The purpose of this Tech Brief is to describe the use of recycled concrete aggregate (RCA) in concrete paving mixtures and identify considerations for its use in highway infrastructure. The document is intended for highway agency and contractor engineers.
Cavalline, T. L., Snyder, M. B., & Taylor, P. (2022). Use of Recycled Concrete Aggregate (RCA) in Concrete Paving Mixtures [tech brief] (Report No. FHWA-HIF-22-020). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/64322
Cavalline, Tara L, Mark B. Snyder, and Peter Taylor. Use of Recycled Concrete Aggregate (RCA) in Concrete Paving Mixtures [tech brief]. Report no. FHWA-HIF-22-020. United States. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/64322.
Cavalline, Tara L, et al. Use of Recycled Concrete Aggregate (RCA) in Concrete Paving Mixtures [tech brief]. United States. Federal Highway Administration, 2022, Report no. FHWA-HIF-22-020, ROSA P. https://rosap.ntl.bts.gov/view/dot/64322.
This case study presents a safety analysis performed by the Texas Department of Transportation (TxDOT) for an Interstate Access Justification Report. The Interstate 37 (I-37) corridor is an important freight route, critical hurricane evacuation linkage, and the only crossing of the Nueces River within 25 miles. This corridor is part of the National
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Kersavage, K., & Hamilton, I. (2022). Interstate 37 in Texas Interstate Access Justification (Report No. FHWA-SA-21-076). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/63015
Kersavage, Kristin and Ian Hamilton. Interstate 37 in Texas Interstate Access Justification. Report no. FHWA-SA-21-076. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2022. https://rosap.ntl.bts.gov/view/dot/63015.
Kersavage, Kristin, and Ian Hamilton Interstate 37 in Texas Interstate Access Justification. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2022, Report no. FHWA-SA-21-076, ROSA P. https://rosap.ntl.bts.gov/view/dot/63015.
Partial-depth precast concrete deck panels (PDDPs) are relatively thin precast prestressed concrete panels that span between girders which combine to act compositely with a cast-in-place (CIP) concrete topping to provide the full structural thickness of a bridge deck. PDDPs may have some advantages including faster and safer construction, ease of d
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McDonagh, M., Foden, A., & Beyer, A. (2022). State-of-the-Practice Report— Partial-Depth Precast Concrete Deck Panels (Report No. FHWA-HIF-22-031). United States. Federal Highway Administration. Office of Bridges and Structures. https://rosap.ntl.bts.gov/view/dot/72981
McDonagh, Michael, Andrew Foden, and Alexandra Beyer. State-of-the-Practice Report— Partial-Depth Precast Concrete Deck Panels. Report no. FHWA-HIF-22-031. United States. Federal Highway Administration. Office of Bridges and Structures, 2022. https://rosap.ntl.bts.gov/view/dot/72981.
McDonagh, Michael, et al. State-of-the-Practice Report— Partial-Depth Precast Concrete Deck Panels. United States. Federal Highway Administration. Office of Bridges and Structures, 2022, Report no. FHWA-HIF-22-031, ROSA P. https://rosap.ntl.bts.gov/view/dot/72981.
The Federal Highway Administration (FHWA) and Traffic Analysis and Simulation Pooled Fund Study sponsored a research project on multiresolution modeling (MRM). The project intends to develop consistent definitions and a unified modeling framework for transportation professionals to help them better understand the opportunities and challenges associ
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Hadi, M., Zhou, X., & Hale, D. (2022). Multiresolution Modeling for Traffic Analysis: Case Studies Report (Report No. FHWA-HRT-22-054). United States. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/60762
Hadi, Mohammed, Xuesong Zhou, and David Hale. Multiresolution Modeling for Traffic Analysis: Case Studies Report. Report no. FHWA-HRT-22-054. United States. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/60762.
Hadi, Mohammed, et al. Multiresolution Modeling for Traffic Analysis: Case Studies Report. United States. Federal Highway Administration, 2022, Report no. FHWA-HRT-22-054, ROSA P. https://rosap.ntl.bts.gov/view/dot/60762.
United States. Department of Transportation. Federal Highway Administration
2022-02-01
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The BIL establishes a National Electric Vehicle Infrastructure Formula Program ("NEVI Formula") to provide funding to States to strategically deploy electric vehicle (EV) charging infrastructure and to establish an interconnected network to facilitate data collection, access, and reliability.
United States. Department of Transportation. Federal Highway Administration (2022). National Electric Vehicle Infrastructure Formula Program. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/78849
United States. Department of Transportation. Federal Highway Administration. National Electric Vehicle Infrastructure Formula Program. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/78849.
United States. Department of Transportation. Federal Highway Administration National Electric Vehicle Infrastructure Formula Program. United States. Department of Transportation. Federal Highway Administration, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/78849.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-02-01
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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 (2022). Traffic Volume Trends: February 2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/62848
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Traffic Volume Trends: February 2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022. https://rosap.ntl.bts.gov/view/dot/62848.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Traffic Volume Trends: February 2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/62848.
Scenario Manager and Vehicle Trajectory Processor (NeXTA) are software products developed under the second Strategic Highway Research Program (SHRP2) Project L04for facilitating the incorporation of reliability performance measures into operations and planning tools. Pilot test sites in both Portland, Oregon and Phoenix, Arizona were used in conjun
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Kittelson, W., Quayle, S., Nevers, B., Chiu, Y. C., Zhou, X., & Nava, E. (2022). Incorporating Reliability Performance Measures in Operations and Planning Modeling Tools (Report No. FHWA-HOP-20-042). United States. Department of Transportation. Federal Highway Administration. Office of Operations. https://rosap.ntl.bts.gov/view/dot/66031
Kittelson, Wayne, Shaun Quayle, Brandon Nevers, Yi-Chang Chiu, Xuesong Zhou, and Eric Nava. Incorporating Reliability Performance Measures in Operations and Planning Modeling Tools. Report no. FHWA-HOP-20-042. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2022. https://rosap.ntl.bts.gov/view/dot/66031.
Kittelson, Wayne, et al. Incorporating Reliability Performance Measures in Operations and Planning Modeling Tools. United States. Department of Transportation. Federal Highway Administration. Office of Operations, 2022, Report no. FHWA-HOP-20-042, ROSA P. https://rosap.ntl.bts.gov/view/dot/66031.
This manual describes operational procedures for collecting longitudinal profile, macrotexture, and transverse profile data for the Long-Term Pavement Performance program using a High-Speed Survey Vehicle. This manual also contains procedures for measuring the longitudinal and transverse profiles of the pavement using a Dipstick® and the longitudin
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Perera, R. W., & Elkins, G. E. (2022). LTPP Manual for Collecting and Processing Longitudinal Profile, Macrotexture, and Transverse Profile Data (Report No. FHWA-HRT-21-096). United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure. https://rosap.ntl.bts.gov/view/dot/62452
Perera, Rohan W. and Gary E. Elkins. LTPP Manual for Collecting and Processing Longitudinal Profile, Macrotexture, and Transverse Profile Data. Report no. FHWA-HRT-21-096. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure, 2022. https://rosap.ntl.bts.gov/view/dot/62452.
Perera, Rohan W., and Gary E. Elkins LTPP Manual for Collecting and Processing Longitudinal Profile, Macrotexture, and Transverse Profile Data. United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure, 2022, Report no. FHWA-HRT-21-096, ROSA P. https://rosap.ntl.bts.gov/view/dot/62452.
This case study summarizes a safety analysis conducted by the Federal Highway Administration (FHWA) Geometric Design Lab (GDL), in collaboration with the Alabama Department of Transportation (ALDOT) and the FHWA Alabama Division. GDL used the Interactive Highway Safety Design Model (IHSDM) software to assess the safety performance of W South Boulev
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Dunn, M. (2022). West South Boulevard Redesign Safety Assessment (Report No. FHWA-SA-21-075). United States. Department of Transportation. Federal Highway Administration. Office of Safety. https://rosap.ntl.bts.gov/view/dot/63010
Dunn, Michael. West South Boulevard Redesign Safety Assessment. Report no. FHWA-SA-21-075. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2022. https://rosap.ntl.bts.gov/view/dot/63010.
Dunn, Michael West South Boulevard Redesign Safety Assessment. United States. Department of Transportation. Federal Highway Administration. Office of Safety, 2022, Report no. FHWA-SA-21-075, ROSA P. https://rosap.ntl.bts.gov/view/dot/63010.
United States. Federal Highway Administration. Center for Accelerating Innovation
2022-02-01
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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 (2022). Innovator - January/February 2022 - Volume 15, Issue 88 (Report No. FHWA-21-CAI-025). United States. Federal Highway Administration. Center for Accelerating Innovation. https://rosap.ntl.bts.gov/view/dot/62450
United States. Federal Highway Administration. Center for Accelerating Innovation. Innovator - January/February 2022 - Volume 15, Issue 88. Report no. FHWA-21-CAI-025. United States. Federal Highway Administration. Center for Accelerating Innovation, 2022. https://rosap.ntl.bts.gov/view/dot/62450.
United States. Federal Highway Administration. Center for Accelerating Innovation Innovator - January/February 2022 - Volume 15, Issue 88. United States. Federal Highway Administration. Center for Accelerating Innovation, 2022, Report no. FHWA-21-CAI-025, ROSA P. https://rosap.ntl.bts.gov/view/dot/62450.
Ultra-high performance concrete (UHPC) is a class of cement-based composite materials with enhanced properties as compared to conventional concrete. There is growing interest, both in the United States and worldwide, in using UHPC to address needs in the bridge sector (Graybeal et al. 2020). Appropriate use of UHPC must be founded on common definit
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Spragg, R. P., Graybeal, B. A., Saladi, N., Montanari, L., & De la Varga, I. (2022). Electrical Resistivity Testing to Rapidly Assess The Durability of UHPC-Class Materials [techbrief] (Report No. FHWA-HRT-21-095). United States. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/61040
Spragg, Robert P., Benjamin A. Graybeal, Naveen Saladi, Luca Montanari, and Igor De la Varga. Electrical Resistivity Testing to Rapidly Assess The Durability of UHPC-Class Materials [techbrief]. Report no. FHWA-HRT-21-095. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2022. https://rosap.ntl.bts.gov/view/dot/61040.
Spragg, Robert P., et al. Electrical Resistivity Testing to Rapidly Assess The Durability of UHPC-Class Materials [techbrief]. United States. Federal Highway Administration. Office of Research, Development, and Technology, 2022, Report no. FHWA-HRT-21-095, ROSA P. https://rosap.ntl.bts.gov/view/dot/61040.
United States. Federal Highway Administration. Office of Natural Environment
2022-02-01
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This brief newsletter each month keeps transportation stakeholders up-to-date on various issues related to transportation and climate change.
United States. Federal Highway Administration. Office of Natural Environment (2022). Air Quality + Sustainable Transportation Highlights: January/February 2022 (Report No. FHWA-HEP-22-016). United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment. https://rosap.ntl.bts.gov/view/dot/62983
United States. Federal Highway Administration. Office of Natural Environment. Air Quality + Sustainable Transportation Highlights: January/February 2022. Report no. FHWA-HEP-22-016. United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment, 2022. https://rosap.ntl.bts.gov/view/dot/62983.
United States. Federal Highway Administration. Office of Natural Environment Air Quality + Sustainable Transportation Highlights: January/February 2022. United States. Department of Transportation. Federal Highway Administration. Office of Natural Environment, 2022, Report no. FHWA-HEP-22-016, ROSA P. https://rosap.ntl.bts.gov/view/dot/62983.
Traffic incident detection is a crucial task in traffic management centers (TMCs) that typically manage large highway networks with limited staff. An effective automatic incident-detection approach could benefit TMCs by helping to report abnormal events in a timely and accurate manner and optimize operating resources. During the past decades, resea
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Yang, H., Cetin, M., Wang, Z., Huang, Z., Nallamothu, S., & Huang, P. (2022). Effectiveness of TMC AI Applications in Case Studies (Report No. FHWA-HRT-21-081). United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/67357
Yang, H., Mecit Cetin, Z Wang, Z. Huang, Sudhakar Nallamothu, and P. Huang. Effectiveness of TMC AI Applications in Case Studies. Report no. FHWA-HRT-21-081. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/67357.
Yang, H., et al. Effectiveness of TMC AI Applications in Case Studies. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-HRT-21-081, ROSA P. https://rosap.ntl.bts.gov/view/dot/67357.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-01-30
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The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2022). Special Issue - Weekly Traffic Volume Report: Interstate Travel for Week No. 4, 1/24/2022 – 1/30/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/60680
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Special Issue - Weekly Traffic Volume Report: Interstate Travel for Week No. 4, 1/24/2022 – 1/30/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022. https://rosap.ntl.bts.gov/view/dot/60680.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Special Issue - Weekly Traffic Volume Report: Interstate Travel for Week No. 4, 1/24/2022 – 1/30/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/60680.
United States. Department of Transportation. Federal Highway Administration
2022-01-28
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FHWA provides Applicability Tables, which contain lists of State DOTs and MPOs who are required to establish targets and report progress for the performance measures related to the CMAQ Program.
United States. Department of Transportation. Federal Highway Administration (2022). CMAQ Applicability Tables: Second Performance Period. United States. Department of Transportation. Federal Highway Administration. https://rosap.ntl.bts.gov/view/dot/72435
United States. Department of Transportation. Federal Highway Administration. CMAQ Applicability Tables: Second Performance Period. United States. Department of Transportation. Federal Highway Administration, 2022. https://rosap.ntl.bts.gov/view/dot/72435.
United States. Department of Transportation. Federal Highway Administration CMAQ Applicability Tables: Second Performance Period. United States. Department of Transportation. Federal Highway Administration, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/72435.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-01-28
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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. 18, Data Complete Through 1/28/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/60675
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. 18, Data Complete Through 1/28/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022. https://rosap.ntl.bts.gov/view/dot/60675.
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. 18, Data Complete Through 1/28/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/60675.
Based on the 2016 National Bridge Inventory (NBI) database available at the FHWA, there are a total of 614,387 bridges in the United States. It has been observed from previous research that collision, both caused by vessel and vehicles, is the second leading cause of bridge failures. Recently, overheight impact on bridge superstructure has been rec
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Agrawal, A. K., El-Tawil, S., & Cao, R. (2022). Implementation of Crash Simulation Technology To Develop Countermeasures Strategies for Overheight Impact Protection System on Concrete Girders (Report No. FHWA-RC-22-0003). United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology. https://rosap.ntl.bts.gov/view/dot/83881
Agrawal, Anil K., Sherif El-Tawil, and Ran Cao. Implementation of Crash Simulation Technology To Develop Countermeasures Strategies for Overheight Impact Protection System on Concrete Girders. Report no. FHWA-RC-22-0003. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2022. https://rosap.ntl.bts.gov/view/dot/83881.
Agrawal, Anil K., et al. Implementation of Crash Simulation Technology To Develop Countermeasures Strategies for Overheight Impact Protection System on Concrete Girders. United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology, 2022, Report no. FHWA-RC-22-0003, ROSA P. https://rosap.ntl.bts.gov/view/dot/83881.
The Buffalo NY ITS4US Deployment Project seeks to improve mobility to, from and within the Buffalo Niagara Medical Campus by deploying new and advanced technologies with a focus on addressing existing mobility and accessibility challenges. Examples of the technologies to be deployed are electric and self-driving shuttles, a trip planning app that i
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Bradley, M., Zmud, J., Rosenson, A., Gopalakrishna, D., Serulle, N. U., Okunieff, P., Sadek, A., Maisel, J. L., & Paquet, V. (2022). Phase 1 Performance Measurement and Evaluation Support Plan (PMESP) – Buffalo NY ITS4US Deployment Project (Report No. FHWA-JPO-21-878). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1527562
Bradley, Mark, Johanna Zmud, Abigail Rosenson, Deepak Gopalakrishna, Nayel Urena Serulle, Polly Okunieff, Adel Sadek, Jordana L. Maisel, and Victor Paquet. Phase 1 Performance Measurement and Evaluation Support Plan (PMESP) – Buffalo NY ITS4US Deployment Project. Report no. FHWA-JPO-21-878. United States. Department of Transportation. Federal Highway Administration, 2022. https://doi.org/10.21949/1527562.
Bradley, Mark, et al. Phase 1 Performance Measurement and Evaluation Support Plan (PMESP) – Buffalo NY ITS4US Deployment Project. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-JPO-21-878, ROSA P. https://doi.org/10.21949/1527562.
The Heart of Iowa Regional Transit Agency (HIRTA) is one of the 5 awardees for Phase 1 of the Complete Trip – ITS4US contract for its proposed concept “Health Connector for the Most Vulnerable: An Inclusive Mobility Experience from Beginning to End” (Health Connector) by the United States Department of Transportation (USDOT). The HIRTA Team previou
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Mishra, S., Ramsey, B., & Coogan, T. (2022). Phase 1 System Requirements Specification (SyRS) — Heart of Iowa Regional Transit Agency ITS4US Deployment Project (Report No. FHWA-JPO-21-882). United States. Department of Transportation. Federal Highway Administration. https://doi.org/10.21949/1527561
Mishra, Santosh, Brooke Ramsey, and Tom Coogan. Phase 1 System Requirements Specification (SyRS) — Heart of Iowa Regional Transit Agency ITS4US Deployment Project. Report no. FHWA-JPO-21-882. United States. Department of Transportation. Federal Highway Administration, 2022. https://doi.org/10.21949/1527561.
Mishra, Santosh, et al. Phase 1 System Requirements Specification (SyRS) — Heart of Iowa Regional Transit Agency ITS4US Deployment Project. United States. Department of Transportation. Federal Highway Administration, 2022, Report no. FHWA-JPO-21-882, ROSA P. https://doi.org/10.21949/1527561.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information
2022-01-23
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The Weekly Traffic Volume Report estimates the vehicle miles traveled (VMT) for interstate highways and how the total travel measured by VMT compares with travel that occurred in the same week of the previous year. The VMT is further split into passenger vehicle and truck components. The information gives new insights into the effect on traffic by
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United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information (2022). Special Issue - Weekly Traffic Volume Report: Interstate Travel for Week No. 3, 1/17/2022 – 1/23/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. https://rosap.ntl.bts.gov/view/dot/60678
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information. Special Issue - Weekly Traffic Volume Report: Interstate Travel for Week No. 3, 1/17/2022 – 1/23/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022. https://rosap.ntl.bts.gov/view/dot/60678.
United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information Special Issue - Weekly Traffic Volume Report: Interstate Travel for Week No. 3, 1/17/2022 – 1/23/2022. United States. Department of Transportation. Federal Highway Administration. Office of Highway Policy Information, 2022, ROSA P. https://rosap.ntl.bts.gov/view/dot/60678.
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