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Crash Data Collection and Uses. Describe the process by which crash data are collected and used in road safety management. Major Topics. Importance of Accurate Data Data Collection Process Data Improvement Strategies Use of Safety Data in Road Safety Management. Crash Data Accuracy.

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Crash data collection and uses
Crash Data Collection and Uses

Describe the process by which crash data are collected and used in road safety management.


Major topics
Major Topics

  • Importance of Accurate Data

  • Data Collection Process

  • Data Improvement Strategies

  • Use of Safety Data in Road

    Safety Management


Crash data accuracy
Crash Data Accuracy

  • Case Study

    • 60% of rural crashes coded to the zero milepost

    • 81% of cross roads were missing

    • 1/3 of all crashes missing location data

  • Implications

    • HSIP

    • HSP

    • CVSP

    • SHSP


The torturous path of crash data collection
The “Torturous Path” of Crash Data Collection

  • Crash Occurs

  • Crash Report Completed

  • Data Recorded in Database

  • Crash Data Transferred to State Database

  • Data Analyzed and Disseminated


Data deficiencies
Data Deficiencies

  • Integration

  • Accessibility

Timeliness

Accuracy

Completeness

Uniformity (or consistency)


Overcoming data deficiencies
Overcoming Data Deficiencies

  • Training and Education

    • Law enforcement officers

    • Court officials and adjudicators

    • Crash Report System Administrators

  • Update or Review Crash Report Form


Overcoming deficiencies cont
Overcoming Deficiencies (cont.)

  • Technology (electronic collection, linkage, location identification, etc.)

  • Policies and Procedures

  • Collaboration (i.e., TRCC)


Electronic reporting systems
Electronic Reporting Systems

  • Traffic and Criminal Software (TraCS)

  • Crossroads Traffic Collision Database

  • Mobile Capture and Reporting System (MCRS)


408 grant requirements
§408 Grant Requirements

  • First year grant

    • TRCC

    • Multi-year strategic plan

  • Subsequent year grant

    • Traffic records assessment

    • TRCC

    • Multi-year plan

    • Grant funding specifications

    • Measurable progress


Nhtsa state partnership
NHTSA/State Partnership

  • Traffic Records Program Needs Assessment

    • Compare a state traffic safety program with current guidelines

    • Report on the strengths and weaknesses of core systems 

  • Traffic Safety Information System Strategic Plan

    • Strategic action plan to address system deficiencies – “living document”

    • Encourage statewide integration of systems and resources


Mmucc data elements

Crash

Vehicle

MMUCC Data Elements

Person

Roadway

  • Collected - Collected at the scene and recorded onto crash report

  • Derived - Generated from computerized crash data

  • Linked – Linked to injury, driver history, vehicle registration, roadway inventory, or other data files.


Data uses for road safety management
Data Uses for Road Safety Management

Use of Data

Political Agendas

Engineering Judgment

Conventional Wisdom

11


The benefits of using data
The Benefits of Using Data

Crash Trends

High Crash Locations

High Risk Groups

Contributing Factors

Program Evaluation

12


High crash locations
High Crash Locations

Number of Crashes

Severity of Crashes

Exposure, e.g., Volume of Traffic

Contributing Factors

13


High risk groups
High Risk Groups

Comparing Crashes to National Averages

Location

Contributing Factors

Age

Helmet use

Alcohol involvement

Speeding

Unendorsed

14


Evaluation basics
Evaluation Basics

Purpose

To determine the benefits and costs of each strategy or action

To determine the effect of the overall program

Types of Evaluation

Formative - Assesses ongoing project activities

Summative - Collects information about outcomes and related processes, strategies, and activities

15


Program evaluation
Program Evaluation

Crash Reports and Statistics

Costs

Program Management Policies and Procedures

Public Knowledge and Attitude Surveys

16


Evaluation measures
Evaluation Measures

Identify Problems

Plan New Programs

Improve Existing Programs

Evaluate Resource Allocation/Utilization

Assess Effectiveness of Operational Policies, Procedures, and Protocols

17


Review
Review

  • Importance of Accurate Data

  • Data Collection Process

  • Data Improvement Strategies

  • Use of Safety Data in Road

    Safety Management



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