U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
The Federal Highway Administration (FHWA) provided technical assistance to Ohio in the summer of 2010 to develop an Intersection Safety Implementation Plan (ISIP). FHWA held a workshop, provided a data package, and identified a list of candidate intersections by countermeasure type. The State released the final ISIP in July 2010.
The Ohio Department of Transportation (ODOT) central office sent the complete list of State, rural, stop-controlled intersections identified in the ISIP – 1,004 intersections in total – to district personnel for review for potential sign and pavement marking enhancements. ODOT used funding from Ohio’s Highway Safety Improvement Program to purchase the sign and marking materials and provided a slide presentation to the district offices that served to assist the districts in implementing the rural intersection sign and marking improvements. ODOT also provided a standardized sign order form for the districts to fill out. The ODOT sign shop produced the signs, and the district maintenance forces installed the signs. All 12 districts in Ohio completed the effort in 2013 and 2014.
ODOT has involved local agencies through the Local Technical Assistance Program, which started a township signage program in 2013. There are over 1,100 townships in the State of Ohio. Each year, 100 townships are eligible for up to $50,000 for safety-related signs, which typically comprise intersection and curve signage. The selection process uses total crash counts to determine the 100 townships chosen. The next 100 townships on the list are targeted the following year, and the process continues, deploying countermeasures where they are needed most. This method prioritizes the townships with the most crashes with the expectation that the improvements will prevent more crashes.
The following are the funding amounts for the ISIP signage upgrades:
The ISIP identified several countermeasures that could be applied on a systemic basis, including the following:
Minor signal upgrades consisting of converting any remaining signal heads to 12-inch LEDs and adding reflectorized backplates as recommended in the plan are ongoing, and 35 roadway corridors have had clearance intervals retimed in accordance with the ITE clearance interval timing formula.
ODOT has monitored statewide intersection crash data but has not conducted site-specific analyses for the locations that may have been treated based on the ISIP. ODOT found that the five-year rolling averages from 2003 to 2013 have experienced a 23-percent reduction in fatalities and a 14-percent reduction in serious injuries at intersections. To quantify the effectiveness of its ISIP, ODOT would have to perform an analysis of the exact locations the State improved through the ISIP, but it expects fatalities and injuries to be consistent with the statewide trends.
The goals of Ohio’s Strategic Highway Safety Plan are to reduce the number of intersection fatalities from 266 to 245 between 2013 and 2017, and to reduce the number of serious injuries related to intersection crashes from 3,687 to 3,401 between 2013 and 2017. To achieve this goal, ODOT will use approximately $38 million beyond currently-programmed intersection safety projects over a five-year period – or approximately $7.5 million annually.
Highway Safety Program – Safety Engineer
Ohio Department of Transportation
Federal Highway Administration – Ohio Division