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Roadway Departure Safety Implementation PlansKentucky Implements Roadway Departure Safety Plan with Rumble Stripes and Friction Treatments March 2011 FHWA-SA-11-20
PDF Version [361 KB] Roadway departure crashes account for the majority of highway fatalities in the United States. A roadway departure crash is defined as a non-intersection crash which occurs after a vehicle crosses an edge line or a center line, or otherwise leaves the traveled way. The Problem in KentuckyIn Kentucky, roadway departure crashes account for more than 60 percent of all traffic-related deaths. Roadway departure crashes resulted in an average of 628 fatalities annually from 2005 to 2009.
Customized SolutionFHWA first provided a technical training session to the Kentucky Transportation Cabinet (KYTC) and other traffic safety stakeholders. The training included a discussion of recommended roadway departure countermeasures. The second event was an Implementation Plan Workshop tailored to the roadway departure safety needs of Kentucky. FHWA developed a customized data analysis package and identified a set of costeffective countermeasures, deployment levels, and funding needed to achieve a 15 percent reduction in roadway departure fatalities. When implemented, this will help Kentucky save up to 65 lives per year. The Implementation Plan developed for KYTC included traditional treatments at high crash locations, systematic treatments on corridors with a moderate level of crashes, and comprehensive safety solutions incorporating law enforcement and education to reduce the number and severity of roadway departure crashes. Kentucky Roadway Departure Fatalities Kentucky's Key First StepsKentucky used the customized Implementation Plan and local knowledge of safety problems and effective countermeasures to begin implementing solutions to reduce roadway departure crashes. Center Line Rumble Strips – RetrofitApproximately 38 miles of center line rumble strips have been installed on existing two-lane roads with 11 ft. or wider lanes. KYTC plans to install more than 100 additional miles of retrofit center line rumble strips in 2011. KYTC is installing hundreds of miles of rumble strips/stripes in conjunction with its pavement resurfacing program. Rumble Strips/Stripes on Resurfacing ProjectsKentucky has incorporated rumble strips and rumble stripes into its pavement resurfacing projects, including:
Kentucky is taking advantage of the low cost of rumble strips, especially as add-ons to existing surface overlay projects. Costs to date have been much lower than originally estimated, allowing KYTC to plan for more than 200 additional miles of rumble strips and rumble stripes on resurfacing projects in 2011. KYTC installed high friction surface treatments at locations with a
history of wet roadway departure crashes. High Friction Surface TreatmentsIncreasing friction on roadways with a history of wet weather crashes has been proven to yield significant safety benefits. Kentucky has selected 32 sites to apply high friction surface treatments. For More InformationJarrod Stanley Tracy Lovell Joe Cheung |
Program ContactBrian Fouch What’s NewGuidance memorandum on the Roadside Design Guide - 4th Edition NEW! Memorandum - Roadside Safety Hardware-Federal-Aid Reimbursement Eligibility Process NEW! 2009 MUTCD Compliance Dates Revised NEW! FHWA Technical Advisory T 5040.40: Center Line Rumble Strips NEW! FHWA Memo: Technical Advisories for Rumble Strips NEW! Roadway Departure Safety Implementation Plans Roadway Departure Countermeasures Roadside Design: Steel Strong Post W-beam. A guidance memo was issued on May 17, 2010 on the height of guardrail for new installations. Guidance regarding existing guardrail will be developed in the next several months, in consultation with AASHTO’s Technical Committee on Roadside Safety. Pavement Marking Retroreflectivity Notice of Proposed Rulemaking [HTML, PDF] MUTCD Text of the Proposed Pavement Marking Retroreflectivity Standard Summary of the MUTCD Pavement Marking Retroreflectivity Standard Revised Assessment of Economic Impacts of Pavement Marking Retroreflectivity Publications |
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