The monthly webinar series serves as a collective experience with the goal of sharing more about the adoption of various NDE technologies by State departments of transportation (DOTs), and current projects, challenges, and best practices.
United States. Federal Highway Administration (2021). Monthly NDE Peer Exchange Webinar Series, March 2021 (Report No. FHWA-HRT-21-049). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/55709
United States. Federal Highway Administration. Monthly NDE Peer Exchange Webinar Series, March 2021. Report no. FHWA-HRT-21-049. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/55709.
United States. Federal Highway Administration Monthly NDE Peer Exchange Webinar Series, March 2021. United States. Federal Highway Administration, 2021, Report no. FHWA-HRT-21-049, ROSA P. https://rosap.ntl.bts.gov/view/dot/55709.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2021-03-01
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Urban Congestion Report (UCR)
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The Urban Congestion Report (UCR) is produced on a quarterly basis and characterizes the most recent traffic congestion and reliability trends at the national and city level. Each quarterly UCR compares data from the most recent three months to the same three months in the previous year.
United States. Department of Transportation. Federal Highway Administration. Office of Operations (2021). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2021. United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/87748
United States. Department of Transportation. Federal Highway Administration. Office of Operations. Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2021. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2021. https://rosap.ntl.bts.gov/view/dot/87748.
United States. Department of Transportation. Federal Highway Administration. Office of Operations Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for January through March 2021. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/87748.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2021-03-01
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Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 5,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the previous year. Estimates are re-adjuste
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2021). Traffic Volume Trends: March 2021. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/56295
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: March 2021. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2021. https://rosap.ntl.bts.gov/view/dot/56295.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: March 2021. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/56295.
Concrete bridge deck overlays have been used in the United States since 1960 to extend the service life of deteriorated concrete bridge decks and improve reliability. Concrete bridge decks with overlays suffer various types of deterioration, so it is necessary to identify and assess the effectiveness of different nondestructive evaluation (NDE) tec
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Lin, S., Azari, H., Meng, D., & Shams, S. (2021). Nondestructive Evaluation of Concrete Bridge Decks with Overlays (Report No. FHWA-HRT-21-023). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development. https://rosap.ntl.bts.gov/view/dot/54794
Lin, Shibin, Hoda Azari, Dewei Meng, and Sadegh Shams. Nondestructive Evaluation of Concrete Bridge Decks with Overlays. Report no. FHWA-HRT-21-023. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2021. https://rosap.ntl.bts.gov/view/dot/54794.
Lin, Shibin, et al. Nondestructive Evaluation of Concrete Bridge Decks with Overlays. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2021, Report no. FHWA-HRT-21-023, ROSA P. https://rosap.ntl.bts.gov/view/dot/54794.
The United States Department of Transportation is interested in developing individual and consolidated technologies that share safety information between road vehicles, trains, infrastructure, and mobile devices using multiple communications media. The Vehicle-to-Everything (V2X) Hub project was initiated to build a software platform to act as a ne
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Balse, A., Greenwood, A. T., Rayamajhi, A., Iyengar, J., & Nallamothu, S. (2021). Vehicle-to-Everything Hub: Final Report (Report No. FHWA-HRT-21-035). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/54793
Balse, Animesh, Aaron T. Greenwood, Anjan Rayamajhi, Jayashree Iyengar, and Sudhakar Nallamothu. Vehicle-to-Everything Hub: Final Report. Report no. FHWA-HRT-21-035. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/54793.
Balse, Animesh, et al. Vehicle-to-Everything Hub: Final Report. United States. Federal Highway Administration, 2021, Report no. FHWA-HRT-21-035, ROSA P. https://rosap.ntl.bts.gov/view/dot/54793.
Environmental Product Declarations (EPDs) are developed by the producers of construction materials as tools that communicate the environmental impacts of material production. In recent years, State Departments of Transportation (DOTs), as well as other State and local government agencies, have expressed interest in using EPDs. This document is an e
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Rangelov, M., Dylla, H. L., Harvey, J., Meijer, J., & Ram, P. (2021). Tech Brief: Environmental Product Declarations: Communicating Environmental Impact for Transportation Products (Report No. FHWA-HIF-21-025). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/56590
Rangelov, Milena, Heather L. Dylla, John Harvey, Joep Meijer, and Prashant Ram. Tech Brief: Environmental Product Declarations: Communicating Environmental Impact for Transportation Products. Report no. FHWA-HIF-21-025. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/56590.
Rangelov, Milena, et al. Tech Brief: Environmental Product Declarations: Communicating Environmental Impact for Transportation Products. United States. Federal Highway Administration, 2021, Report no. FHWA-HIF-21-025, ROSA P. https://rosap.ntl.bts.gov/view/dot/56590.
United States. Department of Transportation. Federal Highway Administration
2021-03-01
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NextGen NHTS Newsletter
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This newsletter covers the latest updates for the National Household Travel Survey (NHTS) program.
United States. Department of Transportation. Federal Highway Administration (2021). NextGen NHTS Newsletter: Spring 2021. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/85013
United States. Department of Transportation. Federal Highway Administration. NextGen NHTS Newsletter: Spring 2021. United States. Department of Transportation. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/85013.
United States. Department of Transportation. Federal Highway Administration NextGen NHTS Newsletter: Spring 2021. United States. Department of Transportation. Federal Highway Administration, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/85013.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2021-03-01
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Public Roads
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Public Roads is the quarterly magazine of the Federal Highway Administration (FHWA). Reading Public Roads is the easiest way to keep up-to-date on developments in federal highway policies, programs, and research and technology. More specifically, the magazine "covers" advances and innovations in highway/traffic research and technology, critical nat
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United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2021). Public Roads Magazine, Spring 2021 (Report No. FHWA-HRT-21-003). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/55708
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. Public Roads Magazine, Spring 2021. Report no. FHWA-HRT-21-003. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021. https://rosap.ntl.bts.gov/view/dot/55708.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology Public Roads Magazine, Spring 2021. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021, Report no. FHWA-HRT-21-003, ROSA P. https://rosap.ntl.bts.gov/view/dot/55708.
This Tech Brief describes the application, design, and construction aspects of Jointed Concrete Pavement (JCP) Roundabouts.
Van Dam, T., Stempihar, J., & Medina, J. (2021). Jointed Concrete Pavement (JCP) Roundabouts [tech brief] (Report No. FHWA-HIF-20-080). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/58312
Van Dam, Tom, Jeff Stempihar, and Jose Medina. Jointed Concrete Pavement (JCP) Roundabouts [tech brief]. Report no. FHWA-HIF-20-080. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/58312.
Van Dam, Tom, et al. Jointed Concrete Pavement (JCP) Roundabouts [tech brief]. United States. Federal Highway Administration, 2021, Report no. FHWA-HIF-20-080, ROSA P. https://rosap.ntl.bts.gov/view/dot/58312.
This Tech Brief describes the application, design, and construction aspects of Continuously Reinforced Concrete (CRC) Roundabouts.
Tayabji, S. D. (2021). Continuously Reinforced Concrete (CRC) Roundabouts [tech brief] (Report No. FHWA-HIF-20-081). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/58311
Tayabji, Shiraz D.. Continuously Reinforced Concrete (CRC) Roundabouts [tech brief]. Report no. FHWA-HIF-20-081. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/58311.
Tayabji, Shiraz D. Continuously Reinforced Concrete (CRC) Roundabouts [tech brief]. United States. Federal Highway Administration, 2021, Report no. FHWA-HIF-20-081, ROSA P. https://rosap.ntl.bts.gov/view/dot/58311.
The Indiana Department of Transportation (INDOT) has adopted Superpave5 as a standard specification on pavement construction projects. Superpave5 is an asphalt mix-design method that targets 5 percent air voids during laboratory design and field placement. Starting in 2013, INDOT demonstrated that layers containing the Superpave5 mixes are construc
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Ali, U. M., & Al-Qadi, I. L. (2021). Superpave5: Potential Asphalt Surface Mix (Report No. FHWA-HIF-19-083). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/56536
Ali, Uthman Mohamed and Imad L Al-Qadi. Superpave5: Potential Asphalt Surface Mix. Report no. FHWA-HIF-19-083. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/56536.
Ali, Uthman Mohamed, and Imad L Al-Qadi Superpave5: Potential Asphalt Surface Mix. United States. Federal Highway Administration, 2021, Report no. FHWA-HIF-19-083, ROSA P. https://rosap.ntl.bts.gov/view/dot/56536.
A successful and proactive preservation scheme (featuring the combined use of SMA, OGFC, and micro-milling) has proven itself as a cost-effective pavement strategy for the Georgia DOT in providing safety and longevity on many of its interstate roadways.
Al-Qadi, I. L., Jayme, A. G., & Okte, E. (2021). Georgia Use of SMA, OGFC, and Micro-milling Results in Improved Sustainable Pavement Performance (Report No. FHWA-HIF-19-084). United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements. https://rosap.ntl.bts.gov/view/dot/63524
Al-Qadi, Imad L., Angeli Gamez Jayme, and Egemen Okte. Georgia Use of SMA, OGFC, and Micro-milling Results in Improved Sustainable Pavement Performance. Report no. FHWA-HIF-19-084. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2021. https://rosap.ntl.bts.gov/view/dot/63524.
Al-Qadi, Imad L., et al. Georgia Use of SMA, OGFC, and Micro-milling Results in Improved Sustainable Pavement Performance. United States. Federal Highway Administration. Office of Preconstruction, Construction, and Pavements, 2021, Report no. FHWA-HIF-19-084, ROSA P. https://rosap.ntl.bts.gov/view/dot/63524.
This document is one in a series of technical summaries that accompany the forthcoming Federal Highway Administration report Collection of Data with Unmanned Aerial Systems (UAS) for Bridge Inspection and Construction Inspection.
Futron Corporation, & VHB/Vanasse Hangen Brustlin, Inc. (2021). Effective Practices for Managing Bridge Inspection Data Captured by UAS [tech brief] (Report No. FHWA-HRT-21-043). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/56406
Futron Corporation and VHB/Vanasse Hangen Brustlin, Inc.. Effective Practices for Managing Bridge Inspection Data Captured by UAS [tech brief]. Report no. FHWA-HRT-21-043. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021. https://rosap.ntl.bts.gov/view/dot/56406.
Futron Corporation, et al. Effective Practices for Managing Bridge Inspection Data Captured by UAS [tech brief]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021, Report no. FHWA-HRT-21-043, ROSA P. https://rosap.ntl.bts.gov/view/dot/56406.
The purpose of this report is to document a simulation-based case study investigating the effectiveness of SAE J3016 Level 1 automation technology for mitigating or solving existing transportation problems related to congestion, fuel consumption, and emissions.(1) This case study examined the impacts of cooperative adaptive cruise control (CACC) ve
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Liu, H., Lu, X. Y., Shladover, S. E., & Huang, Z. (2021). Developing Analysis, Modeling, and Simulation Tools for Connected Automated Vehicle Applications: A Case Study on SR 99 in California (Report No. FHWA-HRT-21-039). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/54795
Liu, Hao, Xiao-Yun Lu, Steven E. Shladover, and Zhitong Huang. Developing Analysis, Modeling, and Simulation Tools for Connected Automated Vehicle Applications: A Case Study on SR 99 in California. Report no. FHWA-HRT-21-039. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/54795.
Liu, Hao, et al. Developing Analysis, Modeling, and Simulation Tools for Connected Automated Vehicle Applications: A Case Study on SR 99 in California. United States. Federal Highway Administration, 2021, Report no. FHWA-HRT-21-039, ROSA P. https://rosap.ntl.bts.gov/view/dot/54795.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
2021-03-01
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This white paper outlines, in simple terms, the fundamental concepts associated with the RSI framework. The document leads the reader through the basic process of RSI application and uses simple examples to illustrate how the RSI framework can be used to support investment decisions. Additional references are provided to help implement these concep
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United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology (2021). Remaining Service Interval: A White Paper [tech note] (Report No. FHWA-HRT-21-006). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/56009
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. Remaining Service Interval: A White Paper [tech note]. Report no. FHWA-HRT-21-006. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021. https://rosap.ntl.bts.gov/view/dot/56009.
United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology Remaining Service Interval: A White Paper [tech note]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2021, Report no. FHWA-HRT-21-006, ROSA P. https://rosap.ntl.bts.gov/view/dot/56009.
This Tech Brief describes the application, design, and construction aspects of Precast Concrete Panel (PCP) Roundabouts for rapid rehabilitation of existing distressed asphalt and jointed concrete roundabouts.
Tayabji, S. D. (2021). Precast Concrete Panel (PCP) Roundabouts [tech brief] (Report No. FHWA-HIF-20-082). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/58310
Tayabji, Shiraz D.. Precast Concrete Panel (PCP) Roundabouts [tech brief]. Report no. FHWA-HIF-20-082. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/58310.
Tayabji, Shiraz D. Precast Concrete Panel (PCP) Roundabouts [tech brief]. United States. Federal Highway Administration, 2021, Report no. FHWA-HIF-20-082, ROSA P. https://rosap.ntl.bts.gov/view/dot/58310.
The National Performance Management Measures; Assessing Pavement Condition for the National Highway Performance Program provided in Subpart C of 23 CFR Part 490 includes an alternative method to report pavement conditions for Interstate and non-Interstate National Highway System locations where the speed limit is less than 40 mph.(1) This alternate
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Thyagarajan, S., Sivaneswaran, N., & Poon-Atkins, C. (2021). Present Serviceability Rating Computation from Reported Distresses (Report No. FHWA-HRT-21-041). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development. https://rosap.ntl.bts.gov/view/dot/55915
Thyagarajan, Senthil, Nadarajah Sivaneswaran, and Christy Poon-Atkins. Present Serviceability Rating Computation from Reported Distresses. Report no. FHWA-HRT-21-041. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2021. https://rosap.ntl.bts.gov/view/dot/55915.
Thyagarajan, Senthil, et al. Present Serviceability Rating Computation from Reported Distresses. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2021, Report no. FHWA-HRT-21-041, ROSA P. https://rosap.ntl.bts.gov/view/dot/55915.
United States. Federal Highway Administration. Center for Accelerating Innovation
2021-03-01
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Innovator, published by the FHWA Center for Accelerating Innovation, advances implementation of innovative technologies and processes in the highway industry. Its audience is transportation professionals in highway agencies, trade and research groups, academia and the private sector, and the driving public.
United States. Federal Highway Administration. Center for Accelerating Innovation (2021). Innovator - March/April 2021 - Volume 14, Issue 83. United States. Federal Highway Administration. Center for Accelerating Innovation. https://rosap.ntl.bts.gov/view/dot/55574
United States. Federal Highway Administration. Center for Accelerating Innovation. Innovator - March/April 2021 - Volume 14, Issue 83. United States. Federal Highway Administration. Center for Accelerating Innovation, 2021. https://rosap.ntl.bts.gov/view/dot/55574.
United States. Federal Highway Administration. Center for Accelerating Innovation Innovator - March/April 2021 - Volume 14, Issue 83. United States. Federal Highway Administration. Center for Accelerating Innovation, 2021, ROSA P. https://rosap.ntl.bts.gov/view/dot/55574.
This report presents the results of a multiphase research effort, which involved a comprehensive literature review, engagement with highway infrastructure owners and operators (IOOs), and interviews with industry experts and key stakeholders to document the potential impact of automated vehicles (AVs) on highway infrastructure. The study attempts t
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Gopalakrishna, D., Carlson, P. J., Sweatman, P., Raghunathan, D., Brown, L., & Serulle, N. U. (2021). Impacts of Automated Vehicles on Highway Infrastructure (Report No. FHWA-HRT-21-015). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/55710
Gopalakrishna, Deepak, Paul J. Carlson, Peter Sweatman, Deepak Raghunathan, Les Brown, and Nayel Urena Serulle. Impacts of Automated Vehicles on Highway Infrastructure. Report no. FHWA-HRT-21-015. United States. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/55710.
Gopalakrishna, Deepak, et al. Impacts of Automated Vehicles on Highway Infrastructure. United States. Federal Highway Administration, 2021, Report no. FHWA-HRT-21-015, ROSA P. https://rosap.ntl.bts.gov/view/dot/55710.
In 2019, the Federal Highway Administration (FHWA) authorized a research and synthesis study to document the progress and direction toward achieving nationwide electronic toll collection (ETC) interoperability. This report discusses the results of that study and identifies current efforts toward nationwide interoperability, challenges to overcome,
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Sethi, S., Ercisli, S., Vu, P., Pope, D., Regan, E., Blackwell, W., & Averkamp, J. (2021). Nationwide Electronic Toll Collection Interoperability (Report No. FHWA-HOP-21-023). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/77146
Sethi, Sonika, Safak Ercisli, Patrick Vu, David Pope, Ed Regan, Wes Blackwell, and Joseph Averkamp. Nationwide Electronic Toll Collection Interoperability. Report no. FHWA-HOP-21-023. United States. Department of Transportation. Federal Highway Administration, 2021. https://rosap.ntl.bts.gov/view/dot/77146.
Sethi, Sonika, et al. Nationwide Electronic Toll Collection Interoperability. United States. Department of Transportation. Federal Highway Administration, 2021, Report no. FHWA-HOP-21-023, ROSA P. https://rosap.ntl.bts.gov/view/dot/77146.
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