(1) Vendor needs to provide roadway weather information system. – Roadway weather information system (RWIS) with location, surface condition, and traffic data for material choice and application rate decisions for weather events. – Implement data validation, data storage, interactive and dynamic web interface, and source data feeds to supplemental software applications providing the most use of the RWIS data. – Provide consistent and accurate data to PennDOT, the Pennsylvania Turnpike (PTC), and the federal highway administration (FHWA) via a web interface or data feed provided and managed. – Provides location, surface condition, and traffic data to support material choice and application rate decisions during weather events. – Provide web hosting and data services for the entire RWIS system immediately upon acceptance of the first site. – Troubleshooting will be required to determine and resolve communication issues between roadway, atmospheric, video camera, data logger, and the central processing unit. – Provide transportation managers and maintenance crews with a key source of weather information for guiding operations before and during adverse weather events. – Provide enhancements and fixes to the web interfaces as needed. (2) Pre–proposal meeting will be held on October 27, 2025.