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Published byHope Hutchinson Modified over 9 years ago
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Using Data To Drive Down Fatalities Roseanne Nance Bureau of Safety Engineering Illinois Department of Transportation
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Inconceivable Undertaking
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Valuable Timely Accessible
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Light at the end of the Data Tunnel Valuable Improved Available Data Located Fatal and A Local System Crashes Develop Local System Geometric Information Timeliness Entered and Located 30 – 60 days Availability Safety Data Mart External Web Portal 5% Reports and Maps Shared
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But It’s Mine!
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New and Improved Tools
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Data Driven Fatal Crashes A-Inj Crashes Safety Performance Functions 5% - 100% Report Integrated Review of HSIP Projects Benefit-Cost Tool Highway Safety Manual Safety Analyst, IHSDM
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Systematic and Site Improvements -Interstate Shoulder Milled Rumble Strips. -Interstate bridge pier and sign foundation protection. -Upgrade Guardrail to a higher much better crash performing system. -Upgrade non-crashworthy guardrail end sections with approved crash tested end sections. -Cable median -Curve improvements including chevrons and rumblestrips. -Rural highway shoulder paving with rumblestrips at strategic locations. -LED signal upgrades -Signal head per lane with back plates-Left. Turn flashing yellow -Yield bars at rural 4 lane highways -Pedestrian countdown signals.
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Results
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Lowest fatality numbers since 1921 Number of Fatal Crashes in Illinois by Year
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Note: Information Systems for Decision Making emphasis area is not listed as it affects all fatalities “Alcohol Related” represents a subset of the emphasis area “Alcohol and Other Impaired Driving” NHTSA number of roadway departure fatalities could not be verified, 2008 numbers are lower than Illinois State Crash database
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Roseanne Nance Illinois Department of Transportation Bureau of Safety Engineering 2300 S. Dirksen Parkway, Rm 323 Springfield, IL 62764 217-558-6112 Roseanne.Nance@illinois.gov
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