Roadway Safety Noteworthy Practices


Publication Year State Topics Title
2016 AL
  • Safety Data
 

Alabama Creates Safety Planning Tools for MPOs
The Alabama Department of Transportation (ALDOT) led the effort to develop ALSAFE, a spreadsheet-based safety tool that can be used for short- and long-range transportation safety planning. ALDOT developed   More...

2016 AZ
  • Safety Data
  • Tribal, Local, & Rural Road Safety
 

Arizona Imports Local and Tribal Data for Safety Analysis
The Arizona Department of Transportation (ADOT) and the Federal Highway Administration (FHWA) Office of Safety completed a pilot project that allows the State to acquire roadway data elements from local   More...

2015 RI
  • Safety Data
  • Safety Programs
 

Building a Stronger Database for Predictive Safety Analysis
While many states have made significant strides towards the inclusion of all public roadways in their Highway Safety Improvement Program (HSIP) efforts, an evident disconnect often exists between the   More...

2017 CA
  • Safety Data
  • Safety Programs
 

Caltrans CAL-B/C Tool Supports Benefit-Cost Analysis for Highway and Transit Projects
The California Department of Transportation (Caltrans) must continuously justify the economic effectiveness of their programs and expenditures. In selecting among alternative projects and programs, there   More...

2016 CO
  • Safety Data
 

Colorado Uses GIS to Implement Level of Service of Safety
Design engineers at the Colorado Department of Transportation (CDOT) developed the LOSS method as an alternative to using crash rates for evaluating safety. The LOSS method compares a roadway segment’s   More...

2013 AZ , CO
  • Safety Data
 

Crash Modification Factors in Practice: Quantifying Safety in the Development and Analysis of Alternatives - Arizona and Colorado Case Studies
Crash Modification Factors (CMFs) can be applied in the development and analysis of alternatives to estimate the safety performance when the advantages and disadvantages of each alternative are considered.   More...

2013 MI
  • Safety Data
 

Crash Modification Factors in Practice: Quantifying Safety in the Roadway Safety Audit Process - Michigan Case Study
Crash Modification Factors (CMFs) can be applied in the Roadway Safety Audit (RSA) process to quantify the safety effects of various treatments and justify the RSA team suggestions to the project owner   More...

2013 VA
  • Safety Data
 

Crash Modification Factors in Practice: Quantifying Safety in the Roadway Safety Management Process - Virginia Case Study
In 2007, the Virginia Department of Transportation (VDOT) started a new program, Strategically Targeted Affordable Roadway Solutions (STARS), aimed at critical safety and congestion hot spots throughout   More...

2013 CA , MO
  • Safety Data
 

Crash Modification Factors in Practice: Using CMFs to Quantify the Safety Performance of Design Decisions and Exceptions - California and Missouri
Crash Modification Factors (CMFs) can be applied in the development and analysis of alternatives to estimate the safety performance when the advantages and disadvantages of each alternative are considered.   More...

2019 VA
  • Roadway Departure
  • Safety Data
 

Data- and Technology-Driven Strategic Guardrail Management Program
In Virginia, approximately two thirds of fatalities are the result of roadway departure crashes. Various national research studies indicate that having appropriate guardrail can produce a crash reduction   More...

2016 NJ , PA
  • Safety Data
  • Safety Programs
 

Delaware Valley Regional Planning Commission (DVRPC) Integrates Safety Into the Planning Process at the MPO Level
Transportation planning is a continuous, comprehensive, and cooperative (3C) performance-driven process by which States, metropolitan transportation planning organizations (MPOs), and transit operators   More...

2017 DE
  • Safety Data
 

Delaware Valley Regional Planning Commission’s Innovative Traffic Data Sharing Practices
This case study highlights how the Delaware Valley Regional Planning Commission (DVRPC) promotes traffic data sharing with other agencies and makes traffic and geographic information system data available   More...

2013 MO
  • Safety Data
 

Evaluating Opportunities Using Predicted Crash Frequency with CMF Adjustment - Missouri Case Study
The following case study illustrates how the Predicted Crash Frequency with CMF Adjustment method has been used to explicitly consider the safety impacts of opportunities during the Value Engineering   More...

2017 FL
  • Safety Data
  • Safety Programs
 

FDOT’s Transportation Value to You (TransValU) Supports Benefit-Cost Analysis
Transportation agencies are often faced with difficult decisions and need to answer questions like “which transportation project will provide the greatest return on investment?” To answer such questions,   More...

2020 FL
  • Pedestrians, Bicyclists, & Vulnerable Users
  • Safe System & Safety Culture
  • Safety Data
  • Speed Management
 

Fletcher Avenue Complete Streets Redesign – Hillsborough County, Florida
The Hillsborough County Metropolitan Planning Organization (MPO), in the Tampa, Florida region, identified several corridors in the roadway transportation network that would benefit from infrastructure   More...

2013 FL
  • Safety Data
 

Florida Highway Patrol Piloting Signal Four Analytics, a Web-based Crash Mapping and Analysis Tool
Traffic crash data is available now in greater detail than ever, but making sense of this data remains a challenge to law enforcement, transportation planners, and traffic engineers. These professionals   More...

2012 FL
  • Safety Data
 

Florida Uses Predictive Methods found in the Highway Safety Manual (HSM) for Alternative Selection in Florida (HSM Case Study 3)
The American Association of State Highway and Transportation Officials' (AASHTO's) Highway Safety Manual Part C Predictive Method (Chapters 10-12) estimates crash frequency and severity. The predictive   More...

2011 FL
  • Safety Data
  • Safety Programs
 

Florida Uses Web Tool to Develop State-Specific Crash Reduction Factors
Crash reduction factors (CRF) provide agencies with an estimate of the expected crash reduction and/or benefits associated with various countermeasures. However, since local conditions (e.g., roadway,   More...

2015 FL
  • Safety Data
 

Florida: Advanced Lighting Measurement System

  • The Safety Concern: Collecting crucial data on lighting intensity was labor intensive, expensive, and dangerous.
  • The Solution: Deployment of an Advanced Lighting Measurement System.
  • The   More...

2015 MD , VA
  • Safety Data
  • Safety Programs
 

Focusing on Crash Severity in HSIP Project Selection
Crash data remains a fundamental component of virtually any safety analysis. States use it to identify spot safety improvements, screen for systemic safety improvements, diagnose specific safety concerns,   More...

2013 MI
  • Safety Data
  • Tribal, Local, & Rural Road Safety
 

Genesee County (Flint, Michigan) Uses usRAP to Develop Safety Improvement Plan for County Roads
In 2012, the Genesee County Road Commission (GCRC) in Flint, Michigan, signed an agreement for a U.S. Road Assessment Program (usRAP) Safety Improvement evaluation of the county road system. Initiated   More...

2010 GA
  • Safety Data
 

Governor's Office of Highway Safety Adds Epidemiologist to Strengthen Crash Analysis Capabilities
To thoroughly investigate the behavioral aspects of highway safety, a number of datasets must be merged. In Georgia, the DOT provides location-specific crash data to the Governor's Office of Highway Safety   More...

2013 ID
  • Safety Data
 

Idaho Uses Highway Safety Manual Methodology to Identify Priority Locations for Safety Improvements
To improve cost effectiveness in funding safety projects, Idaho Transportation Department used an innovative, data-driven program for safety analysis on roadways throughout the State. Project include   More...

2011 ID
  • Safety Data
 

Idaho Uses Predictive Methods in IHSDM to Evaluate Safety in Idaho 8 Corridor
Idaho used FHWA's Interactive Highway Safety Design Model (IHSDM) along the Idaho 8 corridor to evaluate existing traffic, roadway geometry, and predict crashes using these and the corridor's recent crash   More...

2016 IL
  • Safety Data
 

Illinois Conducts State-Specific Highway Safety Manual and Systemic Safety Analysis
The Illinois Department of Transportation (IDOT) published the AASHTO Highway Safety Manual Illinois User Guide with Illinois Calibration Factor and Default Values in 2014. This guidebook provides guidance   More...

2014 IL
  • Safety Data
 

Illinois Develops Safety Performance Functions for Network Screening
In 2006, the Illinois Center for Transportation, Illinois Department of Transportation (IDOT), and the University of Illinois at Urbana-Champaign performed a research project to develop state-specific   More...

2011 IL
  • Performance Measures & Evaluation
  • Safety Data
  • Safety Programs
 

Illinois Develops SPFs for All State Routes and Intersections
While the development of SafetyAnalyst and the Highway Safety Manual was still underway, Illinois decided to incorporate a new analysis technique to assist the state in moving forward with the implementation   More...

2014 IL
  • Safety Data
 

Illinois DOT Provides Local Public Agencies with Assistance on the Use of Safety Data
The Illinois Department of Transportation (IDOT) is committed to reducing the number of fatalities on Illinois roadways. To this end, the IDOT Bureau of Safety Engineering, which was initially created   More...

2016 IL
  • Safety Data
 

Illinois Implements Enterprise Data Governance Approach for Improved Road Safety
The Illinois Department of Transportation (IDOT) has implemented an enterprise data governance approach for managing the collection, storage, distribution, and usage of data across the organization. IDOT   More...

2015 IL
  • Safety Data
 

Illinois Safety Portal Makes Key Data Easily Available to Safety Stakeholders
For years, Illinois county engineers wanted access to crash reports for their studies. State legislation was changed to include local governmental agencies, but they still had to sign an inter-governmental   More...

2014 LA
  • Safety Data
 

Integrating Safety Analysis in Project Development in Louisiana
The scope of this case study includes all public roads in Louisiana, and multiple operations within the LADOTD. Safety practices are implemented in the following areas: Maintenance: The project designers   More...

2014 WA
  • Safety Data
 

Interoffice Safety Groups at Washington State DOT Use Quantitative Data Evaluation to Determine Strategies Across the “4Es”
Unique among State Departments of Transportation, the Washington State Department of Transportation (WSDOT) does not have a centralized safety office. Rather, safety is central to decisionmaking across   More...

2016 IA
  • Safety Data
 

Iowa Uses Real-Time Data Integration of Snowplow Information and Roadway Safety
The Iowa Department of Transportation (DOT) deploys about 900 snowplows each winter to plow 9,479 centerline miles of road and 25,215 lane miles of roadway. The Iowa DOT continuously seeks ways to improve   More...

2014 LA
  • Safety Data
 

Louisiana Department of Transportation and Development Provides Reduced Data-collection Costs to Local Agencies While Ensuring Data Consistency
The Louisiana Department of Transportation and Development (LADOTD) recognizes the importance of data-driven operations, design, and safety decisionmaking on both State and local roadways. The State's   More...

2011 LA
  • Safety Data
  • Safety Programs
 

Louisiana Hires Law Enforcement Expert to Improve Data Collection among Law Enforcement Agencies
The Louisiana Department of Transportation and Development (LDOTD) is responsible for collecting motor vehicle crash data for the entire State of Louisiana, as well as maintaining the state crash database.   More...

2016 MD
  • Safety Data
 

Maryland Supports Decision Making with Data Linkage and Analysis
Highway traffic safety analysis is a multi-dimensional process involving roadway characteristics, volumes, and crash data. State agencies may encounter difficulties sharing data between agencies and integrating   More...

2015 MI
  • Safety Data
 

Michigan Department of Transportation Uses Safety Data Processes
The purpose of this case study is to summarize how the Michigan Department of Transportation (MDOT) incorporates a data governance structure into their standard business operations and how it has helped   More...

2010 MI
  • Safety Data
  • Safety Programs
 

Michigan DOT Uses MOU to Define Roles Among Data Generators
The Michigan DOT (MDOT), Department of State, and State Police signed a memorandum of understanding (MOU) defining crash data management and funding. The State agencies invested in a team of three people,   More...

2014 MI
  • Safety Data
 

Michigan Undertakes Initiatives to Encourage a Data-Driven Approach to Local Roadway Safety
To maximize returns on investment in preparing, utilizing, and maintaining a strong safety data system, the Michigan Department of Transportation (MDOT) has undertaken a number of programs that make use   More...

2014 MI
  • Safety Data
 

Michigan's Roadsoft Program Enables Local Agencies to Collect and Maintain Data, while Preserving Local Ownership and Control
This case study, available as part of the Federal Highway Administration's (FHWA) Integration of State and Local Safety Data project, describes Michigan's efforts to integrate local roadway data into   More...

2017 MN
  • Safety Data
  • Tribal, Local, & Rural Road Safety
 

Minnesota: Implementation of Data-Driven Safety Solutions

  • The Safety Concern: County roads in Minnesota account for half of all fatal crashes, but less than a quarter of vehicle-miles traveled in the state.
  • The Solution: Development and implementation   More...

2015 NH
  • Safety Data
 

New Hampshire Department of Transportation Uses Safety Data Systems and Processes to Improve Traffic Safety
The purpose of this case study is to highlight noteworthy practices of the New Hampshire Department of Transportation (NHDOT) in leveraging technology to enhance safety data management—in particular,   More...

2015 NH
  • Safety Data
 

New Hampshire Develops Intersection Inventory to Improve Road Safety
One of the major challenges transportation agencies face when trying to address intersection safety is not having a sufficient intersection inventory that provides location, operations, or geometrics   More...

2010 NJ
  • Safety Data
  • Safety Programs
 

New Jersey Partnership Provides Technical Support to Local Agencies on Crash Data Analysis
To support SHSP implementation at all levels, New Jersey identified a need to increase technical safety support to local agencies. The Transportation Safety Resource Center (TSRC) was established by hiring   More...

2011 NJ
  • Safety Data
  • Safety Programs
 

New Jersey Provides Data Decision Support Tool to SHSP Partners
The New Jersey Department of Transportation (NJDOT) recognized a need to provide transportation safety data in a more user-friendly format. Providing easier access to data and enhanced analytic capabilities   More...

2017 NY
  • Safety Data
 

New York State Department of Transportation Work with Local Agencies to Reduce Duplicate Data Collection and Improve Data Analysis
This case study highlights two noteworthy practices at the New York State Department of Transportation (NYSDOT) regarding traffic data collection agreements with local agencies and random sampling procedures   More...

2019 NJ
  • Safety Data
  • Safety Programs
 

NJDOT Launches Data Driven Interactive Tool (Safety Voyager) to Provide Quick and Visual Perspective of Crash Data in New Jersey
A major focus of the New Jersey Department of Transportation's (NJDOT) data driven interactive tool Safety Voyager is to provide a quick and visual perspective of crash data in New Jersey. Data Analysis   More...

2016 NC
  • Safety Data
 

North Carolina Creates State-Specific CMFs
North Carolina is one of a small number of States that have actively pursued developing their own crash modification factor (CMF) “short list” for countermeasures that are deployed throughout the State.   More...

2013 OH
  • Safety Data
  • Tribal, Local, & Rural Road Safety
 

ODOT's GCAT GIS Tool Helps Local Roadway Agencies Justify Funding Requests for Road Safety Improvement
Local roadway agencies need a method for obtaining the data necessary to justify funding requests for road safety improvement projects. The Ohio Department of Transportation (ODOT) developed a crash-mapping   More...

2010 OH
  • Safety Data
  • Safety Programs
 

Ohio Develops Centralized Data Source for All SHSP Partners
The SHSP process requires data from a variety of sources to support the emphasis areas. If a central data source is not available, emphasis area teams may use conflicting data. When the safety data used   More...

2011 OH
  • Safety Data
 

Ohio DOT Implements New Roadway Safety Management Process with AASHTOWare SafetyAnalystTM
ODOT's use of AASHTOWare Safety AnalystTM allowed it to develop multiple screening methods in the network screening process resulting in greater identification of rural corridors and projects.   More...

2017 OH
  • Safety Data
  • Safety Programs
 

Ohio Economic Crash Analysis Tool (ECAT) Supports Benefit-Cost Analysis
The Ohio Department of Transportation (ODOT) uses a data-driven approach to identify, screen, and prioritize potential highway safety improvement projects. ODOT analyzes crash, roadway, and traffic data   More...

2014 OH
  • Safety Data
 

Ohio, with Stakeholder Input, Develops Consistent Mapping and Data Standards for State and Local Roads
This case study, available as part of the Federal Highway Administration's (FHWA) Integration of State and Local Safety Data project, describes Ohio's efforts to integrate local roadway data into their   More...

2016 OR
  • Safety Data
 

Oregon Consolidates Transportation Data
With almost 20,000 lane miles on the Oregon highway system, the Oregon Department of Transportation (ODOT) is responsible for managing and maintaining its roadway assets. Managed assets include barriers,   More...

2017 OR
  • Safety Data
 

Oregon DOT Implements Two New Tools that Evaluate Asset Condition and Efficiently Manage Maintenance Efforts
With almost 20,000 lane miles on the Oregon highway system, the Oregon Department of Transportation (ODOT) is responsible for managing and maintaining its roadway assets. Managed assets include barriers,   More...

2016 PA
  • Safety Data
 

Pennsylvania Develops State-Specific SPFs and CMFs
The Pennsylvania Department of Transportation (PennDOT) used Part C of the Highway Safety Manual (HSM) to develop State-specific safety performance functions (SPFs). For some facility types, PennDOT developed   More...

2020 WA
  • Pedestrians, Bicyclists, & Vulnerable Users
  • Safe System & Safety Culture
  • Safety Data
  • Speed Management
 

Rainier Avenue South Redesign – Seattle, Washington
The Rainier Valley neighborhood located in southeast Seattle is home to one of the City’s most culture-rich and diverse populations. Rainier Avenue South is a principal arterial street that connects residents   More...

2019 WA
  • Safe System & Safety Culture
  • Safety Data
  • Tribal, Local, & Rural Road Safety
 

Road Safety Improvement Program – Garfield County, WA
Despite a commitment to work with Federal and State Agencies to make roadway safety a top priority and move “Towards Zero Deaths” (TZD), Garfield County, WA lacked a data-driven, systematic process for   More...

2019 CA
  • Pedestrians, Bicyclists, & Vulnerable Users
  • Safe System & Safety Culture
  • Safety Data
 

San Francisco Implements Vision Zero Policy that Focuses on Safe Streets, Safe People, and Safe Vehicles
In 2017 and 2018, San Francisco saw historic lows in traffic-related deaths on its streets. However, every year in San Francisco, approximately 30 people lose their lives and more than 500 are severely   More...

2017 MI
  • Safety Data
 

SEMCOG’s Innovative Traffic Data Quality Assurance/Quality Control and Automated AADT Estimation Reduce Labor Costs Associated with Converting and Entering Data
This case study highlights two noteworthy practices at the Southeast Michigan Council of Governments (SEMCOG) regarding short-duration traffic count validation procedures and an automated annual average   More...

2010 OH
  • Safety Data
  • Safety Programs
 

SHSP Committee Provides Forum for Data Collection Improvements
Since data is the foundation of transportation safety planning, the Ohio Department of Transportation identified data improvement as one of the priority emphasis areas in its SHSP. Each year the Federal   More...

2016 SC
  • Safety Data
 

South Carolina Uses Electronic Crash System Deployment for Safety Data Improvements
The South Carolina Department of Transportation (SCDOT) and the South Carolina Department of Public Safety (SCDPS) implemented the South Carolina Collision and Ticket Tracking System (SCCATTS), a long-term   More...

2020 CA
  • Intersection Safety
  • Pedestrians, Bicyclists, & Vulnerable Users
  • Safe System & Safety Culture
  • Safety Data
  • Safety Programs
 

Systemic Safety Analysis – San Diego, California
In 2015, the City of San Diego adopted a Vision Zero approach to eliminate fatalities and serious injuries on City streets by 2025. This approach included the development and implementation of strategies   More...

2016 TN
  • Safety Data
 

Tennessee Develops Horizontal Curve Database
In 2012, The Tennessee Department of Transportation (TDOT) accomplished its initial data collection for its entire roadway network, which includes all interstates, state highways, arterials, collectors,   More...

2014 TN
  • Safety Data
 

Tennessee Updates Roadway Information Management System (TRIMS) State Roads Database to Include Local Road Data
This case study, available as part of the Federal Highway Administration's (FHWA) Integration of State and Local Safety Data project, describes Tennessee's efforts to integrate local roadway data into   More...

2014 UT
  • Safety Data
 

UDOT's Advanced Data Collection Methods Result in Better Quality of Roadway/Asset Data and Improved Internal Management of Data
The Utah Department of Transportation (UDOT) used state-of-the-art data collection methods to collect roadway condition, location and roadway asset data.Within UDOT, Asset Management, Safety, Planning   More...

2016 KY , UT
  • Safety Data
 

Utah and Kentucky Make Innovative Use of GIS-Based Tools
The United States Road Assessment Program (usRAP) is a tool transportation agencies can use to rate their roadways for safety and identify strategies for systematic improvement. UPlan is an interactive   More...

2014 UT
  • Safety Data
 

Utah Collects and Uses Roadway Asset Data
Quality data are the foundation for making important decisions regarding the design, operation, and safety of roadways. While crash data have been a consistent element of highway safety analysis, in recent   More...

2015 UT
  • Safety Data
 

Utah Department of Transportation Uses Safety Data Processes and Governance Practices
The purpose of this case study is to highlight innovative data management strategies at Utah Department of Transportation (UDOT) that support the use of technology to benefit safety programs. In addition   More...

2017 VA
  • Safety Data
 

Virginia Department of Transportation Uses Innovative Procedures in Traffic Volume Estimation
This case study presents how the Virginia Department of Transportation (VDOT) estimates traffic volumes on secondary local roadways using a trip generation method instead of taking short-duration counts   More...

2015 VA
  • Safety Data
 

Virginia Develops and Uses State-Specific Performance Functions (SPFS)
The Virginia Department of Transportation (VDOT) emphasizes data-driven decision-making and desires to improve safety and safety data. From this desire, VDOT implemented a comprehensive set of State-specific   More...

2019 VA
  • Safety Data
  • Safety Programs
 

Virginia Uses SMART SCALE to Evaluate Safety Benefits of Proposed Projects
To ensure the best use of limited transportation funds when selecting projects for the State's long-range transportation plan, the Virginia Department of Transportation uses the SMART SCALE tool to help   More...

2016 WA
  • Safety Data
  • Tribal, Local, & Rural Road Safety
 

Washington State and Tribes Share Data to Improve Transportation Safety
In Washington State, the traffic fatality rate for Native Americans is 3.5 times higher than the rest of the population. Tribal and State agencies have recognized the need for improved data in order to   More...

2014 WI
  • Safety Data
 

Wisconsin's Information System for Local Roads Expands Local Access to Data while Integrating State and Local Safety Data Systems
This case study, available as part of the Federal Highway Administration's (FHWA) Integration of State and Local Safety Data project, describes Wisconsin's efforts to integrate local roadway data into   More...

2015 FL
  • Safety Data
  • Safety Programs
 

Working with Locals to Improve Safety Data
One of the key challenges every state faces in addressing its safety issues is the availability of timely and accurate crash data. The Moving Ahead for Progress in the 21st Century Act (MAP-21) made this   More...

Noteworthy Practices in Public Roads

The Secret to Making Federal Tax Dollars Work for Your State - Florida accesses FHWA funds more quickly with its Design Build Push Button contracting process.

Digitizing for Better Decisionmaking - A successful government-academia partnership in Michigan helps local agencies make data-driven decisions on road safety.

Contacts

RSPCB Program Point of Contact
Felix Delgado, FHWA Office of Safety
Felix.Delgado@dot.gov

Safety and Design Team
FHWA Resource Center

Staff and Primary Work Responsibilities
FHWA Office of Safety