Final Report

16450352016PDFTech ReportFHWA-JPO-16-400DTFH6114H00002Road weather information systemsDriver information systemsVehicle to roadside communicationsMobile communication systemsIntelligent vehiclesRoad-weatherDynamic Road Surface MappingUnited StatesUnited States. Department of Transportation. Intelligent Transportation Systems Joint Program OfficeAbuchaar, O.Buchard, M.Casadei, S.Goudy, R.Ibrahim, U.Kailas, A.Kumar, V.Nakajima, H.Tafish, HasanYamamoto, M.Alden, Andrew S.Druta, CristianDeering, R.Crash Avoidance Metrics PartnershipUnited States. Department of Transportation. Intelligent Transportation Systems Joint Program OfficeUnited States. Federal Highway AdministrationFederal Highway AdministrationThis report provides insight into how existing vehicle sensor data (e.g., location, heading, road surface and atmospheric conditions) can be utilized by the CVI environment to support transportation safety through road-weather applications. Of special interest are those road-weather infrastructure applications that compile relevant information for key potential end-users. A set of road-weather related vehicle variables was identified using the SAE J2735-2015 Basic Safety Message (BSM) as a reference for parameter definition. The availability of these variables to support road-weather applications was analyzed for a set of representative high volume production vehicles. Subsequently, a Dynamic Road Surface Mapping (DSRM) system concept was proposed that would crowd source vehicle-based assessment(s) of road surface conditions using wireless communications for aggregation and distribution locally to improve vehicle based safety application performance and to back-end infrastructure to support road-weather applications