures performed similarly to the BMD mixtures, with thermal cracking occurring after only 5 years. Using this criterion, adding an extra 0.5% asphalt binder would result in approximately 61% saving over a 20-year period.]]></description>
      <pubDate>Tue, 02 Dec 2025 09:56:42 GMT</pubDate>
      <guid>https://trid.trb.org/View/2630522</guid>
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    <item>
      <title>Arkansas Statewide Transit Asset Management Plan 2022-2026</title>
      <link>https://trid.trb.org/View/2422914</link>
      <description><![CDATA[This Transit Asset Management (TAM) plan provides an outline of how Arkansas Department of Transportation (ARDOT) will assess, monitor, and report the physical condition of assets utilized in the operation of the public transportation system. ARDOT’s approach to accomplish a State of Good Repair (SGR) includes the strategic and systematic process of monitoring, overseeing and providing funding for the improvement of physical assets to identify a structured sequence of maintenance, preservation, repair, rehabilitation, and replacement actions that will achieve and sustain a desired state of good repair over the lifecycle of the assets at a minimum practicable cost. This document shall cover a “horizon period” of time from October 1, 2022 to September 30, 2026. This TAM shall be amended during the four-year horizon period when there is a significant change to staff, assets, and/or operations occurring at the ARDOT group plan agencies, as well as an annual update for each of the four years of the plan.]]></description>
      <pubDate>Wed, 04 Sep 2024 17:08:20 GMT</pubDate>
      <guid>https://trid.trb.org/View/2422914</guid>
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    <item>
      <title>Updating ARDOT Liquefaction Evaluation Procedures</title>
      <link>https://trid.trb.org/View/2422916</link>
      <description><![CDATA[There is a significant amount of uncertainty when designing piles for bridge foundations in liquefiable soil. Currently, Arkansas Department of Transportation (ARDOT) engineers use a standard penetration test (SPT)-based liquefaction spreadsheet developed 10 years ago to evaluate liquefaction triggering. Since this spreadsheet was developed, updates to the liquefaction triggering procedures have been published, making the spreadsheet out-of-date. In addition, recommendations regarding skin friction and end bearing of piles in liquefiable soils have been published, providing additional guidance regarding the design of these piles. Moreover, additional methods of liquefaction evaluation using the cone penetration test (CPT) and shear wave velocity (Vs) provide additional means of evaluating liquefaction potential. This project plans to update ARDOT’s liquefaction triggering evaluation methodology with the newest procedures and incorporate additional empirical liquefaction hazard estimates such as the liquefaction potential index (LPI). This will provide ARDOT with the tools necessary to design pile foundations in liquefiable soils using the most up-to-date guidance and methods.]]></description>
      <pubDate>Wed, 04 Sep 2024 17:08:19 GMT</pubDate>
      <guid>https://trid.trb.org/View/2422916</guid>
    </item>
    <item>
      <title>Ranking of the Commonly Used Aggregate and Asphalt Binder Systems in Arkansas</title>
      <link>https://trid.trb.org/View/2402321</link>
      <description><![CDATA[The Arkansas Department of Transportation (ARDOT) Maintenance Division is concerned about the use of certain aggregates in asphalt mixture because of their durability and performance issues. Good performance of the pavements can be ensured by selecting good-quality aggregates along with asphalt binders that can produce compatible aggregate–binder systems. The primary goal of this research was to determine proper asphalt binders and aggregates for the construction of highways in Arkansas. Three performance grade (PG) asphalt binders, namely PG 64-22, PG 70-22, and PG 76-22, prepared from two different crude sources, were investigated. This study also included four types of ARDOT-commissioned aggregates, namely gravel, sandstone, limestone, and dolomite, from four quarries throughout Arkansas. Selected properties of asphalt binders and aggregates (e.g., physical, mechanical, and chemical) were evaluated by performing a series of routine laboratory tests. To evaluate the performance of the asphalt mixtures, work of cohesion, work of adhesion, and boiling resistance tests were conducted. These aggregates, binders, and aggregate–binder systems were ranked based on the properties obtained from laboratory tests. In general, any combination of dolomite or limestone with a stiffer binder such as PG 76-22 or PG 70-22 is expected to be superior to an asphalt mixture with either sandstone or gravel. The outcomes of this research will help highway agencies and pavement professionals in selecting suitable asphalt binders and aggregates for long-lasting pavement construction.]]></description>
      <pubDate>Wed, 14 Aug 2024 11:01:43 GMT</pubDate>
      <guid>https://trid.trb.org/View/2402321</guid>
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    <item>
      <title>Workforce forecasting for state transportation agencies: A machine learning approach</title>
      <link>https://trid.trb.org/View/2387063</link>
      <description><![CDATA[A decline in the number of construction engineers and inspectors at State Transportation Agencies (STAs) to manage the ever-increasing lane miles has emphasized the importance of workforce planning in these agencies. Forecasting workforce requirements is crucial for effective planning in any industry or agency. This study developed machine learning models to estimate the person-hour requirements of STAs at the project level. The Arkansas Department of Transportation (ARDOT) was used as a case study, using its employee and project details data between 2012 and 2021. Machine learning regression models ranging from linear, tree ensembles, kernel-based, and neural network-based models were developed. These models were compared based on the accuracy of their predictions, the time taken for training the models and their prediction time. Predictions were tested based on the K-fold cross validation technique. The results indicated a high performance from the random forest regression model, a tree ensemble with bagging, which recorded a mean R-squared value of 0.91. Other machine learning models such as an ensemble neural networks model and the linear models also proved to be fit for the problem, attaining R squared value as high as 0.80 and 0.78 respectively. These findings underscore the capability of machine learning models to provide more accurate workforce demand forecasts for STAs and the construction industry. This enhanced accuracy in workforce planning will contribute to improved resource allocation and management.]]></description>
      <pubDate>Mon, 08 Jul 2024 09:08:50 GMT</pubDate>
      <guid>https://trid.trb.org/View/2387063</guid>
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    <item>
      <title>Cone Penetration Test-Based Liquefaction Analysis of Northeast Arkansas</title>
      <link>https://trid.trb.org/View/2335349</link>
      <description><![CDATA[The presence of seismically active New Madrid Seismic Zone (NMSZ) and Mississippi Embayment (ME) in Northeast Arkansas (NEA) puts the region at a liquefaction hazard. In this study, Cone Penetration Test (CPT) data from 131 sites within the NEA are used for liquefaction vulnerability assessments using commercial software. The peak ground acceleration (PGA) is obtained from previous site-specific ground motion response analysis (SSGMRA) using the nearest neighbor method. The moment magnitude (MM) of a design earthquake of 7.6 and the worst condition of the groundwater table (GWT) depth of 1 m are taken in the liquefaction evaluation. The liquefaction potential indices shows the severity of liquefaction during sufficient earthquake triggering, depending on 20 m of surficial deposits. Graphical Information System (GIS) maps based on liquefaction potential indices illustrating geospatial variation of liquefaction have been generated. It is found that multiple counties (Craighead, Greene, and Poinsett) have very high liquefaction potentials, whereas soils in Lee County have a moderate chance to liquefy, and Mississippi and Crittenden Counties are relatively safer against liquefaction. The estimated large deformations in several locations in high liquefaction potential sites put multiple existing bridges inside the NEA at high risk. So, liquefaction consideration in bridge design and maintenance of vulnerable existing bridges maintained by the Arkansas Department of Transportation (ARDOT) is crucial to save life and property. The liquefaction results obtained from contour maps can be used for preliminary analysis but they should be further confirmed through field tests and additional analyses.]]></description>
      <pubDate>Tue, 20 Feb 2024 09:17:08 GMT</pubDate>
      <guid>https://trid.trb.org/View/2335349</guid>
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    <item>
      <title>Cone Penetration Test (CPT) Based Liquefaction Hazard Investigation in Mississippi County of Northeast Arkansas</title>
      <link>https://trid.trb.org/View/2083718</link>
      <description><![CDATA[The interaction of seismically active New Madrid Seismic Zone (NMSZ) and Mississippi Embayment (ME) in Northeast Arkansas (NEA) has a greater chance of liquefaction in the region. Structures like bridges are vulnerable to the liquefaction phenomenon. So, the cone penetration test (CPT) data of 52 sites located within Mississippi County have been used for liquefaction vulnerability assessments using Cliq V.3.4.1.4 software. The values of peak ground acceleration (PGA) and moment magnitude of the earthquake (MM), required for liquefaction assessment, have been obtained from different site-specific ground motion response (SSGMR) analyses. The liquefaction analysis gives liquefied layers for foundation depths to be considered against and values of liquefaction potential indices that illustrate the relative vulnerability of liquefaction during sufficient earthquake triggering. Liquefaction hazard maps based on one of the liquefaction potential indices, liquefaction potential index (LPI), have been generated using the ArcGIS Pro tool that shows the spatial distribution of extent of risk due to cyclic liquefaction. These hazard maps can help to identify the vulnerable regions that may cause damage, mostly to bridges within Mississippi County in NEA, which can be used by the Arkansas Department of Transportation (ARDOT).]]></description>
      <pubDate>Tue, 24 Jan 2023 09:30:21 GMT</pubDate>
      <guid>https://trid.trb.org/View/2083718</guid>
    </item>
    <item>
      <title>Rheological, Chemical, and Water Resistance Properties of Asphalt Binders Modified with Selected Warm Mix Additives</title>
      <link>https://trid.trb.org/View/2083693</link>
      <description><![CDATA[Warm mix asphalt (WMA) can reduce the mixing and compaction temperatures by 16 to 55°C compared to hot mix asphalt (HMA). These considerable reductions in production temperatures result in lower fuel demand, a better workplace environment, and lesser emissions of greenhouse gases, etc. This study evaluated three Arkansas Department of Transportation (ARDOT)-approved performance grade (PG) binders: PG 64-22, PG 70-22, and PG 76-22 modified by four WMA additives: Sasobit, Advera, Evotherm, and Rediset. Penetration, rotational viscometer (RV), dynamic shear rheometer (DSR), Fourier transform infrared spectroscopy (FTIR), surface free energy (SFE), Texas boiling, and acid number (pH) tests were performed on these samples. The RV test results showed a slight reduction (up to 5 °C) in mixing and compaction temperatures for Sasobit, Evotherm, and Rediset modified binders. Binder samples modified by Sasobit and Advera showed improved rut resistance among all the samples. Both Evotherm and Rediset modification resulted in higher surface free energy compared to their corresponding unmodified binders. FTIR test results showed that Advera introduced sulfoxide (S=O) and hydroxyl (-OH) groups into base binders. Texas boiling test results showed that asphalt retention was high (>80%) for both Evotherm and Rediset modified samples. Acid number test results showed that both Advera and Rediset increased pH values of binder samples compared to their corresponding unmodified samples. These results will help the agencies and contractors choose the right WMA technology for asphalt paving projects.]]></description>
      <pubDate>Tue, 24 Jan 2023 09:30:20 GMT</pubDate>
      <guid>https://trid.trb.org/View/2083693</guid>
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    <item>
      <title>Planning and Environment Linkages: PEL in Practice: Examples from Discussions with States</title>
      <link>https://trid.trb.org/View/2018853</link>
      <description><![CDATA[This is a compendium of interviews with certain state departments of transportation (DOTs) regarding their Planning and Environment Linkages (PEL) implementation. The DOTs provided valuable insights and lessons learned that informed the development of the Federal Highway Administration’s (FHWA’s) PEL Guidebook. These summaries are not comprehensive descriptions of the state DOT PEL efforts, but rather provide highlights and key takeaways from FHWA’s discussions with these states.]]></description>
      <pubDate>Mon, 26 Sep 2022 09:12:48 GMT</pubDate>
      <guid>https://trid.trb.org/View/2018853</guid>
    </item>
    <item>
      <title>Environmental Friendly Applications of Ground Tire Rubber (GTR) In Producing Concrete</title>
      <link>https://trid.trb.org/View/1948638</link>
      <description><![CDATA[Over 280 million waste tires are generated in the United States on an annual basis. A majority of 3.3 million waste tires generated in Arkansas are either dumped in the landfill or burnt for generating energy; neither of them is a sustainable approach. Handling and disposal of these waste tires is a huge challenge for solid waste management departments of agencies such as the Arkansas Department of Environmental Quality (ADEQ). However, these waste tires can be recycled and utilized as new construction materials to produce durable concrete as the rubber possess favorable engineering properties. The main objective of this study is to assess the feasibility of the use of GTR in preparing durable paving concrete. Specifically, the current study has the following objectives: (a) collect appropriate GTR samples for paving concrete, (b) evaluate fresh and engineering properties of GTR-modified concrete, (c) evaluate the long-term durability properties of GTR-modified concrete, (d) determine the optimum dosage of GTR based on fresh, mechanical, and durability properties tests results, and (e) develop guidelines in implementing GTR-modified concrete.
The aforementioned goals of this project will be accomplished through a comprehensive review of available literature and extensive laboratory testing of selected GTR-modified concrete samples. The following two different sizes of GTR will be studied: (i) Mesh #40 as a replacement of sand; and (ii) Mesh #200 as a replacement of the supplemental cementitious material (SCM). Another variation will be a combination of replacements of both sand and SCM with their optimum dosages. To this end, properties (e.g., workability, air content, and Super Air Member No.) of fresh concrete and strength properties (compressive, tensile, flexural, and elastic modulus) of hardened concrete will be evaluated in accordance with the American Society for Testing and Materials (ASTM) Standards. Durability properties such as alkali-silica reactivity, drying shrinkage, sulfate resistance, and scaling resistance of hardened concrete will also be evaluated per the ASTM methods. Laboratory findings will be implemented in the field through the construction of a small test section (walking trail or sidewalk), and the in-place quality of in-place concrete will be evaluated. Industry partners will provide necessary technical assistance throughout the project. In particular, their assistance in the field demonstration project will be highly beneficial. The test section will also serve as a good learning experience for student researchers as they will work alongside the professional crews during concrete pouring and finishing work.
The technical merit of this project is that this study will assess the feasibility of GTR as a replacement of sand, fly ash, and/or a combination of replacements of sand and fly ash for paving concrete. Such knowledge and techniques do not exist in the public domain today. The current study aims to reduce this knowledge gap. Findings of the proposed study will be disseminated to professionals and communities through technical papers, presentations, and/or radio podcasts at journals, conferences, symposia, etc.
Experimental data gathered from this study are expected to help agencies, contractors, and suppliers in the region to produce durable concrete with GTR. The guidelines developed from the proposed study are expected to be implemented by the state, industry partners, and ready-mix concrete producers in the region. The proposed study will facilitate in meeting multiple objectives of Tran-SET, and they are: (i) promote sustainability and resiliency of the transportation infrastructure renewal and upgrade; (ii) introduce and implement cost-effective solutions to the transportation infrastructure backlog of projects; (iii) develop cost-effective solutions for the construction and maintenance of the transportation infrastructure in metropolitan and rural areas; and (iv) promote workforce development through learning and continuous education.]]></description>
      <pubDate>Fri, 06 May 2022 12:26:44 GMT</pubDate>
      <guid>https://trid.trb.org/View/1948638</guid>
    </item>
    <item>
      <title>Neural Network Based Estimation of Service Life of Different Metal Culverts in Arkansas</title>
      <link>https://trid.trb.org/View/1903384</link>
      <description><![CDATA[The Arkansas Department of Transportation (ARDOT) uses different types of metal culverts and cross-drains. Service lives of these culverts are largely influenced by the corrosion of the metals used in these culverts. Corrosion of metallic parts in any soil-water environment is governed by geochemical and electrochemical properties of the soils and waters. Many transportation agencies including ARDOT primarily focus on investigating the physical and mechanical properties of soils rather than their chemical aspects. The main objective of this study is to analyze the geotechnical and geochemical properties of soils in Arkansas to estimate the service lives of different metal pipes in different conditions. Soil resistivity values were predicted after analyzing the United States Department of Agriculture (USDA) soil survey data using neural network (NN) models. The developed NN models were trained and verified by using laboratory test results of soil samples collected from ARDOT, and survey data were obtained from the USDA. The service lives of metal culverts were then estimated based on the predicted soil properties and water quality parameters extracted from the data acquired from the Arkansas Department of Environmental Quality (ADEQ). Finally, Geographic Information System-based corrosion risk maps of three different types of metal pipes were developed based on their estimated service lives. The developed maps will help ARDOT engineers to assess the corrosion potential of the metal pipes before starting the new construction and repair projects and will allow using proper culvert materials to maximize their life spans.]]></description>
      <pubDate>Tue, 25 Jan 2022 09:50:47 GMT</pubDate>
      <guid>https://trid.trb.org/View/1903384</guid>
    </item>
    <item>
      <title>Feasibility Study of Warm Mix Asphalt in Arkansas</title>
      <link>https://trid.trb.org/View/1892850</link>
      <description><![CDATA[Toward assessing the reduction in production temperatures, this study evaluated the viscosity of three Performance Grade (PG) binders, (PG 64-22, PG 70-22, and PG 76-22) modified by three selected warm mix asphalt (WMA) additives (Sasobit, Advera, and Rediset). These three PG binders are approved by the Arkansas Department of Transportation (ARDOT). The corresponding dosages of Sasobit, Advera, and Rediset were 1.0, 1.5, and 2.0 %; 4.0, 6.0, and 8.0 %; and 0.5, 0.75, and 1.0 % by the weight of binder; respectively. Penetration and viscosity tests were performed on 30 blended binder samples following the respective specifications. The study showed that these WMA technologies were able to reduce the binders’ viscosity to some extent. However, the mixing and compaction temperatures estimated from the viscosity data could not truly reflect the advent of WMA technologies. The viscosity temperature susceptibility (VTS) relationship analysis showed that PG 64-22 showed the highest temperature susceptibility when mixed with 1.0 % Sasobit and the same binder showed the least susceptibility when it contained 6.0 % Advera.]]></description>
      <pubDate>Thu, 16 Dec 2021 16:08:35 GMT</pubDate>
      <guid>https://trid.trb.org/View/1892850</guid>
    </item>
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      <title>Laboratory Screening of Durable Aggregates for Paving Asphalt Mixture</title>
      <link>https://trid.trb.org/View/1892848</link>
      <description><![CDATA[Incompatible and poor quality aggregates used in pavement construction result in different types of distresses and pavement failure which has been recognized as one of the major problems to most state Departments of Transportations (DOTs) and highway agencies. It is believed that the use of good quality aggregates can exhibit a good bonding with asphalt binders and minimize this problem significantly. This study aims to identify suitable aggregates used in Arkansas for durable pavement construction. The Arkansas Department of Transportation (ARDOT) approved four types of aggregates (sandstone, limestone, gravel, and dolomite) from four different sources have been evaluated in this study. The physical, mechanical, and chemical properties of aggregates have been determined by performing a series of laboratory tests. Also, the work of adhesion and boiling resistance tests have been conducted to predict the performance of the asphalt mixtures made of these aggregates and binder. The findings of this study are expected to help pavement researchers and highway professionals to find appropriate aggregates in constructing the durable pavements.]]></description>
      <pubDate>Wed, 01 Dec 2021 09:35:33 GMT</pubDate>
      <guid>https://trid.trb.org/View/1892848</guid>
    </item>
    <item>
      <title>Laboratory and Field Investigation of Subgrade Soil Stabilization in Arkansas</title>
      <link>https://trid.trb.org/View/1892846</link>
      <description><![CDATA[Poor subgrade soils require stabilization to provide a stable platform during the earthwork construction operation. Arkansas Department of Transportation (ARDOT) often faces problematic soils that do not possess sufficient strength to support wheel loads imposed upon them during construction. Thus, it is necessary to stabilize these soils to provide a stable subgrade or a working platform for the construction of pavements. The main objective of this research was to establish useful guidelines for subgrade stabilization and create standard rehabilitation techniques for selected geological regions of the state. The research team conducted a review and evaluation of the current ARDOT soil stabilization procedure along with the existing procedures of the nearby states. Interviews of ARDOT district and construction personnel were conducted to gain insight into their soil stabilization experience in their respective districts. An evaluation of the state geological conditions, in terms of surficial soil types, was conducted. Three different stabilizing agents (Portland cement, Lime, and Class C Fly Ash) were evaluated through laboratory experiments and field demonstration in three ARDOT’s construction projects. The post-construction performance of these test sections was evaluated by measuring their surface roughness (international roughness index). Based on the findings of laboratory test results and performance of the test sites, subgrade stabilization guidelines for future ARDOT projects have been established.]]></description>
      <pubDate>Wed, 01 Dec 2021 09:35:33 GMT</pubDate>
      <guid>https://trid.trb.org/View/1892846</guid>
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