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Publications

FHWA Road Weather Management Program Publications

A listing by category of Road Weather Management Program publications containing documents developed by FHWA and Partners, some of which have been published while others are conference papers and other documents.

• General Road Weather Management
• Connected Vehicles/Dynamic Mobility Applications
• Data Collection and Integration
• Maintenance Management/Maintenance Decision Support System (MDSS)
• Operations, Extreme Weather and Climate Change
• Traffic Analysis and Management
• Performance Evaluation and Benefit-Cost Analysis
• Road Weather Information and Data Management Systems
• EDC-4/Weather-Savvy Roads
• EDC-5/Weather Responsive Management Strategies
• Adaptive Route Optimization (ARO) for Operations
• Automated Vehicles and Adverse Weather
• Road Weather and Climate Resilience

FHWA Road Weather Management Program Publications

General Road Weather Management

• Citizen Reporting of Current Road Conditions (HTML, PDF 399KB)
• Collaboration Across the Road Weather Enterprise: The Pathfinder Project (2016) (HTML, PDF 2MB) (FHWA-HOP-16-086)
• Road Weather Management Best Practices: Version 3.0 (Flyer) (2013) (PDF 555KB) (FHWA-HOP-13-036)
• Road Weather Management Best Practices: Version 3.0 (2012) (PDF 2.3MB) (FHWA-JPO-12-046)
• Road Weather Bulletin (2011) (PDF 1.0 MB)
• Seasons of Achievement: Accomplishments of the Road Weather Management Program (HTML, PDF 3.5MB) (2010)
• Weather Information for Road Managers (2005) (DOC 204KB)
• Road Weather Management Product Guide (Flyer) (2005) (PDF 700KB)
• Road Risk DVD Video (Publication Number: FHWA-HOP-05-024) - To request a copy of the video please email WeatherFeedback@dot.gov.
• Weather Information for Roadway Transportation: Preliminary Data Gap Analysis (2004) (DOC 197KB)
• Road Weather Management Overview (Flyer) (2004)
• Lessons Learned from Collaborative Research on Road Weather Observations and Predictions by Universities, State Departments of Transportation, and National Weather Service Forecast Offices: Summary (2004) (PDF 181KB)
• Another Rain Delay (2004) November - December 2004 FHWA Public Roads
• Advances in Road Weather Research (2004) (PDF 188KB)
• Weather-Related Crashes on U.S. Highways in 2001 (2003) (DOC 464KB)
• Meeting the Challenges of Adverse Weather: A Blueprint for Road Weather Research (2003) (PDF 311KB)
• Best Practices for Road Weather Management Version 2.0 (2003)
• An Overview of Surface Transportation Weather Research Conducted Through the Cooperative Program for Operational Meteorology, Education and Training (COMET) (2003) (PDF 169KB)
• An Overview of Federal Highway Administration Road Weather Management Program Activities (2003) (DOC 104KB)
• Weather in the Info-Structure (2003) (PDF 647KB)
• Weather: A Research Agenda for Surface Transportation Operations (2002)
• Surface Transportation Weather Applications (2002) (PDF 853KB)
• Surface Transportation Safety and Operations: The Impacts of Weather Within The Context of Climate Change (2002) (PDF 469KB)
• Current Practices in Transportation Management During Inclement Weather (2002) (PDF 186KB)
• Surface Transportation Weather Decision Support Requirements (1999, 2000)

Connected Vehicles/Dynamic Mobility Applications

• Results from the Integrated Mobile Observations Study (PDF 11MB) (FHWA-JPO-13-066)
• Concept of Operations for Road Weather Connected Vehicle Applications (2013) (PDF 3.3MB) (FHWA-JPO-13-047)
• The Vision for Use of Connected Vehicle Data in Practical Road Weather Applications ( 2012) (PDF 663KB) (FHWA-JPO-12-040)
• The Vehicle Data Translator V3.0 System Description (2011) (PDF 39MB) (FHWA-JPO-11-127)
• Road Weather and the Connected Vehicle (2011) (PDF 573KB) (FHWA-JPO-11-138)
• Road Weather and the Connected Vehicle (2011) (FHWA-JPO-11-138)
• Connected Vehicles Road Weather Research & Development - The Vehicle Data Translator Technical Paper (2009) (HTML, PDF 695KB)
• Weather Applications and Products Enabled Through Vehicle Infrastructure Integration (VII): Feasibility and Concept Development Study (2007)
• Enhancing Road Weather Information Through Vehicle Infrastructure Integration (VII) (2007) (PDF 1.2MB)
• Vehicles as Mobile Sensing Platforms for Meteorological Observations: A First Look (2006) (PDF 2MB)

Data Collection and Integration

• Weather Information Integration in Transportation Management Center (TMC) Operations (2011) (PDF 6.6MB)
• Implementation and Evaluation of Sacramento Regional Traffic Management Center Weather Alert Notification System (2010) (PDF 3.5MB)
• Weather Integration in TMC Operations: A Self-Evaluation and Planning Guide (Fact Sheet 2009) (PDF 248KB)
• Integration of Weather Information in Transportation Management Center Operations: Self-Evaluation and Planning Guide (2008) (PDF 592KB)
• Integrating Weather in TMC Operations (2008) (PDF 397KB)
• Integration of Emergency and Weather Elements into Transportation Management Centers (2006)
• U.S. Road Weather Management Program - Sensor Siting and Weather Information Integration Projects (2006)
• Automated Extraction of Weather Variables from Camera Imagery (2005) (PDF 824KB)

Maintenance Management/Maintenance Decision Support System (MDSS)

• Benefit-Cost Assessment of a Maintenance Decision Support System (MDSS) Implementation: The City and County of Denver (2009) (HTML, PDF 718KB)
• Maintenance Decision Support System Deployment Guide (2008) (PDF 1.3MB)
• ITS Standards Impacting the Maintenance Community, Version 2.0 (2007)
• A Case Study of the Maintenance Decision Support System (MDSS) in Maine (2007)
• The Maintenance Decision Support System (Flyer) (2005) (PDF 479KB)
• Deployment of Maintenance Decision Support Systems (MDSS) for Winter Operations (2005) (DOC 2.2MB)
• The U.S. Federal Highway Administration Winter Road Maintenance Decision Support System (MDSS) Project: Overview and Results (2005) (DOC 380KB)
• The Federal Highway Administration's Maintenance Decision Support System Project: Summary Results and Recommendations (2004) (PDF 746KB)
• Intelligent Transportation Systems and Winter Operations In Japan (2003) (PDF 4.9MB)
• Advanced Decision Support For Winter Road Maintenance (2003) (PDF 145KB)
• The Winter Maintenance Decision Support System (MDSS): Demonstration Results And Future Plans (2003) (PDF 1MB)

Operations, Extreme Weather and Climate Change

• Climate Change Adaptation Guide for Transportation Systems Management, Operations, and Maintenance (2015) (HTML, PDF, 5.5MB)
  • Technical fact sheet
  • Technical PowerPoint presentation
  • Executive fact sheet
  • Executive PowerPoint presentation
• Planning for Systems Management & Operations as part of Climate Change Adaptation (2013) (HTML, PDF 1.5MB)

Traffic Analysis and Management

• Integrated Modeling for Road Condition Prediction (IMRCP) – Phase 4 Report (2023) (PDF 3.73MB) (FHWA-HOP-23-003)
• Implementation of Analysis, Modeling, and Simulation Tools for Road Weather Connected Vehicle Applications (Final Report) (2020) (HTML, PDF 2.28MB) (FHWA-HOP-20-060)
• Implementation of Analysis, Modeling, and Simulation Tools for Road Weather Connected Vehicle Applications (Flyer) (2020) (HTML, PDF 732KB) (FHWA-HOP-20-059)
• Integrated Modeling for Road Condition Prediction — Phase 3 Evaluation Report (2020) (HTML, PDF 1.5MB) (FHWA-HOP-20-062)
• Integrated Modeling for Road Condition Prediction Phase 3 Project Report (HTML, PDF 2.0MB)
• Integrated Modeling for Road Condition Prediction: Can IMRCP be a window into the future? (HTML, PDF 736KB)
• Connected Vehicle-Enabled Weather Responsive Traffic Management (PDF 5MB) (FHWA-JP0-17-478)
• Wyoming DOT (WYDOT) Road Condition Reporting Application for Weather Responsive Traffic Management – Final Report (PDF 3.19MB) and Flyer (PDF 838KB)
• South Dakota DOT (SDDOT) Regional Traveler Information System for Weather Responsive Traffic Management – Final Report (PDF 4.3MB) and Flyer (PDF 1.2MB)
• Michigan DOT (MDOT) Weather Responsive Traveler Information (Wx-TINFO) System Implementation Project – Final Report (PDF 7.41MB)
• Implementation of a Weather Responsive Traffic Estimation and Prediction System (TrEPS) for Signal Timing at Utah DOT (2014) (PDF 4.6MB) (FHWA-JPO-14-140)
• Traffic Signal LED Module Specification Workshop and Informational Report for Snow Conditions (2014) (HTML, PDF 5MB) (FHWA-HOP-13-010)
• Utah DOT Weather Responsive Traffic Signal Timing (Full Report) (2013) (PDF 2.8MB) (FHWA-JPO-13-088)
• Utah DOT Weather Responsive Traveler Information System (2013) (PDF 5.7MB)
• Utah DOT Citizen Reporting Program for Road Weather (2013) (PDF 770KB) (FHWA-JPO-13-093)
• Weather Responsive Traffic Signal Timing at Utah DOT (2013) (PDF 993KB) (FHWA-JPO-13-092)
• Use of Mobile Data for Weather Responsive Traffic Management Models (2012) (PDF 1.9MB)
• Guidelines for the Use of Variable Speed Limit Systems in Wet Weather (2012) (PDF 2.7MB)
• Implementation and Evaluation of Weather Responsive Traffic Estimation and Prediction (2012) (PDF 7MB)
• Guidelines for Disseminating Road Weather Advisory and Control Information (2012) (PDF 7MB)
• Guidelines for Disseminating Road Weather Messages—Improved Road Weather Information for Travelers (2013) (PDF 880KB) (FHWA-JPO-13-005)
• First National Workshop and Stakeholder Meeting on Weather Responsive Traffic Management - Summary (2011) (PDF 1 MB)
• Developments in Weather-Responsive Traffic Management Strategies (2011) (PDF 4.2MB)
• Weather Responsive Traffic Management - New Approaches to Improve Safety and Mobility (2011) (PDF 1.1MB)
• Microscopic Analysis of Traffic Flow in Inclement Weather - Part 2 (2010) (PDF 3.1MB)
• Data Mining and Gap Analysis for Weather Responsive Traffic Management Studies (2010) (PDF 4.3MB)
• Traffic Analysis Toolbox Volume XI: Weather and Traffic Analysis, Modeling and Simulation (2010) (HTML, PDF 2.1MB)
• Human Factors Analysis of Road Weather Advisory and Control Information (2010)
• Road Weather Information for Travelers: Improving Road Weather Messages and Dissemination Methods (2010)
• Microscopic Analysis of Traffic Flow in Inclement Weather (2009)
• Weather-Responsive Traffic Management: Real Solutions for Serious Traffic Problems (Fact Sheet 2009) (PDF 106KB)
• Incorporating Weather Impacts in Traffic Estimation and Prediction Systems (HTML, PDF 1.2MB) (2009)
• Weather-Responsive Transportation Management (2006) (PDF 245KB)
• Weather Response System: Operational Observations Report (2006)
• Prototype Weather Response System (WRS) for Transportation Operations (Flyer) (2006)
• Empirical Studies on Traffic Flow in Inclement Weather (2006)
• Arterial Operations in Adverse Weather (2004) (DOC 384KB)
• Weather-Responsive Traffic Signal Control (2003) (DOC 399KB)
• Identifying and Assessing Key Weather-Related Parameters and Their Impacts on Traffic Operations Using Simulation (2003) (PDF 245KB)
• Research Needs for Weather-Responsive Traffic Management (2003) (DOC 341KB)
• Analysis of Weather-Related Crashes on U.S. Highways (2003) (PDF 117KB)
• Analysis of Weather Impacts on Traffic Flow in Metropolitan Washington, D.C. (2003) (PDF 1.4MB)
• Weather Impacts on Arterial Traffic Flow (2002) (DOC 338KB)

Performance Evaluation and Benefit-Cost Analysis

• Road Weather Management Performance Measures: 2021 Update (PDF, 1.5 MB)
• Road Weather Management Performance Measures: 2021 Update Flyer (PDF, 1.8 MB)
• Road Weather Management Performance Measures: 2019 Update Flyer (HTML, PDF 1.1 MB)
• Road Weather Management Performance Measures: 2019 Update (HTML, PDF 3.2 MB)
• Road Weather Management Performance Measures: 2017 Update Flyer (HTML, PDF 1.4 MB)
• Road Weather Management Performance Measures: 2017 Update (HTML, PDF 4.0 MB)
• Regional Assessment of Weather Impacts on Freight (2016) (HTML, PDF 7.4 MB)
• Road Weather Management Performance Measures: 2015 Update (HTML, PDF 1.0 MB)
• The Road Weather Management Benefit Cost Analysis Compendium (HTML, PDF 3.4 MB)
• Principles and Examples of Benefit-Cost Analysis for Road Weather Management – Technical Brief #1 (HTML, PDF 274KB)
• Conducting Benefit Cost Analysis of Road Weather Management Strategies – Technical Brief #2 (HTML, PDF 399 KB)
• Road Weather Management Performance Measures: 2012-2013 Update (PDF 2.2MB)
• Weather Delay Costs to Trucking (2012) (PDF 2MB) (FHWA-JPO-13-023)
• Baselining Current Road Weather Information: Results of the 2010 Quality and Importance Survey Final Report (2011)
• Road Weather Management Performance Measures: A Way to Measure and Monitor Achievement (Fact Sheet 2010) (HTML, PDF 132KB)
• Road Weather Management Performance Metrics: Implementation and Assessment (HTML, PDF 591KB) (2009)
• Road Weather Management Performance Measures: A Way to Measure Achievement (Fact Sheet 2009) (PDF 168KB)
• Baselining Current Road Weather Information: Results of the 2010 Quality and Importance Survey Final Report (2011)
• Road Weather Management Performance Metrics (2008) (PDF 208KB)

Road Weather Information and Data Management Systems

Clarus

• Clarus A Clear Solution for Road Weather Information (PDF 628KB) (FHWA-JPO-11-154)
• Clarus Regional Demonstrations (2011)
  • Results of the Clarus Regional Demonstrations—Evaluation of Enhanced Road Weather Forecasting (2011) (PDF 151KB) (FHWA-JPO-12-014)
  • Results of the Clarus Regional Demonstrations—Evaluation of Four Decision Support Tools (2011) (PDF 518KB) (FHWA-JPO-12-013)
  • Use Case 1: Enhanced Road Weather Forecasting (PDF 3.1MB) (FHWA-JPO-11-155)
  • Use Case #2: Seasonal Load Restriction Tool (PDF 484KB) (FHWA-JPO-11-156)
  • Use Case #3: Maintenance and Operations Decision Support Tool (PDF 436KB) (FHWA-JPO-11-157)
  • Use Case #4: Multistate Control Strategy Tool (PDF 376KB) (FHWA-JPO-11-158)
  • Use Case #5: Enhanced Road Weather Content for Travel Advisories (PDF 576KB) (FHWA-JPO-11-159)
• Clarus Research (2011)
  • Demonstrations of Clarus System Data, Clarus Broad Agency Announcement (BAA) Projects (2012) (PDF 1.1MB) (FHWA-JPO-11-160)
  • Integrating Clarus Data with the New York 511 Traveler Information System (PDF 5.4) (FHWA-JPO-11-112)
  • Passenger Bus Industry Weather Information Application (PDF 14.1MB) (FHWA-JPO-11-123)
  • Western States Clarus One-Stop Shop for Rural Traveler Information (PDF 9.1MB) (FHWA-JPO-11-153)
  • Integrating Clarus Data and State Crash Data into a Travel Decision Support Tool (PDF 1.4MB) (FHWA-JPO-11-162)
  • Integrating Clarus Weather Station Data and State Crash Data into a Travel Decision Support Tool (PDF 1.4MB) (FHWA-JPO-11-162)
  • Integrating Clarus Data in Traffic Signal System Operation: A Survivable Real-Time Weather-Responsive System (PDF 1.9MB) (FHWA-JPO-12-016)
• Evaluations of Clarus Multi-State Regional Demonstrations (2011)
  • Results of the Clarus Demonstrations—Evaluation of Enhanced Road Weather Forecasting Enabled by Clarus (Use Case #1) (2011) (PDF 4.5MB) (FHWA-JPO-11-116)
  • Use Case #2: Seasonal Load Restriction Tool (PDF 4MB) (FHWA-JPO-11-117)
  • Use Case #3: Non-Winter Maintenance Decision Support System (PDF 1.3MB) (FHWA-JPO-11-118)
  • Use Case #4: Multi-State Control Strategy Tool (PDF 1.8MB) (FHWA-JPO-11-119)
  • Use Case #5: Enhanced Road Weather Content for Traveler Advisories (PDF 2.5MB) (FHWA-JPO-11-120)
• Clarus Quality Checking Algorithm Documentation Report (2010) (PDF 215KB)
• Clarus Success Stories: Using Clarus Data to Improve Operations (2009) (HTML, PDF 302KB)
• Clarus: A Clear Solution for Road Weather Information (Flyer) (2007) (PDF 142KB)
• Evolution of The U.S. Department of Transportation Clarus Initiative: Project Status and Future Plans (2006) (PDF 583KB)
• The FHWA Clarus Initiative: The Nationwide Surface Transportation Weather Observing and Forecasting System (2005) (DOC 868KB)
• FHWA's Clarus Initiative: Concept of Operations and Associated Research (2005) (PDF 319KB)
• Concept of Operations for Clarus - The Nationwide Surface Transportation Weather Observing and Forecasting System (2005)
• Clarus: The Nationwide Surface Transportation Weather Observing and Forecasting System (2005) (PDF 473KB)
• Clarus - America's 21^st Century Surface Transportation Weather Observing and Forecasting System (Flyer) (2004) (PDF 277KB)

Road Weather Information Systems (RWIS)

• The Integration of Multi-state Clarus Data Into Data Visualization Tools (2011) (PDF 2.2MB) (FHWA-JPO-12-008)
• Weather or Not? State Liability and Road Weather Information Systems (2010) (PDF 2.8MB)
• Road Weather Information System Environmental Sensor Station Siting Guide Version 2.0 (2008) (PDF 719KB)
• Siting Guidelines for Road Weather Information System (RWIS) Environmental Sensor Stations (ESS) (Flyer) (2005) (PDF 322KB)
• Road Weather Information System Environmental Sensor Station Siting Guidelines Version 1.0 (2005) - Version 2.0 (2008) (PDF 719KB) is available.
• An Introduction to Standards for Road Weather Information Systems (RWIS) (2002) (PDF 293KB)

EDC-4/Weather-Savvy Roads

• Weather-Savvy Roads Resources to Aid Implementation (2019) (HTML, PDF 978KB) (FHWA-HOP-19-002)
• Weather-Savvy Roads Benefits and Costs (2018) (HTML, PDF 4.4MB) (FHWA-HOP-18-032)
• Pathfinder Resources
• 2023/2024 Preparing for a Solar Eclipse (PDF 1.6MB) (FHWA-HOP-22-072)
• Weather-Responsive Management Strategies (WRMS) Fact Sheet - Pathfinder: Arizona’s Coordinated Messaging on Snowstorm Impacts (2022) (PDF 1.4MB) (FHWA-HOP-22-054)
• Truckee, California: Adopting Pathfinder Principles (2018) (HTML, PDF 1.7MB) (FHWA-HOP-18-074)
• Pathfinder: Implementation Recommendations (2018) (PDF 2.1MB) (FHWA-HOP-18-059)
• What is Pathfinder? (2018) (HTML, PDF 1.5MB) (FHWA-HOP-18-034)
• Wyoming Department of Transportation Total Solar Eclipse (2018) (HTML, PDF 1.4MB) (FHWA-HOP-18-033)
• Colorado's Pathfinder Process (2018) (HTML, PDF 1.4MB) (FHWA-HOP-18-028)
• Integrating Mobile Observations (IMO) Resources
  • Lessons from Front Line Deployers (2018) (HTML, PDF 1.9MB) (FHWA-HOP-18-076)
  • West Des Moines: A City's Approach to Vehicle-based Technologies (2018) (HTML, PDF 1.8MB) (FHWA-HOP-18-075)
  • Integrating Mobile Observations (IMO) Overview (2018) (HTML, PDF 1.3MB) (FHWA-HOP-18-041)
  • Using the National ITS Architecture for Implementing Weather-Savvy Roads: Integrating Mobile Observations (2018) (HTML, PDF 2MB) (FHWA-HOP-18-031)
  • Leveraging Multiple Communications Systems for Vehicle-Based Data Sharing: Nevada Department of Transportation Case Study (2018) (HTML, PDF 878KB) (FHWA-HOP-18-030)
  • Getting Data into the Weather Data Environment (2018) (HTML, PDF 1.6MB) (FHWA-HOP-18-029)

EDC-5/Weather Responsive Management Strategies

• Weather-Responsive Management Strategies (WRMS) Fact Sheet: Florida Department of Transportation Bridge Wind Speed Alerting System (2021) (PDF 1.7MB) (FHWA-HOP-21-088)
• Weather-Responsive Management Strategies for Hurricane Recovery in Louisiana, Pennsylvania, and New Jersey (2023) (PDF 3.2MB) (FHWA-HOP-23-012)
• Arizona Department of Transportation Dual Use Safety Technology (DUST) Warning System (PDF 296KB) (FHWA-HOP-22-071)
• WRMS Factsheet: The City of Fort Collins (2022) (PDF 4.8MB) (FHWA-HOP-22-057)
• Utah’s and Minnesota’s Snowplow Signal Preemption and Priority (2022) (PDF 1.3MB) (FHWA-HOP-22-053)
• Weather-Responsive Management Strategies (WRMS) Fact Sheet: A Comparison of Crowdsourcing Approaches for Road Weather Information (2021)
• Leveraging Road Weather Data for Performance Management Dashboards and Reports (HTML, PDF 1.4MB) (FHWA-HOP-20-051)
• Weather-Responsive Management Strategies for Traveler Information During Flood Events (HTML, PDF 2.5MB) (FHWA-HOP-20-045)
• Weather-Responsive Management Strategies — Transportation Agency Deployment (HTML, PDF 2.9MB) (FHWA-HOP-20-015)
• Weather Responsive Management Strategies (WRMS)—Minnesota DOT Case Study (HTML, PDF 1.5 MB) (FHWA-HOP-19-080)

Adaptive Route Optimization (ARO) for Operations

• Adaptive Route Optimization (ARO) for Operations – Concept of Operations Version 2 (2024) (PDF 1.2MB) (FHWA-HOP-24-055)
• Adaptive Route Optimization (ARO) for Operations - Feasibility and Readiness Report (2024) (PDF 1MB) (FHWA-HOP-24-043)
• Adaptive Route Optimization - System Requirements flyer (2022) (PDF 559KB) (FHWA-HOP-22-063)
• Adaptive Route Optimization - System Requirements (2022) (PDF 1.2MB) (FHWA-HOP-22-029)
• Adaptive Route Optimization – Concept of Operations Flyer (2022) (PDF 555KB) (FHWA-HOP-22-055)
• Adaptive Route Optimization - Literature Review, Technology Scan, and Interviews Final Report (2022) (PDF 1.2MB) (FHWA-HOP-21-098)

Automated Vehicles and Adverse Weather

• Automated Vehicles and Adverse Weather Phase 3 – Final Report (2021) (PDF 3.8MB) (FHWA-HOP-21-047)
• Automated Vehicles and Adverse Weather – Phase 3 Flyer (2021) (PDF 682KB) (FHWA-HOP-21-046)
• Automated Vehicles and Adverse Weather Phase 2 – Final Report (2019) (PDF 4MB) (FHWA-JPO-19-755)

Road Weather and Climate Resilience

• Climate Resilience Risk Assessment Tool and Guide: Literature Review, Technology Scan, and Interviews Report (2023) (PDF 2.3MB) (FHWA-HOP-23-047)