This layer depicts hurricane evacuation routes that originated from a hurricane evacuation map by the City of Houston Office of Emergency Management. Routes are stored as arcs. Last updated in March 2025.

This dataset shows hurricane evacuation zones used for communicating evacuation orders to the public. These zones indicate the areas at most risk of flooding due to storm surge during a hurricane. Zone A is the most at risk, followed by zone B, and then zone C.

This group of layers was developed by the Balmoral Group and contains the transportation and evacuation route layers as defined in 380.093(2)(a) Florida Statutes. The layers were sourced from various public State of Florida and Federal Sources. Transportation and evacuation routes include airports, bridges, bus terminals, ports, major roadways, marinas, rail facilities, and railroad bridges. Typically, the data are utilized in various vulnerability assessments in evaluating the exposure and sensitivity from combined events of sea level rise, precipitation, major storms, and flooding. The data will also be used in efforts to complete a comprehensive statewide assessment for the State of Florida.

Regional Evacuation Routes. This dataset contains contains points representing locations of Regional Evacuation Routes, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies. Files provided by the District Department of Transportation contained DC, beltway, and regional evacuation routes. OCTO merged these layers together to form one layer.

The Evacuation Route Study Map contains the primary evacuation routes throughout the Commonwealth of Virginia. These routes were identified by the Virginia Department of Transportation and the Virginia Department of Emergency Mangement. This map was developed to meet the requirements set forth in the 2022 Code of Virginia; Title 33.2 - Highways and Other Surface Transportation Systems; Chapter 2 - Transportation Entities § 33.2-275.1. Primary evacuation routes; public information

Updated Frequency: 10 minutes

Status	Color Hex Value	Color Name	Color	Description
NORMAL	#FFFFFF	White		No active public safety incidents.
EVACUATION WARNING	#E5C447	Yellow		Potential threat to life and/or property. Those who require additional time to evacuate, and those with pets and livestock should leave now.
EVACUATION ORDER	#D37072	Red		Immediate threat to life. This is a lawful order to leave now. The area is lawfully closed to public access.

Inventory of Counties whose Evacuation Order information is publicly shared by Cal OES through the California Active Evacuation Zones feature service.

The travel time map was generated using the Pedestrian Evacuation Analyst model from the USGS (https://geography.wr.usgs.gov/science/vulnerability/tools.html). The travel time analysis uses ESRI's Path Distance tool to find the shortest distance across a cost surface from any point in the hazard zone to a safe zone. This cost analysis considers the direction of movement and assigns a higher cost to steeper slopes, based on a table contained within the model. The analysis also adds in the energy costs of crossing different types of land cover, assuming that less energy is expended walking along a road than walking across a sandy beach. To produce the time map, the evacuation surface output from the model is grouped into 1-minute increments for easier visualization. The times in the attribute table represent the estimated time to travel on foot to the nearest safe zone at the speed designated in the map title. The file name indicates whether the map is of the standard or extreme evacuation zone used by the City and County of Honolulu and which travel speed was used in the modelling (impaired, slow, or fast walk). These data support the following publication: Wood, N.J., Jones, J.L., Peters, J., and Richards, K., 2018, Pedestrian-evacuation modeling to reduce vehicle use for distant tsunami evacuations in Hawai'i: International Journal of Disaster Risk Reduction, v. 28, p. 271–283, https://doi.org/10.1016/j.ijdrr.2018.03.009.

Feature Service of Tsunami Evacuation Zones, island of Oahu.

A map used in Know Your Zone application to display information about evacuation zones and, optionally evacuation notice information.

Ready NC Know Your Zone Evacuation Zones for North Carolina

Public Evacuation Map

Hurricane evacuation zone map for St. Lucie Florida, containing evacuation routes, zones and storm surge zones

The Northland Tsunami Evacuation Zones 2024 have been prepared by Jose C. Borrero Ph.D. (ORCA Consulting) for Northland Regional Council, based on numerical modelling and analysis. The objective was to produce tsunami inundation and evacuation zones for the Northland region that are compliant with guidelines set forth in the document ‘Tsunami Evacuation Zones: Director’s Guidelines for Civil Defence Emergency Management Groups’ (MCDEM, 2016).

This dashboard & map contains information from sources within the county including cities / towns / agencies, external providers such as NWS, CalFire, PG&E, and intended primarily to provide situational awareness to the residents & visitors of Marin. This is especially the case during an incident or disaster. The evacuation components come from 1) the Zonehaven system which (very unfortunately) has a crippled WMS / WFS interface and 2) WebEOC, which is used for ad hoc / non-ZH evacuation zones.While this map is primarily intended to be used by the public, it may also be used by internal users. This map has a subset of what is available on the Internal SA / COP map.If you have any questions or comments, please contact Woody Baker-Cohn in Marin County OEM at GIS_OEM@MarinCounty.gov

West Sacramento's Public Evacuation Map (North)

Railway evacuation maps for diesel, methanol, and propane referenced from the North American 2016 Emergency Response Guidebook

description: Hurricane Evacuation Zones are determined by New York City Emergency Management and represent varying threat levels of coastal flooding resulting from storm surge. Hurricane evacuation zones should not be confused with flood insurance risk zones, which are designated by FEMA and available in the form of Flood Insurance Rate Maps (FIRMs).; abstract: Hurricane Evacuation Zones are determined by New York City Emergency Management and represent varying threat levels of coastal flooding resulting from storm surge. Hurricane evacuation zones should not be confused with flood insurance risk zones, which are designated by FEMA and available in the form of Flood Insurance Rate Maps (FIRMs).

The risk of natural disasters, many of which are amplified by climate change, requires the protection of emergency evacuation routes to permit evacuees safe passage. California has recognized the need through the AB 747 Planning and Zoning Law, which requires each county and city in California to update their - general plans to include safety elements from unreasonable risks associated with various hazards, specifically evacuation routes and their capacity, safety, and viability under a range of emergency scenarios. These routes must be identified in advance and maintained so they can support evacuations. Today, there is a lack of a centralized database of the identified routes or their general assessment. Consequently, this proposal responds to Caltrans’ research priority for “GIS Mapping of Emergency Evacuation Routes.†Specifically, the project objectives are: 1) create a centralized GIS database, by collecting and compiling available evacuation route GIS layers, and the safety eleme..., The project used the following public datasets: • Open Street Map. The team collected the road network arcs and nodes of the selected localities and the team will make public the graph used for each locality. • National Risk Index (NRI): The team used the NRI obtained publicly from FEMA at the census tract level. • American Community Survey (ACS): The team used ACS data to estimate the Social Vulnerability Index at the census block level. Then the author developed a measurement to estimate the road network performance risk at the node level, by estimating the Hansen accessibility index, betweenness centrality and the NRI. Create a set of CSV files with the risk for more than 450 localities in California, on around 18 natural hazards. I also have graphs of the RNP risk at the regional level showing the directionality of the risk., , # Data from: Improving public safety through spatial synthesis, mapping, modeling, and performance analysis of emergency evacuation routes in California localities

https://doi.org/10.5061/dryad.w9ghx3g0j

Description of the data and file structure

For this project’s analysis, the team obtained data from FEMA's National Risk Index, including the Social Vulnerability Index (SOVI).

To estimate SOVI, the team used data from the American Community Survey (ACS) to calculate SOVI at the census block level.

Using the graphs obtained from OpenStreetMap (OSM), the authors estimated the Hansen Accessibility Index (Ai) and the normalized betweenness centrality (BC) for each node in the graph.

The authors estimated the Road Network Performance (RNP) risk at the node level by combining NRI, Ai, and BC. They then grouped the RNP to determine the RNP risk at the regional level and generated the radial histogram. Finally, the authors calculated each ana...