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                Ohio Develops Centralized Data Source for All SHSP Partners
**Publication Year:** 
            2010
    
        Original publication: SHSP Implementation Process Model, Supplement Number 1 – Case Studies; FHWA-SA-10-025; 2010 (PDF, 1MB)

			Key Accomplishments

			Developed a centralized data source for all SHSP partners resulting in more consistent safety analysis Statewide.
				Established common data analysis processes enabling problem identification, tracking, and evaluation to be conducted in a consistent manner across agencies.
				Improved local agency and MPO safety analysis capabilities by providing user-friendly analysis tools.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 by multiple agencies is inconsistent, tracking, evaluation, and problem identification are difficult.

			To improve data consistency, Ohio created the Crash Statistics System (CSS), a single Statewide crash database for use by all agencies and the public. The CSS is managed by the Department of Public Safety (DPS), which is also responsible for license, citation, and vehicle registration data. The Ohio Enhanced Crash Location and Identification System (OECLIS), managed by the Ohio Department of Transportation (ODOT), uses the latest three years of crash data, which are merged with data on roadway characteristics and then analyzed to identify high-crash intersections and corridors. These databases support development of SHSP strategies and action plans.

			A second element developed by ODOT, the GIS Crash Analysis Tool (GCAT), is an on-line GIS Web tool designed to enhance safety analysis capabilities. It allows users to extract crash data spatially and to create tables, charts, graphs, and collision diagrams based on the crash data selected from the map. The Crash Analysis Module (CAM) Tool is an Excel template that was built for the GCAT and helps facilitate common data analyses and queries, including crashes by day-of-week, light condition, weather condition, severity, and road condition.

			State and local law enforcement agencies provide funds for data collection. ODOT staff cleans and maintains the data and provides data analysis support for metropolitan planning organizations (MPO) and local agencies. Ohio used §408 funds to develop the CSS portal.

			Results

			Ohio’s centralized process for safety data distribution has resulted in improved consistency in data analysis among all SHSP partners. Problem identification, tracking, and evaluation of safety progress have improved. The CSS, GCAT, and CAM Tool have increased local government and MPO access to crash data and enabled agencies to easily perform basic crash analyses.

			Contact:
			Jonathan Hughes, P.E.
			Office of Systems Planning and Program Management
			Ohio DOT
			614-466-4019jonathan.hughes@dot.state.oh.us U.S. DEPARTMENT OF TRANSPORTATION

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