What is the fine-grained topic of the following text: The project will consist of: • installing three weather stations for live monitoring and reporting of weather conditions; • installing 73 standard static signs; • installing 17 new dual, variable speed limit signs; • replacing five single variable speed limit signs; • removing 38 existing static signs; • installing nine closed-circuit cameras for live monitoring and viewing of roadway conditions; • adding other surface and subsurface conduit, and related improvements to guide the display of the variable speed limits. Only return the topic.
Roadway Improvement Project Installations and Replacements