United States. Department of Transportation. Federal Highway Administration
2022-12-05
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AEGIST enables State and Local transportation agencies by helping them create and integrate spatial transportation data in a consistent and systematic manner for use in transportation systems and business processes. Agencies can utilize AEGIST to ensure that their data is governed, quality, accurate, reliable, complete, standards-based, temporal an
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United States. Department of Transportation. Federal Highway Administration (2022). Applications of Enterprise GIS in Transportation (AEGIST). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/85838
United States. Department of Transportation. Federal Highway Administration. Applications of Enterprise GIS in Transportation (AEGIST). United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/85838.
United States. Department of Transportation. Federal Highway Administration Applications of Enterprise GIS in Transportation (AEGIST). United States. Department of Transportation. Federal Highway Administration, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/85838.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-12-02
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The Weekly Gasoline Product Supplied Report offers insight on weekly fluctuation of the gasoline product supply, which is an important part of any analysis of construction trends, materials and operating costs associated with highway repair and construction, and changes in traffic volume. These data come directly from the Energy Information Adminis
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2022). Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 9, Data Complete Through 12/2/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/65656
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 9, Data Complete Through 12/2/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022. https://rosap.ntl.bts.gov/view/dot/65656.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Special Issue - Weekly Motor Fuel Report: Gasoline Product Supplied for Fiscal Year Week No. 9, Data Complete Through 12/2/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/65656.
The U.S. has more than 600,000 bridges, making the distributed load rating and posting processes across the nation a significant effort that does and can benefit from improvements in efficiency. Bridge load rating, posting, and overweight permitting processes evolve due to the regulatory requirements regarding the frequency of inspections and relev
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Phares, B. M., Liu, Z., & Freeseman, K. (2022). Advancing Bridge Load Rating: State of Practice and Frameworks (Report No. FHWA-HIF-22-059). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure. https://rosap.ntl.bts.gov/view/dot/65690
Phares, Brent M., Zhengyu Liu, and Katelyn Freeseman. Advancing Bridge Load Rating: State of Practice and Frameworks. Report no. FHWA-HIF-22-059. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure, 2022. https://rosap.ntl.bts.gov/view/dot/65690.
Phares, Brent M., et al. Advancing Bridge Load Rating: State of Practice and Frameworks. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure, 2022, Report no. FHWA-HIF-22-059, ROSA P. https://rosap.ntl.bts.gov/view/dot/65690.
This report presents research work related to developing and evaluating magnetic flux-based nondestructive evaluation (NDE) technologies for detecting corrosion damage in external and internal post-tensioned (PT) tendons. For the external tendons, two types of magnetic main flux method (MMFM) systems—a solenoid type and a permanent magnet type— wer
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Lee, S. K., Moriya, T., Itoi, H., Sugawara, M., & Kanemaru, H. (2022). Magnetic Flux-Based Nondestructive Evaluation Technologies for Assessing Corrosion Damage in External and Internal Post-Tensioned Tendons: Development Efforts and Evaluation Results (Report No. FHWA-HRT-23-005). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development. https://rosap.ntl.bts.gov/view/dot/67626
Lee, Seung-Kyoung, Toshiyuki Moriya, Hiroaki Itoi, Masamichi Sugawara, and Hironori Kanemaru. Magnetic Flux-Based Nondestructive Evaluation Technologies for Assessing Corrosion Damage in External and Internal Post-Tensioned Tendons: Development Efforts and Evaluation Results. Report no. FHWA-HRT-23-005. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2022. https://rosap.ntl.bts.gov/view/dot/67626.
Lee, Seung-Kyoung, et al. Magnetic Flux-Based Nondestructive Evaluation Technologies for Assessing Corrosion Damage in External and Internal Post-Tensioned Tendons: Development Efforts and Evaluation Results. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development, 2022, Report no. FHWA-HRT-23-005, ROSA P. https://rosap.ntl.bts.gov/view/dot/67626.
United States. Department of Transportation. Federal Highway Administration
2022-12-01
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The Minnesota Department of Transportation (MnDOT) fully implemented Paver-Mounted Thermal Profilers (PMTPs) into its quality assurance procedures in 2018, after finding the tool practical to use and effective in catching asphalt nonuniformity. The agency began piloting PMTPs in 2010 and phased in the tool over a four-year period between 2014 and 2
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United States. Department of Transportation. Federal Highway Administration (2022). Spotlight on Pavement Uniformity: Minnesota Department of Transportation Using the Paver-Mounted Thermal Profiler (PMTP) For Asphalt Uniformity (Report No. FHWA-HIF-22-060). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/71843
United States. Department of Transportation. Federal Highway Administration. Spotlight on Pavement Uniformity: Minnesota Department of Transportation Using the Paver-Mounted Thermal Profiler (PMTP) For Asphalt Uniformity. Report no. FHWA-HIF-22-060. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/71843.
United States. Department of Transportation. Federal Highway Administration Spotlight on Pavement Uniformity: Minnesota Department of Transportation Using the Paver-Mounted Thermal Profiler (PMTP) For Asphalt Uniformity. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HIF-22-060, ROSA P. https://rosap.ntl.bts.gov/view/dot/71843.
Roadway lane-reduction transitions have long been reported to be problematic to drivers. Whether this problem is the result of a lack of understanding of lane-reduction signing or lane markings, a simple failure to comply with such markings, or other unidentified factors is unknown. This study, completed in 2016, explored driver comprehension of si
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Balk, S. A., & Jackson, S. (2022). Lane Line Markings in Advance of Lane-Reduction Transitions (Report No. FHWA-HRT-23-009). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/65688
Balk, Stacy A. and Steven Jackson. Lane Line Markings in Advance of Lane-Reduction Transitions. Report no. FHWA-HRT-23-009. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2022. https://rosap.ntl.bts.gov/view/dot/65688.
Balk, Stacy A., and Steven Jackson Lane Line Markings in Advance of Lane-Reduction Transitions. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2022, Report no. FHWA-HRT-23-009, ROSA P. https://rosap.ntl.bts.gov/view/dot/65688.
Federal regulations in 23 CFR Part 630 Subpart J require States to conduct a work zone process review (WZPR) every 2 years to evaluate work zone processes and procedures, as well as identify systematic improvements to current and future projects. The Federal Highway Administration now encourages agencies to use a data-driven approach to make WZPRs
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Boyapati, R. K., Pate, A., & Sankar, P. (2022). Data-Driven Work Zone Program Reviews Case Study: Kentucky Transportation Cabinet (Report No. FHWA-HOP-23-008). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/72530
Boyapati, Rama Krishna, Alan Pate, and Param Sankar. Data-Driven Work Zone Program Reviews Case Study: Kentucky Transportation Cabinet. Report no. FHWA-HOP-23-008. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/72530.
Boyapati, Rama Krishna, et al. Data-Driven Work Zone Program Reviews Case Study: Kentucky Transportation Cabinet. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HOP-23-008, ROSA P. https://rosap.ntl.bts.gov/view/dot/72530.
United States. Department of Transportation. Federal Highway Administration
2022-12-01
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Safety Compass Newsletter
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The Federal Highway Administration’s (FHWA) Safety Compass newsletter aims to increase highway safety awareness and to provide resources to the highway safety community to help save lives. The newsletter is published three times a year, and includes articles on safety-focused offerings from FHWA, other DOT modes; our State, Local, and Tribal partne
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United States. Department of Transportation. Federal Highway Administration (2022). Safety Compass Newsletter [Winter 2023: Volume 17, Issue 1]. United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/76995
United States. Department of Transportation. Federal Highway Administration. Safety Compass Newsletter [Winter 2023: Volume 17, Issue 1]. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2022. https://rosap.ntl.bts.gov/view/dot/76995.
United States. Department of Transportation. Federal Highway Administration Safety Compass Newsletter [Winter 2023: Volume 17, Issue 1]. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/76995.
United States. Department of Transportation. Federal Highway Administration
2022-12-01
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Fast Lane - Exploring Human Behavior
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The Human Factors Team biannual highlights cover past, current, and planned future research being conducted at the Turner-Fairbank Highway Research Center.
United States. Department of Transportation. Federal Highway Administration (2022). Fast Lane - Exploring Human Behavior - Volume 17 (Report No. FHWA-HRT-23-018). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/80940
United States. Department of Transportation. Federal Highway Administration. Fast Lane - Exploring Human Behavior - Volume 17. Report no. FHWA-HRT-23-018. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/80940.
United States. Department of Transportation. Federal Highway Administration Fast Lane - Exploring Human Behavior - Volume 17. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HRT-23-018, ROSA P. https://rosap.ntl.bts.gov/view/dot/80940.
Bridges cross over a variety of features ranging from drainage ditches to deep valleys and serve a variety of functions. There are several competing considerations when evaluating bridge railings: the risk of injury and death for vehicle drivers and occupants, the structural integrity of the bridge itself, and the service provided to the principal
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Carrigan, C., & Plaxico, C. (2022). Guide for Bridge Curb/Rail and Approach Treatment for Extremely Low Volume Road (Report No. FHWA-FLH-23-003b). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1521403
Carrigan, C. and C. Plaxico. Guide for Bridge Curb/Rail and Approach Treatment for Extremely Low Volume Road. Report no. FHWA-FLH-23-003b. United States. Department of Transportation. Federal Highway Administration, 2022. https://doi.org/10.21949/1521403.
Carrigan, C., and C. Plaxico Guide for Bridge Curb/Rail and Approach Treatment for Extremely Low Volume Road. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-FLH-23-003b, ROSA P. https://doi.org/10.21949/1521403.
Cooperative driving automation (CDA) aims to improve the safety, traffic throughput, and energy efficiency of the transportation network by allowing vehicles and infrastructure to work together to coordinate movement. The CARMA Ecosystem is utilized to research CDA and leverage emerging capabilities in automation and cooperation to advance transpor
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Head, L., Sprinkle, J., Ghiasi, A., Vadakpat, G., Racha, S., & Bujanovic, P. (2022). Cooperative Automation Research: CARMA Proof-of-Concept TSMO Use Case Testing: Traffic Incident Management Concept of Operations (Report No. FHWA-HRT-22-091). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/65658
Head, Larry, Jonathan Sprinkle, Amir Ghiasi, Govind Vadakpat, Sujith Racha, and Pavle Bujanovic. Cooperative Automation Research: CARMA Proof-of-Concept TSMO Use Case Testing: Traffic Incident Management Concept of Operations. Report no. FHWA-HRT-22-091. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/65658.
Head, Larry, et al. Cooperative Automation Research: CARMA Proof-of-Concept TSMO Use Case Testing: Traffic Incident Management Concept of Operations. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HRT-22-091, ROSA P. https://rosap.ntl.bts.gov/view/dot/65658.
The use of Geographic Information Systems (GIS) to assist with the development of planning documents is well known and practiced. This research effort investigated the use of GIS for safety and traffic assessments, current and best practices, for use in the Federal lands and rural areas. This research report documents the research process, findings
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Hamilton, I., Cohen, T., Amoabeng, M., Spear, M., & Chestnutt, C. (2022). Development of Safety and Traffic Data Collection System and Analysis Framework for Federal Lands: Final Report (Report No. FHWA-FLH-23-006). United States. Federal Highway Administration. Office of Safety Research and Development. https://doi.org/10.21949/1521398
Hamilton, Ian, Tal Cohen, Michael Amoabeng, Michael Spear, and Catherine Chestnutt. Development of Safety and Traffic Data Collection System and Analysis Framework for Federal Lands: Final Report. Report no. FHWA-FLH-23-006. United States. Federal Highway Administration. Office of Safety Research and Development, 2022. https://doi.org/10.21949/1521398.
Hamilton, Ian, et al. Development of Safety and Traffic Data Collection System and Analysis Framework for Federal Lands: Final Report. United States. Federal Highway Administration. Office of Safety Research and Development, 2022, Report no. FHWA-FLH-23-006, ROSA P. https://doi.org/10.21949/1521398.
Roadway lane-reduction transitions have long been reported to be problematic for drivers. Whether this problem is the result of a lack of understanding of lane-reduction signing or lane markings, a simple failure to comply with such markings, or other unidentified factors is unknown. This study, completed in 2019, explored driver behavior when expo
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Marchese, M., & Gonzalez, T. B. (2022). Signing, in Combination with Lane Markings, in Advance of Lane-Reduction Transitions (Report No. FHWA-HRT-23-011). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/65681
Marchese, Matthew and Tracy B. Gonzalez. Signing, in Combination with Lane Markings, in Advance of Lane-Reduction Transitions. Report no. FHWA-HRT-23-011. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2022. https://rosap.ntl.bts.gov/view/dot/65681.
Marchese, Matthew, and Tracy B. Gonzalez Signing, in Combination with Lane Markings, in Advance of Lane-Reduction Transitions. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2022, Report no. FHWA-HRT-23-011, ROSA P. https://rosap.ntl.bts.gov/view/dot/65681.
United States. Department of Transportation. Federal Highway Administration. Office of Operations
2022-12-01
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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 (2022). Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2022. United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/87756
United States. Department of Transportation. Federal Highway Administration. Office of Operations. Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2022. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2022. https://rosap.ntl.bts.gov/view/dot/87756.
United States. Department of Transportation. Federal Highway Administration. Office of Operations Urban Congestion Report (UCR): Year-to-Year Trends in the U.S. for October through December 2022. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/87756.
The gap distances used on adaptive cruise control (ACC) and cooperative adaptive cruise control (CACC) systems have important implications for both driver safety and transportation operations The current study sought to identify comfortable or preferred following gaps under a variety of speeds that could be used to help guide set speeds for ACC and
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Weaver, S., Chao, S. F., Jannat, M., & Philips, B. H. (2022). Preferred Following Distance as a Function of Speed—Function-Specific Automation (Level 1) Applications (Report No. FHWA-HRT-22-107). United States. Federal Highway Administration. Office of Safety and Operations Research and Development. https://rosap.ntl.bts.gov/view/dot/66350
Weaver, Starla, Szu-Fu Chao, Mafruhatul Jannat, and Brian H. Philips. Preferred Following Distance as a Function of Speed—Function-Specific Automation (Level 1) Applications. Report no. FHWA-HRT-22-107. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2022. https://rosap.ntl.bts.gov/view/dot/66350.
Weaver, Starla, et al. Preferred Following Distance as a Function of Speed—Function-Specific Automation (Level 1) Applications. United States. Federal Highway Administration. Office of Safety and Operations Research and Development, 2022, Report no. FHWA-HRT-22-107, ROSA P. https://rosap.ntl.bts.gov/view/dot/66350.
The purpose of this document is to ensure consistent and efficient management of State Planning and Research, Subpart B (SPR-B) work programs by Federal Highway Administration (FHWA) division offices. It is intended to serve as a resource for FHWA division staff, illustrating how reviews of the research management processes can be flexible and open
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United States. Federal Highway Administration (2022). FHWA Division Review of State Department of Transportation: Research Management Process. United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/66798
United States. Federal Highway Administration. FHWA Division Review of State Department of Transportation: Research Management Process. United States. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/66798.
United States. Federal Highway Administration FHWA Division Review of State Department of Transportation: Research Management Process. United States. Federal Highway Administration, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/66798.
This Guide provides bridge engineers and owners with general information and typical details to help standardize orthotropic steel deck (OSD) bridge design/fabrication to make it more competitive. This document does not intend to set a national standard but to help inform the effort through reduced parametric variations. OSD bridges can be either c
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Dahlberg, J. M., Paterson, D., Murphy, T., Medlock, R., Logan, T., Sougata, R., & Artmont, F. A. (2022). Guide for Orthotropic Steel Deck Level 1 Design (Report No. FHWA-HIF-22-056). United States. Federal Highway Administration. Office of Bridge Technology. https://rosap.ntl.bts.gov/view/dot/65697
Dahlberg, Justin M., Duncan Paterson, Thomas Murphy, Ronald Medlock, Terry Logan, Roy Sougata, and Frank A. Artmont. Guide for Orthotropic Steel Deck Level 1 Design. Report no. FHWA-HIF-22-056. United States. Federal Highway Administration. Office of Bridge Technology, 2022. https://rosap.ntl.bts.gov/view/dot/65697.
Dahlberg, Justin M., et al. Guide for Orthotropic Steel Deck Level 1 Design. United States. Federal Highway Administration. Office of Bridge Technology, 2022, Report no. FHWA-HIF-22-056, ROSA P. https://rosap.ntl.bts.gov/view/dot/65697.
Federal regulations in 23 CFR Part 630 Subpart J require States to conduct a work zone process review (WZPR) every 2 years to evaluate work zone processes and procedures, as well as identify systematic improvements to current and future projects. The Federal Highway Administration now encourages agencies to use a data-driven approach to make WZPRs
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Sankar, P., Boyapati, R. K., & Pate, A. (2022). Data-Driven Work Zone Program Reviews Case Study: Illinois Department of Transportation (Report No. FHWA-HOP-23-007). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/67814
Sankar, Param, Rama Krishna Boyapati, and Alan Pate. Data-Driven Work Zone Program Reviews Case Study: Illinois Department of Transportation. Report no. FHWA-HOP-23-007. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/67814.
Sankar, Param, et al. Data-Driven Work Zone Program Reviews Case Study: Illinois Department of Transportation. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HOP-23-007, ROSA P. https://rosap.ntl.bts.gov/view/dot/67814.
United States. Department of Transportation. Federal Highway Administration
2022-12-01
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This edition of the Traffic Monitoring Guide (TMG) is intended to provide the most up-to-date guidance to State highway agencies about the policies, standards, procedures, reporting, and equipment utilized in a traffic monitoring program. The TMG presents recommendations that help improve and advance current programs with a view toward the future o
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United States. Department of Transportation. Federal Highway Administration (2022). Traffic Monitoring Guide [2022] (Report No. FHWA-PL-022-026). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/74643
United States. Department of Transportation. Federal Highway Administration. Traffic Monitoring Guide [2022]. Report no. FHWA-PL-022-026. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/74643.
United States. Department of Transportation. Federal Highway Administration Traffic Monitoring Guide [2022]. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-PL-022-026, ROSA P. https://rosap.ntl.bts.gov/view/dot/74643.
United States. Department of Transportation. Federal Highway Administration
2022-12-01
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The study documents the state of the knowledge of e-Ticketing through questionnaires, interviews, and case studies, and discusses the overall practice of e-Ticketing, benefits and costs, readiness factors, implementation challenges, and future plans of State highway agencies. The study also documents the piloting experiences of nine State highway a
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United States. Department of Transportation. Federal Highway Administration (2022). Documenting Effective e-Ticketing Implementation Webinar (Report No. FHWA-HRT-23-016). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/65684
United States. Department of Transportation. Federal Highway Administration. Documenting Effective e-Ticketing Implementation Webinar. Report no. FHWA-HRT-23-016. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/65684.
United States. Department of Transportation. Federal Highway Administration Documenting Effective e-Ticketing Implementation Webinar. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HRT-23-016, ROSA P. https://rosap.ntl.bts.gov/view/dot/65684.
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