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Roadway Safety Data Partnership – Presentations – Office of Highway Policy Information (OHPI)


Roadway Safety Data Partnership

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Michael S. Griffith

Director, Office of Safety Technologies
Federal Highway Administration









Safe Roads for a Safer Future - Investment in roadway safety saves lives

U.S. Department of Transportation Federal Highway Administration


Our Commitment

FHWA is committed to addressing these issues:

  • States have difficulty combining crash, roadway, traffic and other data for the best analysis.
  • States need assistance in improving the quality of their Crash and Roadway Data
  • States often don't know where to start in setting Goals/Plans for Data Improvement
  • We (and states) don't always know what states need in these areas


Collage of safe material

FHWA Office
of Safety







Roadway Safety Data partnership, Collecting, Analyzing, Managing, Expanding


Highway Safety Manual (HSM)

Stack of Hiway Safety Manuals

Part A – Introduction, Human Factors, and Fundamentals

Chapter 1 – Introduction and Overview
Chapter 2 – Human Factors
Chapter 3 – Fundamentals

Part B – Roadway Safety Management process

Chapter 4 – Network Screening
Chapter 5 – Diagnosis
Chapter 6 – Select Countermeasures
Chapter 7 – Economic Appraisal
Chapter 8 – Prioritize Projects Chapter 9 – Safety Effectiveness Evaluation

Part C – Predictive Method

Chapter 10 – Rural Two-Lane Roads
Chapter 11 – Rural Multilane Highways
Chapter 12 – Urban and Suburban Arterials

Part D – Crash Modification Factors

Chapter 13 – Roadway Segments Chapter 14 – Intersections
Chapter 15 – Interchanges
Chapter 16 – Special Facilities
Chapter 17 – Road Networks


Arrow-Left: Normial Safety; Arrow-Right: Substantive Safety

Highway Safety Manual Emblem
The expected or actual
crash frequency and
severity for a highway or

A Policy on Geometric Design of Highways and Streets 2004 booklet
Examined in reference to
compliance with standards,
warrants, guidelines
and design





HSM Implementation Support

Highway Safety Manual

Types of Support:

  • Outreach
  • Training
  • Technical Assistance
  • Guidance
  • Coordination





Training and Guidance

  • Training
    • HSM Practitioners workshop available at http://www.nhi.fhwa.dot.gov (Ongoing)
    • HSM Train-the-Trainer Workshop (Spring 2012)
    • HSM Web based informational course (Winter 2011)
  • Guidance (Fall 2011)
    • HSM Training Needs Guide
    • HSM Implementation Guide for Managers
    • HSM Application Guide


Roadway Safety Data Partnership, Collecting, Analyzing, Managing, Expanding

Current Products
and Tools

  • Model Inventory of Roadway Elements (MIRE)
  • Fundamental Data Elements Guidance (FDE)
  • MIRE Management Information System (MIRE MIS)
  • Crash Data Improvement Program (CDIP)
  • Roadway Data Improvement Program (RDIP)
  • Cost Benefit for Data Investment
  • Capability Assessment



  • First version published in 2010
  • List of over 200 roadway data elements:
    • Definition
    • Attributes to describe
    • Priority rating (critical or value-added)
  • Part of analytic tool or HPMS Provides a consistent state of practice and standards for roadway data formatting


Fundamental Data Elements Guidance

Background Report - Guidance for Roadway Safety the Highway Safety ImrprovementMarket Analysis of Collecting Fundamental Roadway Data Elements to Support the Highway Safety Improvement Program








Online at: http://safety.fhwa.dot.gov/tools/data_tools/dcag.cfm



Companion effort to MIRE to develop adoptable model of data information system

Lead Agency Program (NH & WA)

  • Data Format Evaluation
  • Promote expansion of MIRE data elements being collected
  • Performance Measures of Characteristics



Technical Assistance Programs to assess State Crash/Roadway Data Processes and Systems

Recommendations for Data Improvement provided to the State in a Summary Matrix on the issues of data:

  • Timeliness
  • Accuracy
  • Completeness
  • Consistency
  • Integration (linkages)
  • Accessibility (sharing)


Cost Benefit of Data Investment

Planned to determine cost benefits for investing in Data Systems and Processes

Scaled Investment Benefit Methodologies

Assist decision-makers in weighting benefits of data investment against other investments


Capability Assessment

Develop State capability baselines Work with States to identify desired goal capability level

Assess national capability and identify national gaps Determine opportunities for national leadership & programs, Develop a National action plan.

Work with States to develop State-specific action plan frameworks Identify available resources and peer exchange in 2012-2013.



Screenshot of Roadway Safety Website


How can States get involved?

  • Sign up for Capability Assessment to gauge your States level of data-driven capability
    –(where are we? what can we do with what we have now?)
  • Take advantage of CDIP/RDIP Technical Assistance to evaluate your crash and roadway data collection program along critical dimensions
    – (how do we improve what we have?)



FHWA is committed to:

  • Ensuring that States can combine crash, roadway, traffic and other data for the best analysis.
  • Helping States to Improve their Roadway Data
  • Helping States to Set Goals/Plans for Data Improvement
  • Listening to What States' Need in these Areas


How to find more info

Capability Assessment
Cost Benefit of Data Investment
Bob Pollack
Heather Rothenberg




Page last modified on November 7, 2014.
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