Definition
National Bridge Inventory. FHWA bridge inventory data overlaid in the Helm to view bridges in context of surrounding road network conditions.
In context
The NBI overlay shows bridges in the context of the road network feeding them.
Federal Data
NBI
Related Terms in Federal Data
Browse the full glossary →Federal Data
FARS
Fatality Analysis Reporting System. FHWA/NHTSA crash records overlaid in the Helm for safety corridor analysis alongside…Federal Data
HPMS
Highway Performance Monitoring System. Federal dataset providing pavement conditions (IRI), traffic volume (AADT), and f…Platform
Helm
The Road Triage web-based mapping and analytics dashboard. Features 11+ map visualization types, AI-powered queries, cha…Federal Data
ACS
American Community Survey. The U.S. Census Bureau survey providing population, income, and commuting data. Helm uses ACS…Federal Data
DOT
Department of Transportation. The federal (USDOT) or state agency responsible for transportation infrastructure. Helm ov…Federal Data