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Roadway Safety Data Program

Data Collection

Identifying, collecting, and integrating different, useful data sets are integral to developing a robust data program and fundamental to making informed decisions about safety strategies and investments. This section offers information about what safety data to collect and how to use them to strengthen the Highway Safety Improvement Program and other highway investments. Learn how safety data support roadway safety considerations throughout program planning, project development, and operations decision making.

FHWA Guidance
MAP-21 Guidance on State Safety Data Systems MAP-21 Guidance on State Safety Data Systems This guidance clarifies (1) State safety data capabilities to satisfy the “Moving Ahead for Progress in the 21st Century Act” (MAP-21) (P.L. 112-141), and (2) the safety data collection, integration, improvement, and analysis activities eligible for HSIP funding.
MIRE FDE Cost Benefit Estimation - Report No FHWA-SA-13-018 MIRE FDE Cost Benefit Estimation - Report No FHWA-SA-13-018 This report estimates the potential cost to States in developing a statewide Linear Referencing System and collecting the Minimum Inventory of Roadway Elements and Fundamental Data Elements on all public roadways. The expected benefit is that collecting additional roadway and traffic data and integrating those data into the safety analysis process will improve an agency's ability to locate problem areas and apply appropriate countermeasures, hence improving safety.

Crash Data Improvement Program (CDIP) Final Report Crash Data Improvement Program (CDIP) Final Report The Crash Data Improvement Program (CDIP) was initiated by the FHWA to provide States with a means to measure the quality of the information within their crash database and to provide recommendations for improvement. It provided States with measures to address the six data quality attributes of timeliness, accuracy, completeness, uniformity/consistency, integration, and accessibility

This report ten States participated in the program. It presents the basic findings from those States along with a summary of the recommendations that the CDIP made to those States for improving their crash data systems.
Roadway Data Imprvement Program (RDIP) Roadway Data Imprvement Program (RDIP) The purpose of the Roadway Data Improvement Program (RDIP) is to help transportation agencies improve the quality of their roadway data to support their safety and other improvement initiatives.

The intent of the RDIP Supplemental Information Resource is to provide an overview of data collection practices, transportation planning and coordination, data management, and using roadway data for safety. The information provided in this Supplemental Information Resource incorporates information provided by a Technical Working Group on roadway data collection, analysis, management, and integration.
Model Inventory of Roadway Elements (MIRE) Report, Version 1.0 Model Inventory of Roadway Elements (MIRE) Report, Version 1.0 The MIRE is a listing of roadway and traffic data elements needed to support advanced safety analyses.
MIRE Data Collection Guidebook MIRE Data Collection Guidebook The MIRE Data Collection Guidebook builds upon the MIRE, Version 1.0 document to identify issues State's should be cognizant of when collecting information on specific MIRE elements. The Guidebook discusses methods of collecting the MIRE elements and potential limitations of those methods. It provides data managers and collectors with information regarding techniques for collecting MIRE data elements that potentially will allow them to collect the elements more efficiently.
Safety Data Technical Assistance Safety Data Technical Assistance The Office of Safety provides a range of technical assistance on safety data issue through its roadway safety technical assistance program.
MIRE Fundamental Data Elements Illustrations
Safety Data Dashboards Safety Data Dashboards These customizable dashboards display graphical depictions of crash data characteristics on a national, regional, and state level.

Perspectives for the Development of the Roadway Safety Data Program Perspectives for the Development of the Roadway Safety Data Program This document follows the state data capability assessment process and summarizes the project team's and State participants' perspectives, organized into four areas: data collection, data analysis, data management, and data expansion. For each goal area and proposed action item the document includes discussion on motivation, priority, delivery methods, and recommendations.
MIRE Management Information System Lead Agency Data Collection Report MIRE Management Information System Lead Agency Data Collection Report The Lead Agency Data Collection Report presents the findings from an effort to assist two States to expand their roadway inventory data collection to include MIRE intersection data elements. The development of this information into their databases was intended to facilitate the use of this information to use more advanced analytic methods. The report documents two different methods of data extraction used by the two pilot states. The implications from this effort may lead to more effective and efficient methods of increasing the collection and use of MIRE by State and local transportation agencies. Further, these results may better assist States in complying with the guidance and requirements of the Moving Ahead for Progress in the 21st Century (MAP-21) legislation.
MIRE Element Collection Mechanisms and Gap Analysis MIRE Element Collection Mechanisms and Gap Analysis The Element Collection Mechanisms and Gap Analysis Report presents the findings of an effort to 1) explore existing and emerging data collection technologies, and 2) to narrow the gaps between the elements in the MIRE listing and the current data available from transportation agencies' inventories and supplemental databases. This report provides data managers and data collectors with potential techniques for advancing future data collection of roadway and traffic inventory data.
United States Roadway Safety Data Capabilities Assessment United States Roadway Safety Data Capabilities Assessment FHWA Office of Safety initiated the Roadway Safety Data Capability Assessment to better understand the current status of State safety data systems.
Development of a Structure for a MIRE Management Information System Development of a Structure for a MIRE Management Information System The Structure Report identifies issues States should be cognizant of when collecting, correcting, and maintaining information for a safety management system. The report presents a conceptual model that identifies the business functions a state is likely to need from a safety management system. This document provides data managers with information and issues they should address in establishing or improving an integrated safety data file structure to enhance the safety performance of the state's roadways.
MIRE MIS - Feasibility of a Model Inventory of Roadway Elements Management Information System MIRE MIS - Feasibility of a Model Inventory of Roadway Elements Management Information System The Feasibility Report serves as a summary document for the activities conducted as part of the MIRE MIS program. This report provides information about each of the component projects and the findings and implications of the effort.
Exploration of the Application of Collective Information to Transportation Data for Safety White Paper Exploration of the Application of Collective Information to Transportation Data for Safety White Paper The White Paper explores the technique of collective information as a means of gathering data needed for transportation safety. Collective information is a process of assembling or gathering information on a subject through the use of a large, disperse, and potentially uncontrolled group of individuals. The White Paper also examines current uses of collective information gathering and potential next steps for this process to support the collection of transportation data.
Integrating MIRE: Better Data for Better Decisions to Save Lives Integrating MIRE: Better Data for Better Decisions to Save Lives The Integrating MIRE Brochure highlights the major findings from the MIRE MIS program. It includes information about data collection, integration and management, and measuring data quality.