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Early Warning System


This market package represents the National Advisory Warning System and other emergency centers monitoring and detecting potential, looming, and actual disasters including natural disasters (hurricanes, earthquakes, floods, winter storms, tsunamis, etc.) and technological and man-made disasters (hazardous materials incidents, nuclear power plant accidents, and acts of terrorism including nuclear, chemical, biological, and radiological weapons attacks). The market package also notifies all responding agencies of detected emergencies along with traffic and transit agencies that are in the NRO area (e.g., VDOT NRO MPSTOC -TOC, VDOT NRO MPSTOC - Signal Center, NRO Local TOCs and NRO Local Transit Centers, and others).

Market Package Diagram Part 1 2

Elements Associated with Early Warning System



Disclaimer: This site is designed for transportation and other public agencies in the Northern Virginia region,
not for the general public's use. The official VDOT web site is located at