New York State Department of Transportation Applies Systemic Planning Process to Lane Departure Crashes on State Highway System

2013Scurry, KarenPDFTech ReportFHWA-SA-13-025Strategic planningCrashesTraffic safetyCountermeasuresSystemic safety planningSevere crashesRisk factorsCrash overrepresentationSafety improvementsCountermeasuresUnited StatesUnited States. Federal Highway Administration. Office of SafetyStorm, RichardBennett, Jacqueline DowdsWemple, BethUnited States. Federal Highway Administration. Office of SafetyCH2M Hill, inc.Cambridge Systematics, Inc.Scurry, KarenFederal Highway AdministrationThis case study demonstrates the application of the Systemic Safety Project Selection Tool by the New York State Department of Transportation. The NYSDOT used the Tool to determine that the focus of their systemic safety planning efforts should be severe lane departure crashes that occur on rural, undivided, two-lane highways with posted speeds of 55 miles per hour. Three characteristics identified as overrepresented by this analysis process were selected as risk factors: traffic volume between 3,000 and 5,999 annual average daily traffic, curve radii between 100 and 300 feet, and shoulder width between 1 and 3 feet. NYSDOT tallied the total mileage of the segments that had one risk factor present and the mileage for those that had multiple risk factors present for each of the 11 NYSDOT regions.93