A Guide to Emergency Management at State Transportation Agencies (2020) / Chapter Skim
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Pages 16-24
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16 An all-hazards approach to emergency management includes a broad range of incidents and events that have potential to impact transportation agencies and transportation systems operations. States across the nation face different types of hazards.
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Nature and Degree of Hazards and Threats 17 Natural Hazards Natural hazards span the range of predictability, with extreme weather events increasing in frequency (e.g., Superstorm Sandy, extensive Midwest flooding, powerful hurricanes, extensive wildfires)
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18 A Guide to Emergency Management at State Transportation Agencies Inconsistencies and lapses in the design, construction, and maintenance of an asset may coincide to create the conditions for a sudden structural failure. HAZMAT may be in liquid, solid, or gaseous form.
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Nature and Degree of Hazards and Threats 19 Hazard Data Sources Information on potential hazards, including probability and possible effects, can be obtained from EMA, State Emergency Management and Civil Defense Agencies, National Weather Service (NWS) , Environmental Protection Agency (EPA)
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20 A Guide to Emergency Management at State Transportation Agencies of likelihood and consequence but does not mandate other parameters, such as return period, leaving these decisions to the state geologist. Agencies that have slope inventories may be able to compute the total centerline length of road affected by unstable slopes.
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Nature and Degree of Hazards and Threats 21 Flood. FEMA maintains the Digital Flood Insurance Rate Map Database, which depicts flood risk information and supporting data used to develop the risk data.
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22 A Guide to Emergency Management at State Transportation Agencies FEMA Flood Map Service Center (MSC)
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Nature and Degree of Hazards and Threats 23 Risk Assessment and Threat and Hazard Identification and Risk Assessment (THIRA) The latest Strategic National Risk Assessment stated that the nation continues to face a wide range of threats and hazards including the following: • Natural hazards, including hurricanes, earthquakes, tornadoes, droughts, wildfires, winter storms, and floods, affect various parts of the nation; climate change may increase the severity of their impacts.
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24 A Guide to Emergency Management at State Transportation Agencies The THIRA Process consists of the following: 1. Identify Threats and Hazards of Concern.
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