Speed Management Case Study: Georgia Department of Transportation Setting Speed Limits with Help from USLIMITS2

Federal Highway Administration2016PDFBriefUnited States. Federal Highway Administration. Office of SafetyUnited States. Federal Highway Administration. Office of SafetyUnited StatesSpeed controlSpeed limitsTraffic safetyFHWA-SA-16-078USLIMITS2 is a web-based tool designed to help practitioners set reasonable, safe, and consistent speed limits for specific segments of roads. It is applicable to all types of facilities, from rural local roads and residential streets to urban freeways. The tool provides a suggested speed limit value based on 50th and 85th percentile speeds, roadway characteristics, and (optional) crash data. Since USLIMITS2 software became available in 2007, GDOT estimates it has used the tool to complement the State\u2019s engineering speed studies on nearly 500 speed limits statewide.95