The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
The constructability and performance of non-proprietary thixotropic UHPC for thin bonded bridge deck overlay construction was investigated. Task 1 reviewed literature on UHPC for thin bonded overlays and non-proprietary UHPC. Crack monitoring of experimental slabs cast with UHPC thin bonded overlay (MoDOT project TR201704) and pull-off bond strengt
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Khayat, K. H., Teng, L., & Addai-Nimoh, A. (2023). Performance of Cost-Effective Non-Proprietary UHPC in Thin-Bonded Bridge Overlays (Report No. cmr 23-011). Missouri. Department of Transportation. Construction and Materials Division. https://rosap.ntl.bts.gov/view/dot/67594
Khayat, Kamal H., Le Teng, and Alfred Addai-Nimoh. Performance of Cost-Effective Non-Proprietary UHPC in Thin-Bonded Bridge Overlays. Report no. cmr 23-011. Missouri. Department of Transportation. Construction and Materials Division, 2023. https://rosap.ntl.bts.gov/view/dot/67594.
Khayat, Kamal H., et al. Performance of Cost-Effective Non-Proprietary UHPC in Thin-Bonded Bridge Overlays. Missouri. Department of Transportation. Construction and Materials Division, 2023, Report no. cmr 23-011, ROSA P. https://rosap.ntl.bts.gov/view/dot/67594.
Previous research conducted at MSU developed a nonproprietary UHPC mix design (MT-UHPC) that is significantly less expensive than commercially available mixes and is made with materials readily available in Montana. The focus of the research discussed herein was on the field implementation of MT-UHPC. Specifically, MT-UHPC was used in all field-cas
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Berry, M., Hendricks, E., & Matteson, K. (2023). Feasibility of Non-Proprietary Ultra-High Performance Concrete (UHPC) For Use in Highway Bridges in Montana: Implementation (Report No. FHWA/MT-23-002/9925-818). Montana. Department of Transportation. Research Programs. https://doi.org/10.21949/1518325
Berry, Michael, Elias Hendricks, and Kirsten Matteson. Feasibility of Non-Proprietary Ultra-High Performance Concrete (UHPC) For Use in Highway Bridges in Montana: Implementation. Report no. FHWA/MT-23-002/9925-818. Montana. Department of Transportation. Research Programs, 2023. https://doi.org/10.21949/1518325.
Berry, Michael, et al. Feasibility of Non-Proprietary Ultra-High Performance Concrete (UHPC) For Use in Highway Bridges in Montana: Implementation. Montana. Department of Transportation. Research Programs, 2023, Report no. FHWA/MT-23-002/9925-818, ROSA P. https://doi.org/10.21949/1518325.
This project examined the results of an extensive program of (1) cyclic plate loading tests carried out at Purdue University’s S-BRITE site on two testing strips comprised of a coarse aggregate (Indiana #53) subbase layer compacted over either untreated or cement-stabilized subgrade, and (2) static loading tests conducted on #53 aggregate compacted
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Pajo, B., Becker, P., Bourdeau, P. L., & Santagata, M. (2023). Data Interpretation of Automated Plate Load Test (APLT) for Real-Time In Situ Determination of Unbound Layer Resilient Modulus (Report No. FHWA/IN/JTRP-2023/22). Purdue University. Joint Transportation Research Program. https://doi.org/10.5703/1288284317653
Pajo, Bianka, Peter Becker, Philippe L Bourdeau, and Marika Santagata. Data Interpretation of Automated Plate Load Test (APLT) for Real-Time In Situ Determination of Unbound Layer Resilient Modulus. Report no. FHWA/IN/JTRP-2023/22. Purdue University. Joint Transportation Research Program, 2023. https://doi.org/10.5703/1288284317653.
Pajo, Bianka, et al. Data Interpretation of Automated Plate Load Test (APLT) for Real-Time In Situ Determination of Unbound Layer Resilient Modulus. Purdue University. Joint Transportation Research Program, 2023, Report no. FHWA/IN/JTRP-2023/22, ROSA P. https://doi.org/10.5703/1288284317653.
This report outlines the use and application of the Mobility Energy Productivity (MEP) tool in evaluating the efficiency of transportation systems. The MEP metric assesses the quality of mobility in transportation systems, considering accessibility, energy consumption, and productivity. It incorporates time, cost, and energy-related measurements to
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Jin, X., Frolich, D., Mojumder, M. N., & Garikapati, V. (2023). Assessment of the Mobility Energy Productivity (MEP) Metric for Transportation Applications in Florida (Report No. BDV29-977-66). Florida Department of Transportation. https://rosap.ntl.bts.gov/view/dot/80029
Jin, Xia, Daniel Frolich, Md Nizamul Mojumder, and Venu Garikapati. Assessment of the Mobility Energy Productivity (MEP) Metric for Transportation Applications in Florida. Report no. BDV29-977-66. Florida Department of Transportation, 2023. https://rosap.ntl.bts.gov/view/dot/80029.
Jin, Xia, et al. Assessment of the Mobility Energy Productivity (MEP) Metric for Transportation Applications in Florida. Florida Department of Transportation, 2023, Report no. BDV29-977-66, ROSA P. https://rosap.ntl.bts.gov/view/dot/80029.
The expected crash frequency model of Illinois Department of Transportation’s Bureau of Design and Environment needed improvement to incorporate track circuitry as well as pedestrian exposure at railroad-highway grade crossings to make the model more comprehensive. The researchers developed, calibrated, and validated three models to predict collisi
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Sriraj, P., Kawamura, K., Metaxatos, P., Fazio, J., Pujari, C., Farazi, N. P., & Choobchian, P. (2023). Railroad-Highway Crossing Safety Improvement Evaluation and Prioritization Tool (Report No. FHWA-ICT-23-008;ICT-23-009;UILU-2023-2009). Illinois Center for Transportation. https://doi.org/10.36501/0197-9191/23-009
Sriraj, P.S., Kazuya Kawamura, Paul Metaxatos, Joseph Fazio, Chaitanya Pujari, Nahid Parvez Farazi, and Pooria Choobchian. Railroad-Highway Crossing Safety Improvement Evaluation and Prioritization Tool. Report no. FHWA-ICT-23-008;ICT-23-009;UILU-2023-2009. Illinois Center for Transportation, 2023. https://doi.org/10.36501/0197-9191/23-009.
Sriraj, P.S., et al. Railroad-Highway Crossing Safety Improvement Evaluation and Prioritization Tool. Illinois Center for Transportation, 2023, Report no. FHWA-ICT-23-008;ICT-23-009;UILU-2023-2009, ROSA P. https://doi.org/10.36501/0197-9191/23-009.
With the industry foundation classes (IFC) building information modeling (BIM) standard (ISO 16739) being adopted by AASHTO as the national standard for modeling bridge and road infrastructure projects, there comes a great opportunity to upgrade the INDOT model development standard of roads and related assets to 2D+3D BIM. This upgrade complies wit
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Hang, L., Hegazy, H., Xue, X., Zhang, J., & Chen, Y. (2023). BIM Standards for Roads and Related Transportation Assets (Report No. FHWA/IN/JTRP-2023/16). Indiana Department of Transportation. https://doi.org/10.5703/1288284317641
Hang, Li, Hosam Hegazy, Xiaorui Xue, Jiansong Zhang, and Yunfeng Chen. BIM Standards for Roads and Related Transportation Assets. Report no. FHWA/IN/JTRP-2023/16. Indiana Department of Transportation, 2023. https://doi.org/10.5703/1288284317641.
Hang, Li, et al. BIM Standards for Roads and Related Transportation Assets. Indiana Department of Transportation, 2023, Report no. FHWA/IN/JTRP-2023/16, ROSA P. https://doi.org/10.5703/1288284317641.
Reduction in phosphorus is critical because phosphate, a dissolved form of phosphorus, sustains algal and cyanobacteria growth and causes a wide range of water-quality impairments in the ponds and downstream waters including algal blooms, excess floating plants, taste, and odor problems. Many stormwater ponds and wetlands that treat stormwater appe
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Janke, B. D., Natarajan, P., Gulliver, J. S., & Finlay, J. C. (2023). Stormwater Pond Maintenance, and Wetland Management for Phosphorus Retention (Report No. MN 2023-25). Minnesota. Department of Transportation. Office of Research & Innovation. https://rosap.ntl.bts.gov/view/dot/68678
Janke, Benjamin D, Poornima Natarajan, John S. Gulliver, and Jacques C Finlay. Stormwater Pond Maintenance, and Wetland Management for Phosphorus Retention. Report no. MN 2023-25. Minnesota. Department of Transportation. Office of Research & Innovation, 2023. https://rosap.ntl.bts.gov/view/dot/68678.
Janke, Benjamin D, et al. Stormwater Pond Maintenance, and Wetland Management for Phosphorus Retention. Minnesota. Department of Transportation. Office of Research & Innovation, 2023, Report no. MN 2023-25, ROSA P. https://rosap.ntl.bts.gov/view/dot/68678.
This project aims to develop, assess, and optimize control strategies for ramp metering and local signal synchronization in Maryland's Transportation Systems Management and Operations (TSMO) 1 system (I-70 corridor east of Baltimore, MD). The methodology and mesoscopic simulation model can be generally applicable to other networks and TSMO systems.
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Ke, Z., Liu, J., Zou, Q., Yao, W., Liu, Y., Qian, S., & Owolabi, O. (2023). Design and Demonstration of an Arterial-Friendly Local Ramp Metering Control System (Report No. MD-23-SHA/ MSU/ 6-1). Maryland Department of Transportation. State Highway Administration. https://rosap.ntl.bts.gov/view/dot/79841
Ke, Zemian, Jiachao Liu, Qiling Zou, Weiran Yao, Yi Liu, Sean Qian, and Oludare Owolabi. Design and Demonstration of an Arterial-Friendly Local Ramp Metering Control System. Report no. MD-23-SHA/ MSU/ 6-1. Maryland Department of Transportation. State Highway Administration, 2023. https://rosap.ntl.bts.gov/view/dot/79841.
Ke, Zemian, et al. Design and Demonstration of an Arterial-Friendly Local Ramp Metering Control System. Maryland Department of Transportation. State Highway Administration, 2023, Report no. MD-23-SHA/ MSU/ 6-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/79841.
This research studied the relationship between crosswalk setback and intersection safety. The study included field-based and driving simulator experiments. Video data was collected at 10 crosswalks in Oregon to examine the frequency pedestrian-vehicle conflicts (measured using PET), including how these conflicts vary between corner and setback cros
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Hurwitz, D., Chai, E., Jashami, H., Monsere, C. M., Kothuri, S., & Appiah, F. B. (2023). Safest Placement for Crosswalks at Intersections (Report No. FHWA-OR-RD-23-10). Oregon. Dept. of Transportation. Research Section. https://rosap.ntl.bts.gov/view/dot/67861
Hurwitz, David, Eileen Chai, Hisham Jashami, Christopher M. Monsere, Sirisha Kothuri, and Frank Boateng Appiah. Safest Placement for Crosswalks at Intersections. Report no. FHWA-OR-RD-23-10. Oregon. Dept. of Transportation. Research Section, 2023. https://rosap.ntl.bts.gov/view/dot/67861.
Hurwitz, David, et al. Safest Placement for Crosswalks at Intersections. Oregon. Dept. of Transportation. Research Section, 2023, Report no. FHWA-OR-RD-23-10, ROSA P. https://rosap.ntl.bts.gov/view/dot/67861.
MnDOT maintains a significant portion of the state’s storm- water infrastructure. Managing stormwater is important to pre-vent flooding and associated safety risks; impacts to the environ-ment; and damage to property, roads and bridges.
Brenna, E., & Gulliver, J. S. (2023). Assessing Stormwater Infrastructure Capacity for Severe Storms [Summary] (Report No. 2023-21TS). Minnesota. Department of Transportation. Office of Research & Innovation. https://rosap.ntl.bts.gov/view/dot/72543
Brenna, Erik and John S. Gulliver. Assessing Stormwater Infrastructure Capacity for Severe Storms [Summary]. Report no. 2023-21TS. Minnesota. Department of Transportation. Office of Research & Innovation, 2023. https://rosap.ntl.bts.gov/view/dot/72543.
Brenna, Erik, and John S. Gulliver Assessing Stormwater Infrastructure Capacity for Severe Storms [Summary]. Minnesota. Department of Transportation. Office of Research & Innovation, 2023, Report no. 2023-21TS, ROSA P. https://rosap.ntl.bts.gov/view/dot/72543.
In 2019 the Minnesota Legislature amended that state’s statutes to allow cities to set speed limits on city-owned streets. In February 2021 the authors surveyed 33 cities within the Twin Cities metro area and identified the city of St. Louis Park as planning to implement a city-wide change in speed limits, with a default speed limit of 20 mph but w
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Davis, G. A. (2023). Impact of Speed Limit Changes on Urban Streets (Report No. MN 2023-22). Minnesota. Department of Transportation. Office of Research & Innovation. https://rosap.ntl.bts.gov/view/dot/72978
Davis, Gary A.. Impact of Speed Limit Changes on Urban Streets. Report no. MN 2023-22. Minnesota. Department of Transportation. Office of Research & Innovation, 2023. https://rosap.ntl.bts.gov/view/dot/72978.
Davis, Gary A. Impact of Speed Limit Changes on Urban Streets. Minnesota. Department of Transportation. Office of Research & Innovation, 2023, Report no. MN 2023-22, ROSA P. https://rosap.ntl.bts.gov/view/dot/72978.
Snowplow operators are often tasked with clearing snow from roadways under challenging conditions. One such situation is low visibility due to falling or blowing snow that makes it difficult to navigate, stay centered in the lane, and identify upcoming hazards. To support snowplow operators working in these conditions, University of Minnesota resea
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Davis, B., Schwieters, K., Morris, N. L., & Donath, M. (2023). Deployment of a Snowplow Driver-Assist System (Report No. MN 2023-27). Minnesota. Department of Transportation. Office of Research & Innovation. https://rosap.ntl.bts.gov/view/dot/72977
Davis, Brian, Katelyn Schwieters, Nichole L. Morris, and Max Donath. Deployment of a Snowplow Driver-Assist System. Report no. MN 2023-27. Minnesota. Department of Transportation. Office of Research & Innovation, 2023. https://rosap.ntl.bts.gov/view/dot/72977.
Davis, Brian, et al. Deployment of a Snowplow Driver-Assist System. Minnesota. Department of Transportation. Office of Research & Innovation, 2023, Report no. MN 2023-27, ROSA P. https://rosap.ntl.bts.gov/view/dot/72977.
The objectives of this project are to: 1) develop recommendations for extender and recycling agent product approval and dosage selection; and 2) identify appropriate aging procedure(s) to simulate long-term oxidative aging coupled with test methods and parameters to characterize the cracking resistance of asphalt binders. Three NCDOT approved surfa
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Castorena, C., Fried, A., Preciado, J., Gulzar, S., Aparicio Alvis, M. C., & Xue, L. G. (2023). Screening of Asphalt Extenders and Recycling Agents (Report No. FHWA/NC/2020-16). North Carolina Department of Transportation. Research and Development Unit. https://rosap.ntl.bts.gov/view/dot/72375
Castorena, Cassie, Andrew Fried, Jaime Preciado, Saqib Gulzar, Maria Carolina Aparicio Alvis, and Lei Gabriel Xue. Screening of Asphalt Extenders and Recycling Agents. Report no. FHWA/NC/2020-16. North Carolina Department of Transportation. Research and Development Unit, 2023. https://rosap.ntl.bts.gov/view/dot/72375.
Castorena, Cassie, et al. Screening of Asphalt Extenders and Recycling Agents. North Carolina Department of Transportation. Research and Development Unit, 2023, Report no. FHWA/NC/2020-16, ROSA P. https://rosap.ntl.bts.gov/view/dot/72375.
Despite having an extensive network of public transit, traffic congestion and transportation-related greenhouse gas (GHG) emissions are significant concerns in New Jersey. This research examines the GHG impacts of NJ TRANSIT local buses in the greater Newark area service region. It involved a large-scale onboard survey of bus riders on 40 NJ TRANSI
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Deka, D., & Carnegie, J. A. (2023). Analysis of Local Bus Markets, Phase III [Technical Brief] (Report No. FHWA-NJ2023-005). New Jersey. Department of Transportation. Bureau of Research. https://rosap.ntl.bts.gov/view/dot/73725
Deka, Devajyoti and Jon A. Carnegie. Analysis of Local Bus Markets, Phase III [Technical Brief]. Report no. FHWA-NJ2023-005. New Jersey. Department of Transportation. Bureau of Research, 2023. https://rosap.ntl.bts.gov/view/dot/73725.
Deka, Devajyoti, and Jon A. Carnegie Analysis of Local Bus Markets, Phase III [Technical Brief]. New Jersey. Department of Transportation. Bureau of Research, 2023, Report no. FHWA-NJ2023-005, ROSA P. https://rosap.ntl.bts.gov/view/dot/73725.
Public transportation agencies are constantly on the lookout for ways to reduce the number and severity of traffic crashes. One such solution is the Restricted Crossing U-turn, or RCUT, which has proven to be a safer alternative to traditional intersections on four-lane divided highways.
Thompson, S., & Morris, N. (2023). Increasing Support for Innovative Traffic Solutions [Summary] (Report No. 2022-31TS). Minnesota. Department of Transportation. Office of Research & Innovation. https://rosap.ntl.bts.gov/view/dot/72545
Thompson, Scott and Nichole Morris. Increasing Support for Innovative Traffic Solutions [Summary]. Report no. 2022-31TS. Minnesota. Department of Transportation. Office of Research & Innovation, 2023. https://rosap.ntl.bts.gov/view/dot/72545.
Thompson, Scott, and Nichole Morris Increasing Support for Innovative Traffic Solutions [Summary]. Minnesota. Department of Transportation. Office of Research & Innovation, 2023, Report no. 2022-31TS, ROSA P. https://rosap.ntl.bts.gov/view/dot/72545.
This project studies the benefits and barriers of increased adoption of medium-duty and heavy-duty electric trucks, referred to as e-trucks, and presents a methodology for optimizing the location of e-truck charging stations in Minnesota. In general, e-trucks provide zero tailpipe emissions and lower operating and maintenance costs. However, some b
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Khani, A., Emami, B. D., Garcia, F., & Popenhagen, B. (2023). Identifying and Optimizing Electric Vehicle Corridor Charging Infrastructure for Medium and Heavy-Duty Trucks (Report No. MN 2023-29). Minnesota. Department of Transportation. Office of Research & Innovation. https://rosap.ntl.bts.gov/view/dot/68687
Khani, Alireza, Behnam Davazdah Emami, Fernando Garcia, and Brandi Popenhagen. Identifying and Optimizing Electric Vehicle Corridor Charging Infrastructure for Medium and Heavy-Duty Trucks. Report no. MN 2023-29. Minnesota. Department of Transportation. Office of Research & Innovation, 2023. https://rosap.ntl.bts.gov/view/dot/68687.
Khani, Alireza, et al. Identifying and Optimizing Electric Vehicle Corridor Charging Infrastructure for Medium and Heavy-Duty Trucks. Minnesota. Department of Transportation. Office of Research & Innovation, 2023, Report no. MN 2023-29, ROSA P. https://rosap.ntl.bts.gov/view/dot/68687.
This project addresses two critical needs: to update existing Minnesota Department of Transportation (MnDOT) turfgrass recommendation lists and to develop a new process to keep lists continually updated in a fair manner with data-driven recommendations. The authors evaluated the current list of MnDOT-approved turfgrass varieties and found underperf
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Watkins, E. (2023). Evaluating MnDOT’s Turfgrass Seed Variety List and Approval Process [Technical Summary] (Report No. 2023-20TS). Minnesota. Department of Transportation. Office of Research & Innovation. https://rosap.ntl.bts.gov/view/dot/73029
Watkins, Eric. Evaluating MnDOT’s Turfgrass Seed Variety List and Approval Process [Technical Summary]. Report no. 2023-20TS. Minnesota. Department of Transportation. Office of Research & Innovation, 2023. https://rosap.ntl.bts.gov/view/dot/73029.
Watkins, Eric Evaluating MnDOT’s Turfgrass Seed Variety List and Approval Process [Technical Summary]. Minnesota. Department of Transportation. Office of Research & Innovation, 2023, Report no. 2023-20TS, ROSA P. https://rosap.ntl.bts.gov/view/dot/73029.
The consideration of cooperative driving automation (CDA) in the transportation system management and operations (TSM&O ) processes has the potential for improving system performance in terms of safety, mobility, environmental impacts, and user satisfaction and acceptance. The goal of this project is to provide recommendations regarding the incorpo
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Hadi, M., Mata, H., & Hunsanon, T. (2023). Environment for Testing and Assessing Infrastructure Support of Connected Vehicle and Cooperative Highway Automation Applications. Florida. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/80039
Hadi, Mohammed, Hector Mata, and Thodsapon Hunsanon. Environment for Testing and Assessing Infrastructure Support of Connected Vehicle and Cooperative Highway Automation Applications. Florida. Department of Transportation, 2023. https://rosap.ntl.bts.gov/view/dot/80039.
Hadi, Mohammed, et al. Environment for Testing and Assessing Infrastructure Support of Connected Vehicle and Cooperative Highway Automation Applications. Florida. Department of Transportation, 2023, ROSA P. https://rosap.ntl.bts.gov/view/dot/80039.
This project estimates the safety and mobility impact of changing speed limits on California highways. The safety impact is estimated using statistical models to predict the change in the frequency of all crashes and fatal-or-severe crashes that would result by varying the design speed (85th percentile speed). Statewide crash and traffic data (from
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Musabbir, S. R., & Zhang, M. (2023). Assessing the Economic Impact of Speed Limit Changes on Safety and Mobility in California (Report No. UC-ITS-2021-36). University of California Institute of Transportation Studies. https://doi.org/10.7922/G2NK3CCP
Musabbir, Sarder Rafee and Michael Zhang. Assessing the Economic Impact of Speed Limit Changes on Safety and Mobility in California. Report no. UC-ITS-2021-36. University of California Institute of Transportation Studies, 2023. https://doi.org/10.7922/G2NK3CCP.
Musabbir, Sarder Rafee, and Michael Zhang Assessing the Economic Impact of Speed Limit Changes on Safety and Mobility in California. University of California Institute of Transportation Studies, 2023, Report no. UC-ITS-2021-36, ROSA P. https://doi.org/10.7922/G2NK3CCP.
The main objectives of the proposed study are two-fold: 1. To evaluate the effects of various types of inert and active fillers on the moisture resistance and laboratory performance of asphalt mixtures. 2. To propose change to the specifications to optimize the use of mineral fillers in hot-mix asphalt (HMA).
Elseifi, M., Rupnow, T., & Cooper, S. (2023). Effect of Fillers on the Moisture Resistance and Performance of HMA: Research Project Capsule [23–1B] (Report No. 23-1B). Louisiana Transportation Research Center. https://rosap.ntl.bts.gov/view/dot/68740
Elseifi, Mostafa, Tyson Rupnow, and Samuel Cooper. Effect of Fillers on the Moisture Resistance and Performance of HMA: Research Project Capsule [23–1B]. Report no. 23-1B. Louisiana Transportation Research Center, 2023. https://rosap.ntl.bts.gov/view/dot/68740.
Elseifi, Mostafa, et al. Effect of Fillers on the Moisture Resistance and Performance of HMA: Research Project Capsule [23–1B]. Louisiana Transportation Research Center, 2023, Report no. 23-1B, ROSA P. https://rosap.ntl.bts.gov/view/dot/68740.
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