Data associated with characterizing the exposure of the U.S. road network to areas susceptible to landslides, 2023

Data supporting the journal article titled “Variations in road exposure and traffic volumes in the United States in areas susceptible to landslides.” There have been many efforts in the United States (U.S.) to identify landslide threats for specific roads, but no efforts to examine the entire national road system. We use geospatial tools to estimate the length and percentage of total length of roads in landslide-susceptible areas and differentiate results by road type, jurisdiction, and susceptibility level. We summarize traffic-volume counts in landslide-susceptible areas in terms of annual and maximum hourly counts using geospatial zones based on the concept of stopping-sight distances.