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.
In recent years, “smart city” technologies have emerged that allow cities, counties, and other agencies to manage their infrastructure assets more effectively, make their services more accessible to the public, and allow citizens to interface with new web-and mobile-based alternative service providers. This project developed an innovative user-frie
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Post, A., Ratan, I., Hill, M., Huang, A., Soga, K., & Zhao, B. (2021). Benchmarking “Smart City” Technology Adoption in California: An Innovative Web Platform for Exploring New Data and Tracking Adoption (Report No. UC-ITS-2021-24). University of California Institute of Transportation Studies. https://doi.org/10.7922/G26M355T
Post, Alison, Ishana Ratan, Mary Hill, Amy Huang, Kenichi Soga, and Bingyu Zhao. Benchmarking “Smart City” Technology Adoption in California: An Innovative Web Platform for Exploring New Data and Tracking Adoption. Report no. UC-ITS-2021-24. University of California Institute of Transportation Studies, 2021. https://doi.org/10.7922/G26M355T.
Post, Alison, et al. Benchmarking “Smart City” Technology Adoption in California: An Innovative Web Platform for Exploring New Data and Tracking Adoption. University of California Institute of Transportation Studies, 2021, Report no. UC-ITS-2021-24, ROSA P. https://doi.org/10.7922/G26M355T.
The primary objective of this research project was to assist the Ohio Department of Transportation (ODOT) in identifying a laboratory test that can be used to characterize the fracture behavior and cracking resistance of asphalt mixtures for potential incorporation into ODOT’s mix design approval and quality control/quality assurance (QC/QA) proces
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Abbas, A. R., Nazzal, M., Quasem, T., Mansour, M., & Husain, S. F. (2021). Crack Resistance and Durability of Ohio DOT Asphalt Mixtures Using I-FIT & IDEAL-CT: Phase 2 (Report No. FHWA/OH-2022-01). Ohio. Dept. of Transportation. Office of Statewide Planning and Research. https://rosap.ntl.bts.gov/view/dot/64268
Abbas, Ala R., Munir Nazzal, Tanvir Quasem, Mustafa Mansour, and Syed Faizan Husain. Crack Resistance and Durability of Ohio DOT Asphalt Mixtures Using I-FIT & IDEAL-CT: Phase 2. Report no. FHWA/OH-2022-01. Ohio. Dept. of Transportation. Office of Statewide Planning and Research, 2021. https://rosap.ntl.bts.gov/view/dot/64268.
Abbas, Ala R., et al. Crack Resistance and Durability of Ohio DOT Asphalt Mixtures Using I-FIT & IDEAL-CT: Phase 2. Ohio. Dept. of Transportation. Office of Statewide Planning and Research, 2021, Report no. FHWA/OH-2022-01, ROSA P. https://rosap.ntl.bts.gov/view/dot/64268.
Two approach slabs are constructed at bridge ends to serve as a smooth transition from the highway pavement to the bridge deck. Motorists usually complain about a sudden change in elevation (bump) at the highway/approach slab (H/S) joint that causes a potential hazard for public safety, damage to vehicles, and riders’ discomfort. Many US States con
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Alshibli, K. A., & Imseeh, W. H. (2021). Geosynthetic Reinforced Soils for Bridge Approach Slab Support (Report No. RES2019-22). Tennessee. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/61181
Alshibli, Khalid A and Wadi H Imseeh. Geosynthetic Reinforced Soils for Bridge Approach Slab Support. Report no. RES2019-22. Tennessee. Department of Transportation, 2021. https://rosap.ntl.bts.gov/view/dot/61181.
Alshibli, Khalid A, and Wadi H Imseeh Geosynthetic Reinforced Soils for Bridge Approach Slab Support. Tennessee. Department of Transportation, 2021, Report no. RES2019-22, ROSA P. https://rosap.ntl.bts.gov/view/dot/61181.
When highway project designs depart from design values found in the Kentucky Transportation Cabinet (KYTC) Highway Design Manual and AASHTO’s A Policy on Geometric Design of Highways and Streets, project managers at the agency must obtain either a design exception or design variance. While designers are more comfortable with exceptions and variance
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Van Dyke, C., Waddle, S., & Kreis, D. (2021). Design MythBusters (Report No. KTC-21-29/SPR19-575-1F). University of Kentucky Transportation Center. https://doi.org/10.13023/ktc.rr.2021.29
Van Dyke, Chris, Steven Waddle, and Doug Kreis. Design MythBusters. Report no. KTC-21-29/SPR19-575-1F. University of Kentucky Transportation Center, 2021. https://doi.org/10.13023/ktc.rr.2021.29.
Van Dyke, Chris, et al. Design MythBusters. University of Kentucky Transportation Center, 2021, Report no. KTC-21-29/SPR19-575-1F, ROSA P. https://doi.org/10.13023/ktc.rr.2021.29.
The ultimate objective of this project was to determine the structural performance of the dynamic message sign (DMS) bonded with chemical adhesive in terms of ultimate strength and fatigue strength. To achieve this objective, this project first investigated the effects of various parameters (i.e., conditioning humidity and conditioning temperature)
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Seo, J., & Amatya, I. (2021). Optimized Adhesive Performance in Electronic Transportation Sign Construction (Report No. MPC-563). Mountain-Plains Consortium. https://rosap.ntl.bts.gov/view/dot/60193
Seo, Junwon and Ibin Amatya. Optimized Adhesive Performance in Electronic Transportation Sign Construction. Report no. MPC-563. Mountain-Plains Consortium, 2021. https://rosap.ntl.bts.gov/view/dot/60193.
Seo, Junwon, and Ibin Amatya Optimized Adhesive Performance in Electronic Transportation Sign Construction. Mountain-Plains Consortium, 2021, Report no. MPC-563, ROSA P. https://rosap.ntl.bts.gov/view/dot/60193.
University of Florida researchers conducted experiments to evaluate tapered bearing pads for use in Florida bridge construction. The researchers found limited research on important design properties of tapered bearing pads such as axial stiffness, shear stiffness, horizontal restraining force and displacement generated in tapered pads under pure co
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Freeman, C., Consolazio, G., & Hamilton, H. R. (2021). Evaluation of Tapered Bridge Bearing Pads [Summary] (Report No. BDV31-977-95). Florida. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/68216
Freeman, Christina, Gary Consolazio, and H. R. Hamilton. Evaluation of Tapered Bridge Bearing Pads [Summary]. Report no. BDV31-977-95. Florida. Department of Transportation, 2021. https://rosap.ntl.bts.gov/view/dot/68216.
Freeman, Christina, et al. Evaluation of Tapered Bridge Bearing Pads [Summary]. Florida. Department of Transportation, 2021, Report no. BDV31-977-95, ROSA P. https://rosap.ntl.bts.gov/view/dot/68216.
The Ohio Department of Transportation (ODOT) noise program includes an inventory of more than 250 miles of noise barriers around the state. Each noise barrier constructed must be analyzed using the Federal Highway Administration (FHWA) Traffic Noise Model (TNM) software program to determine if the construction of the barrier is justified. This rese
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Sperry, B. R., Destocki, D., Cubick, K. L., & Rochat, J. (2021). Noise Model-to-Monitor Case Study (Report No. FHWA/OH-2021-36). Ohio. Department of Transportation. Office of Statewide Planning and Research. https://rosap.ntl.bts.gov/view/dot/64235
Sperry, Benjamin R., Devon Destocki, Karel L. Cubick, and Judy Rochat. Noise Model-to-Monitor Case Study. Report no. FHWA/OH-2021-36. Ohio. Department of Transportation. Office of Statewide Planning and Research, 2021. https://rosap.ntl.bts.gov/view/dot/64235.
Sperry, Benjamin R., et al. Noise Model-to-Monitor Case Study. Ohio. Department of Transportation. Office of Statewide Planning and Research, 2021, Report no. FHWA/OH-2021-36, ROSA P. https://rosap.ntl.bts.gov/view/dot/64235.
This report consists of a manual to be used in conjunction with Product 0-6979-P2, a set of 9 Excel workbooks that contain implemented bridge and culvert deterioration models. NBI/PonTex data items modeled were: Item 58, Deck Rating (11 models), Item 59, Superstructure Rating (17 models) Item 60, Substructure Rating (10 models) and Item 62, Culvert
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Weissmann, J., Weissmann, A. J., & Montoya, A. (2021). Texas Culvert and Bridge Deterioration Models: Implementation Manual (Report No. FHWA/TX-21/0-6979-P2). University of Texas at San Antonio. Dept. of Civil and Environmental Engineering. https://rosap.ntl.bts.gov/view/dot/59799
Weissmann, José, Angela Jannini Weissmann, and Arturo Montoya. Texas Culvert and Bridge Deterioration Models: Implementation Manual. Report no. FHWA/TX-21/0-6979-P2. University of Texas at San Antonio. Dept. of Civil and Environmental Engineering, 2021. https://rosap.ntl.bts.gov/view/dot/59799.
Weissmann, José, et al. Texas Culvert and Bridge Deterioration Models: Implementation Manual. University of Texas at San Antonio. Dept. of Civil and Environmental Engineering, 2021, Report no. FHWA/TX-21/0-6979-P2, ROSA P. https://rosap.ntl.bts.gov/view/dot/59799.
This study focused on identifying mechanisms responsible for improved bearing capacity and benefits derived from geocell. The study performed Finite Element Analyses (FEA) and verified the results by performing laboratory tests. In addition, the study developed a design system and performed Life Cycle Cost Analysis to identify the benefits of geoce
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Inti, S., Tirado, C., Sharma, M., & Tandon, V. (2021). Use of Geocell in Pavement Design: Final Report (Report No. FHWA/TX-21/0-6833-1). University of Texas at El Paso. Center for Transportation Infrastructure Systems. https://rosap.ntl.bts.gov/view/dot/60457
Inti, Sundeep, Cesar Tirado, Megha Sharma, and Vivek Tandon. Use of Geocell in Pavement Design: Final Report. Report no. FHWA/TX-21/0-6833-1. University of Texas at El Paso. Center for Transportation Infrastructure Systems, 2021. https://rosap.ntl.bts.gov/view/dot/60457.
Inti, Sundeep, et al. Use of Geocell in Pavement Design: Final Report. University of Texas at El Paso. Center for Transportation Infrastructure Systems, 2021, Report no. FHWA/TX-21/0-6833-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/60457.
Winter weather and its corresponding surface conditions impact the safety and mobility of thousands of motorists annually. Highway agencies spend millions of dollars in resources and personnel in an effort to ensure safe and efficient travel. One such strategy is to use dynamic message signs (DMS) that have been deployed across the state to alert d
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Knickerbocker, S., Sassani, A., & Hans, Z. (2021). Evaluation of Road Weather Messages on DMS Based on Roadside Pavement Sensors (Report No. MN 2021-25). Minnesota. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/60946
Knickerbocker, Skylar, Alireza Sassani, and Zach Hans. Evaluation of Road Weather Messages on DMS Based on Roadside Pavement Sensors. Report no. MN 2021-25. Minnesota. Department of Transportation, 2021. https://rosap.ntl.bts.gov/view/dot/60946.
Knickerbocker, Skylar, et al. Evaluation of Road Weather Messages on DMS Based on Roadside Pavement Sensors. Minnesota. Department of Transportation, 2021, Report no. MN 2021-25, ROSA P. https://rosap.ntl.bts.gov/view/dot/60946.
SC Flood Inundation and Mapping for Action (IMPACT) reduces the stress from uncertainty of flood events by instantly and visually communicating forecasted flooding to state agencies and the public. SC Flood IMPACT analyzes multiple data sources to provide flooding forecasts including peak flow, water surface elevations, time, inundation extents, an
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Lamm, M. C. (2021). SC Flood Inundation Mapping Project (Report No. FHWA-SC-21-08). South Carolina. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/65822
Lamm, Maria Cox. SC Flood Inundation Mapping Project. Report no. FHWA-SC-21-08. South Carolina. Department of Transportation, 2021. https://rosap.ntl.bts.gov/view/dot/65822.
Lamm, Maria Cox SC Flood Inundation Mapping Project. South Carolina. Department of Transportation, 2021, Report no. FHWA-SC-21-08, ROSA P. https://rosap.ntl.bts.gov/view/dot/65822.
Rapidly evolving technology is changing the how and why of travel. The Alaska Department of Transportation and Public Facilities (DOT&PF) is preparing for these changes by developing a Connected and Automated Vehicle (CAV) Strategic Plan for the established Working Group, made up of stakeholders across Alaska. The CAV Strategic Plan centers on the
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Grosso, R., Dougherty, C., & Ooms, A. (2021). Connected & Automated Vehicle Working Group Strategic Plan (Report No. FHWA-AK-RD-000S(946)). Alaska. Department of Transportation and Public Facilities. Research and Technology Transfer. https://rosap.ntl.bts.gov/view/dot/60941
Grosso, Rachel, Claire Dougherty, and Andrew Ooms. Connected & Automated Vehicle Working Group Strategic Plan. Report no. FHWA-AK-RD-000S(946). Alaska. Department of Transportation and Public Facilities. Research and Technology Transfer, 2021. https://rosap.ntl.bts.gov/view/dot/60941.
Grosso, Rachel, et al. Connected & Automated Vehicle Working Group Strategic Plan. Alaska. Department of Transportation and Public Facilities. Research and Technology Transfer, 2021, Report no. FHWA-AK-RD-000S(946), ROSA P. https://rosap.ntl.bts.gov/view/dot/60941.
Quality data is critically important for research and policy-making. The availability of device location data carrying rich, detailed information on travel patterns has increased significantly in recent years with the proliferation of personal global positioning system (GPS)-enabled mobile devices and fleet transponders. However, in its raw form, l
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Macfarlane, J., Patire, A., Deodhar, K., & Laurence, C. (2021). Mobile Device Data Analytics for Next-Generation Traffic Management (Report No. UC-ITS-2020-24). University of California Institute of Transportation Studies. https://doi.org/10.7922/G2SX6BGF
Macfarlane, Jane, Anthony Patire, Kanaad Deodhar, and Colin Laurence. Mobile Device Data Analytics for Next-Generation Traffic Management. Report no. UC-ITS-2020-24. University of California Institute of Transportation Studies, 2021. https://doi.org/10.7922/G2SX6BGF.
Macfarlane, Jane, et al. Mobile Device Data Analytics for Next-Generation Traffic Management. University of California Institute of Transportation Studies, 2021, Report no. UC-ITS-2020-24, ROSA P. https://doi.org/10.7922/G2SX6BGF.
This Research-on-Call (ROC) task was initiated by the Ohio’s Research Initiative for Locals (ORIL) program to obtain information on the current state-of-practice for transportation asset management by local public agencies (LPAs) in Ohio. An online survey was conducted in this task to collect information from Ohio LPAs regarding their asset managem
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Abbas, A. R., Pearson, S., Nazzal, M., Steinberg, E., Guner, S., & Nims, D. (2021). Ohio’s Research Initiative for Locals (ORIL) Research On-Call 2021-ORIL6 (Task 3) – Asset Management Practices by Ohio Local Public Agencies (Report No. FHWA/OH-2021-35). Ohio. Dept. of Transportation. https://rosap.ntl.bts.gov/view/dot/64236
Abbas, Ala R., Sheila Pearson, Munir Nazzal, Eric Steinberg, Serhan Guner, and Douglas Nims. Ohio’s Research Initiative for Locals (ORIL) Research On-Call 2021-ORIL6 (Task 3) – Asset Management Practices by Ohio Local Public Agencies. Report no. FHWA/OH-2021-35. Ohio. Dept. of Transportation, 2021. https://rosap.ntl.bts.gov/view/dot/64236.
Abbas, Ala R., et al. Ohio’s Research Initiative for Locals (ORIL) Research On-Call 2021-ORIL6 (Task 3) – Asset Management Practices by Ohio Local Public Agencies. Ohio. Dept. of Transportation, 2021, Report no. FHWA/OH-2021-35, ROSA P. https://rosap.ntl.bts.gov/view/dot/64236.
The researchers investigated innovative tools and techniques that accelerate the construction of roadway improvement projects. In coordination with local Texas Department of Transportation (TxDOT) districts, the researchers identified four major roadway improvement projects and performed case studies using innovative tools and techniques to acceler
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Goehl, D. C., Choi, K., Scullion, T., Gurganus, C., & Wilson, B. (2021). Accelerated Pavement Construction Evaluation Procedures (Report No. FHWA/TX-21/0-6985-P8). Texas A&M Transportation Institute. https://rosap.ntl.bts.gov/view/dot/60190
Goehl, Darlene C, Kunhee Choi, Thomas Scullion, Charles Gurganus, and Bryan Wilson. Accelerated Pavement Construction Evaluation Procedures. Report no. FHWA/TX-21/0-6985-P8. Texas A&M Transportation Institute, 2021. https://rosap.ntl.bts.gov/view/dot/60190.
Goehl, Darlene C, et al. Accelerated Pavement Construction Evaluation Procedures. Texas A&M Transportation Institute, 2021, Report no. FHWA/TX-21/0-6985-P8, ROSA P. https://rosap.ntl.bts.gov/view/dot/60190.
The research report explored the use of High Occupancy Vehicle (HOV) lanes and meeting points in a ride-sharing system where drivers have their own origin and destination. A two-stage heuristic algorithm is proposed, which consists of an insertion heuristic to solve the pickup and delivery problem (PDP) problem and a second stage algorithm that can
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Dessouky, M. M., & Hu, S. (2021). Dynamic Routing for Ride-Sharing (Report No. NCST-USC-RR-21-22). METRANS Transportation Center (Calif.). https://doi.org/10.7922/G2D798QK
Dessouky, Maged M. and Shichun Hu. Dynamic Routing for Ride-Sharing. Report no. NCST-USC-RR-21-22. METRANS Transportation Center (Calif.), 2021. https://doi.org/10.7922/G2D798QK.
Dessouky, Maged M., and Shichun Hu Dynamic Routing for Ride-Sharing. METRANS Transportation Center (Calif.), 2021, Report no. NCST-USC-RR-21-22, ROSA P. https://doi.org/10.7922/G2D798QK.
The scope of this project involves a holistic investigation of the causes of pedestrian and bicycle crashes in the 12-county North Central Texas area. An extensive review of literature assesses the state-of-art knowledge in crash reporting and analysis, safety countermeasures, safety target setting, as well as crash databases and tools. Five years
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Vavrova, M., Chang, C. M., Kumar, S., Ruiz, D., Gonzalez, S., & Benitez, M. D. (2021). North Texas Bicycle and Pedestrian Crash Analysis: Final Report (Report No. FHWA/TX-21/0-6983-1). University of Texas at El Paso. Center for Transportation Infrastructure Systems. https://rosap.ntl.bts.gov/view/dot/59907
Vavrova, Marketa, Carlos M. Chang, Saurav Kumar, David Ruiz, Sebastian Gonzalez, and Maria D Benitez. North Texas Bicycle and Pedestrian Crash Analysis: Final Report. Report no. FHWA/TX-21/0-6983-1. University of Texas at El Paso. Center for Transportation Infrastructure Systems, 2021. https://rosap.ntl.bts.gov/view/dot/59907.
Vavrova, Marketa, et al. North Texas Bicycle and Pedestrian Crash Analysis: Final Report. University of Texas at El Paso. Center for Transportation Infrastructure Systems, 2021, Report no. FHWA/TX-21/0-6983-1, ROSA P. https://rosap.ntl.bts.gov/view/dot/59907.
The Assessment of Existing and Potential Volume Reduction for Post Construction Stormwater Management research project focuses on developing additional options for post construction BMPs available to ODOT projects. Real-time flow monitoring equipment was installed along ODOT roadways to measure stormwater runoff across the state of Ohio. This resul
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Tangirala, A., & Kerns, J. (2021). Assessment of Existing and Potential Volume Reduction for Post Construction Stormwater Management (Report No. FHWA/OH-2022-10). Ohio. Department of Transportation. Office of Statewide Planning and Research. https://rosap.ntl.bts.gov/view/dot/64265
Tangirala, Anil and Justin Kerns. Assessment of Existing and Potential Volume Reduction for Post Construction Stormwater Management. Report no. FHWA/OH-2022-10. Ohio. Department of Transportation. Office of Statewide Planning and Research, 2021. https://rosap.ntl.bts.gov/view/dot/64265.
Tangirala, Anil, and Justin Kerns Assessment of Existing and Potential Volume Reduction for Post Construction Stormwater Management. Ohio. Department of Transportation. Office of Statewide Planning and Research, 2021, Report no. FHWA/OH-2022-10, ROSA P. https://rosap.ntl.bts.gov/view/dot/64265.
Emerging transportation services, whose development and adoption have been enabled by information and communication technology, are largely transforming people’s travel and activity patterns. This study investigates the emerging transportation trends and how they transform travel-related decision-making in the population at large through the applic
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Circella, G., Iogansen, X., Matson, G., Malik, J., & Etezady, A. (2021). Panel Study of Emerging Transportation Technologies and Trends in California: Phase 2 Findings (Report No. NCST-UCD-RR-21-21). National Center for Sustainable Transportation (NCST) (UTC). https://doi.org/10.7922/G2N014T0
Circella, Giovanni, Xiatian Iogansen, Grant Matson, Jai Malik, and Ali Etezady. Panel Study of Emerging Transportation Technologies and Trends in California: Phase 2 Findings. Report no. NCST-UCD-RR-21-21. National Center for Sustainable Transportation (NCST) (UTC), 2021. https://doi.org/10.7922/G2N014T0.
Circella, Giovanni, et al. Panel Study of Emerging Transportation Technologies and Trends in California: Phase 2 Findings. National Center for Sustainable Transportation (NCST) (UTC), 2021, Report no. NCST-UCD-RR-21-21, ROSA P. https://doi.org/10.7922/G2N014T0.
Tracks are a critical and expensive railroad asset, requiring frequent maintenance. Railroads companies often rely on the accurate localization and identification of the track anomalies that could cause serious damage to infrastructure, environment, and the traveling public. However, the deployed method of inspection and maintenance is expensive, s
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Lu, P., Bridgelall, R., Tolliver, D., Bhardwaj, B., & Dhingra, N. (2021). Track Surface Irregularity Position Localization With Smartphone-Based Solution (Report No. MPC-551). Mountain-Plains Consortium. https://rosap.ntl.bts.gov/view/dot/59905
Lu, Pan, Raj Bridgelall, Denver Tolliver, Bhavana Bhardwaj, and Neeraj Dhingra. Track Surface Irregularity Position Localization With Smartphone-Based Solution. Report no. MPC-551. Mountain-Plains Consortium, 2021. https://rosap.ntl.bts.gov/view/dot/59905.
Lu, Pan, et al. Track Surface Irregularity Position Localization With Smartphone-Based Solution. Mountain-Plains Consortium, 2021, Report no. MPC-551, ROSA P. https://rosap.ntl.bts.gov/view/dot/59905.
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