Road Weather Management Portal

Road weather management (RWM) looks to better understand the safety and mobility impacts of weather on roadways and promote tools to mitigate those impacts. Road weather events can reduce capacity by lane submersion (flooding) or obstruction (snow, debris), closures due to high winds, and a myriad of other conditions. The corresponding reduction in speeds also decreases throughput on arterials and affects signal capacity. Adverse weather also typically increases agency operating and maintenance costs. 

The overall goal of RWM is to obtain and convey timely, accurate, and relevant information about weather related impacts as well as mitigate the problem, if possible. 

This portal, developed by the FHWA RWM Program, collects resources and information about the practice of road weather management. Please review the portal menu to access this information. 

Be sure to also register for the 2025 Road Weather Spotlight webinar series.