Fixed automated spray technology.

795362468Final report.PDFTech Report2001-056SprayersCorrosion testsChemical testsDeicingSnow and ice controlDeicing chemicalsBridge decksRoad weather information systemsPennsylvaniaPennsylvania. Dept. of TransportationUzokwe, AlfredLittle, SherriPennsylvania. Dept. of Transportation. Bureau of Maintenance and OperationsNTL-ENERGY AND ENVIRONMENT-Environment ImpactsNTL-INTELLIGENT TRANSPORTATION SYSTEMS-Road Weather ManagementNTL-SAFETY AND SECURITY-Highway SafetyNTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and PerformanceUS Transportation CollectionThis research project evaluated the construction and performance of Boschung\ue2\u20ac\u2122s Fixed AutomatedSpray Technology (FAST) system. The FAST system automatically sprays de-icing material onthe bridge when icing conditions are about to occur. The FAST system includes the installation ofa Road Weather Information System (RWIS) to monitor the roadway and weather conditions. Thedata collected from the RWIS determines if the de-icing material should be released on the bridgedeck. The roadway sensors are programmed to submit to the RWIS a temperature reading up tothree degrees less than the actual temperature, so the de-icing material is dispensed in anticipationof icy conditions. The FAST system provides a benefit to the traveling public, since de-icingmaterials are deployed at the appropriate time to prevent hazardous road conditions. TheDepartment would receive a benefit with de-icing material being deployed only when required,instead of pre-treating in anticipation of freezing conditions