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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PDF
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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PDF
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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PDF
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.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-12-01
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PDF
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 (2022). Traffic Volume Trends: December 2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/66676
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: December 2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022. https://rosap.ntl.bts.gov/view/dot/66676.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: December 2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/66676.
United States. Department of Transportation. Federal Highway Administration
2022-12-01
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PDF
Although several factors can influence the performance of an asphalt pavement, one of the most important is in-place density. A small increase in density can potentially lead to a significant increase in service life of asphalt. Recognizing the importance of in-place density in building cost-effective asphalt pavements, FHWA initiated a three-phase
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United States. Department of Transportation. Federal Highway Administration (2022). Enhanced In-Place Density: Why Is It So Important? (Report No. FHWA-HIF-20-093). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/71841
United States. Department of Transportation. Federal Highway Administration. Enhanced In-Place Density: Why Is It So Important?. Report no. FHWA-HIF-20-093. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/71841.
United States. Department of Transportation. Federal Highway Administration Enhanced In-Place Density: Why Is It So Important?. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HIF-20-093, ROSA P. https://rosap.ntl.bts.gov/view/dot/71841.
For the SR 14 and Dog Mountain Congestion and Safety Study, the Federal Highway Administration (FHWA) partnered with the United States Forest Service (USFS) and the Washington State Department of Transportation (WSDOT) (together, the "project partners") to study conges on and safety in two parts: (1) recreation access sites along an 80-mile stretc
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Supporting Files
English-Young, S., Haukness, L., Hinatsu, S., & Lebowsky-Young, L. (2022). SR 14 and Dog Mountain Congestion and Safety Study. United States. Federal Highway Administration. Western Federal Lands Highway Division. https://rosap.ntl.bts.gov/view/dot/72313
English-Young, Seth, Lorelei Haukness, Stan Hinatsu, and Laurie Lebowsky-Young. SR 14 and Dog Mountain Congestion and Safety Study. United States. Federal Highway Administration. Western Federal Lands Highway Division, 2022. https://rosap.ntl.bts.gov/view/dot/72313.
English-Young, Seth, et al. SR 14 and Dog Mountain Congestion and Safety Study. United States. Federal Highway Administration. Western Federal Lands Highway Division, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/72313.
United States. Federal Highway Administration. Center for Accelerating Innovation
2022-12-01
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Innovator
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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 (2022). Innovator - November/December 2022 - Volume 16, Issue 93 (Report No. FHWA-22-CAI-031). United States. Federal Highway Administration. Center for Accelerating Innovation. https://rosap.ntl.bts.gov/view/dot/74746
United States. Federal Highway Administration. Center for Accelerating Innovation. Innovator - November/December 2022 - Volume 16, Issue 93. Report no. FHWA-22-CAI-031. United States. Federal Highway Administration. Center for Accelerating Innovation, 2022. https://rosap.ntl.bts.gov/view/dot/74746.
United States. Federal Highway Administration. Center for Accelerating Innovation Innovator - November/December 2022 - Volume 16, Issue 93. United States. Federal Highway Administration. Center for Accelerating Innovation, 2022, Report no. FHWA-22-CAI-031, ROSA P. https://rosap.ntl.bts.gov/view/dot/74746.
United States. Department of Transportation. Federal Highway Administration
2022-12-01
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PDF
Although several factors can influence the performance of an asphalt pavement, one of the most important is in-place density. A small increase in density can potentially lead to a significant increase in service life of asphalt. Highway agencies use specifications to achieve acceptable in-place density on their asphalt pavements. Density acceptance
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United States. Department of Transportation. Federal Highway Administration (2022). Enhanced In-Place Density: Different Specification Types Can Be Used To Achieve Performance (Report No. FHWA-HIF-20-094). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/71840
United States. Department of Transportation. Federal Highway Administration. Enhanced In-Place Density: Different Specification Types Can Be Used To Achieve Performance. Report no. FHWA-HIF-20-094. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/71840.
United States. Department of Transportation. Federal Highway Administration Enhanced In-Place Density: Different Specification Types Can Be Used To Achieve Performance. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HIF-20-094, ROSA P. https://rosap.ntl.bts.gov/view/dot/71840.
United States. Department of Transportation. Federal Highway Administration
2022-12-01
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PDF
The Minnesota Department of Transportation (MnDOT) is continuing to explore further adjustments to the use of and applications for the Paver-Mounted Thermal Profiler (PMTP), a tool that has been fully deployed into practice for MnDOT asphalt paving projects since 2018. The agency had studied the tool for several years and saw the PMTP’s benefits in
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United States. Department of Transportation. Federal Highway Administration (2022). Spotlight on Pavement Uniformity: Minnesota Department of Transportation Status and Next Steps With the Paver-Mounted Thermal Profiler (Report No. FHWA-HIF-22-061). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/71842
United States. Department of Transportation. Federal Highway Administration. Spotlight on Pavement Uniformity: Minnesota Department of Transportation Status and Next Steps With the Paver-Mounted Thermal Profiler. Report no. FHWA-HIF-22-061. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/71842.
United States. Department of Transportation. Federal Highway Administration Spotlight on Pavement Uniformity: Minnesota Department of Transportation Status and Next Steps With the Paver-Mounted Thermal Profiler. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HIF-22-061, ROSA P. https://rosap.ntl.bts.gov/view/dot/71842.
United States. Department of Transportation. Federal Highway Administration
2022-12-01
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Realty Digest
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The Federal Highway Administration's (FHWA) Office of Real Estate Services Newsletter is a resource which is intended to provide right-of-way professionals with the latest best practices, research results, training information, and information on policy and regulatory updates to ensure that Federal, State and local right-of-way program delivery is
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United States. Department of Transportation. Federal Highway Administration (2022). Realty Digest [Winter/Spring 2023 Volume 14, Number 1]. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/77340
United States. Department of Transportation. Federal Highway Administration. Realty Digest [Winter/Spring 2023 Volume 14, Number 1]. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/77340.
United States. Department of Transportation. Federal Highway Administration Realty Digest [Winter/Spring 2023 Volume 14, Number 1]. United States. Department of Transportation. Federal Highway Administration, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/77340.
Making our Roads Safer through a Safe System Approach; The Highway Safety Improvement Program: Paving the Road to a Safer Future; The Safe System Paradigm: Reducing Fatalities and Injuries at the Nation’s Intersections; NHTSA’s Safe System Approach: Educating and Protecting All Road Users; Speed Management is Key to Road Safety; The Safe System App
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Doctor, M. A., Ngo, C., Betkey, D., Scurry, K., Shaw, J., Porter, R. J., Dunn, M., Soika, J., Huang, I., Ritter, R., Williams, D., Wijetunge, G., Xu, G., Zineddin, A., Atkins, R. G., Abel, S., Milton, J., Reynolds, L., Reynolds, R., ... Griffith, M. S. (2022). Public Roads, Vol. 85 No. 4 (Winter 2022) (Report No. FHWA-HRT-22-002). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/67989
Doctor, Mark A., Chimai Ngo, Danielle Betkey, Karen Scurry, Jeffrey Shaw, Richard J. Porter, and Michael Dunn, et al.. Public Roads, Vol. 85 No. 4 (Winter 2022). Report no. FHWA-HRT-22-002. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2022. https://rosap.ntl.bts.gov/view/dot/67989.
Doctor, Mark A., et al. Public Roads, Vol. 85 No. 4 (Winter 2022). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2022, Report no. FHWA-HRT-22-002, ROSA P. https://rosap.ntl.bts.gov/view/dot/67989.
The Wyoming Department of Transportation’s (WYDOT) Connected Vehicle (CV) Pilot Deployment Program is intended to develop a suite of applications that utilize vehicle to infrastructure (V2I) and vehicle to vehicle (V2V) communication technology to reduce the impact of adverse weather on truck travel in the I-80 corridor. These applications support
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Gopalakrishna, D., Garcia, V., English, T., Zumpf, S., & Serulle, N. U. (2022). Connected Vehicle Pilot Deployment Program Phase 4, Concept of Operations (ConOps), WYDOT (Report No. FHWA-JPO-23-112). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/68616
Gopalakrishna, Deepak, Vince Garcia, Tony English, Shane Zumpf, and Nayel Urena Serulle. Connected Vehicle Pilot Deployment Program Phase 4, Concept of Operations (ConOps), WYDOT. Report no. FHWA-JPO-23-112. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2022. https://rosap.ntl.bts.gov/view/dot/68616.
Gopalakrishna, Deepak, et al. Connected Vehicle Pilot Deployment Program Phase 4, Concept of Operations (ConOps), WYDOT. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2022, Report no. FHWA-JPO-23-112, ROSA P. https://rosap.ntl.bts.gov/view/dot/68616.
This document is the System Architecture Document (SAD) for the University of Washington's (UW) Transportation Data Equity Initiative (TDEI) Project for the United States Department of Transportation's (USDOT) ITS4US Program. The SAD describes the system architecture from various architecture perspectives including: Enterprise Architecture View; Ph
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Supporting Files
Tufte, K., Danczyk, A., Caspi, A., Hallenbeck, M., Bolten, N., & Marecek, A. (2022). Phase 2 System Architecture Document: University of Washington ITS4US Deployment Project (Report No. FHWA-JPO-22-984). United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office. https://rosap.ntl.bts.gov/view/dot/68226
Tufte, Kristin, Adam Danczyk, Anat Caspi, Mark Hallenbeck, Nick Bolten, and Alice Marecek. Phase 2 System Architecture Document: University of Washington ITS4US Deployment Project. Report no. FHWA-JPO-22-984. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2022. https://rosap.ntl.bts.gov/view/dot/68226.
Tufte, Kristin, et al. Phase 2 System Architecture Document: University of Washington ITS4US Deployment Project. United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office, 2022, Report no. FHWA-JPO-22-984, ROSA P. https://rosap.ntl.bts.gov/view/dot/68226.
United States. Federal Highway Administration. Office of Bridges and Structures
2022-11-29
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ZIP
HY-8 automates culvert hydraulic computations utilizing a number of essential features that make culvert analysis and design easier. An HY-8 User Manual is included with the software installation (access via 'Help' button on top toolbar) to provide important information on the technical features, capabilities, and limitations of the software.Bugs a
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United States. Federal Highway Administration. Office of Bridges and Structures (2022). HY-8 Culvert Hydraulic Analysis Program Version 7.80.2 [supporting software]. United States. Federal Highway Administration. Office of Bridges and Structures. https://rosap.ntl.bts.gov/view/dot/88714
United States. Federal Highway Administration. Office of Bridges and Structures. HY-8 Culvert Hydraulic Analysis Program Version 7.80.2 [supporting software]. United States. Federal Highway Administration. Office of Bridges and Structures, 2022. https://rosap.ntl.bts.gov/view/dot/88714.
United States. Federal Highway Administration. Office of Bridges and Structures HY-8 Culvert Hydraulic Analysis Program Version 7.80.2 [supporting software]. United States. Federal Highway Administration. Office of Bridges and Structures, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/88714.
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