Planning Safe Evacuation Routes

Every household needs at least three planned evacuation routes. Learn how to identify chokepoints, use offline maps, communicate the plan, and adapt when conditions change.

routesevacuationplanningsafetynavigation

Planning Safe Evacuation Routes

Most people have a vague idea of how they would evacuate — drive to a family member's house, take the main road out of town. This is not a plan. In a real emergency, the main road is often gridlocked, bridges are closed, and the family member's house is in the same affected zone.

A real evacuation route plan has three routes to at least two destinations, accounting for specific threats in your area, with the routes printed, practiced, and communicated to all household members before any emergency occurs.

⚠️ The time to plan evacuation routes is now, not when the emergency alert is issued. People who improvise routes during an active emergency take longer to leave, make more mistakes, and face worse conditions than those who execute a pre-made plan.


Why Three Routes Minimum

A single route is a single point of failure. In a real evacuation:

  • The primary road may be gridlocked with thousands of simultaneous evacuees
  • Bridges, tunnels, and underpasses may be flooded, damaged, or closed by authorities
  • Emergency services may redirect traffic away from your planned route
  • Wildfires can spread across roads faster than you can drive to the next junction
  • Civil unrest can make certain routes impassable or dangerous

Three planned routes means you have a primary and two backups. If your primary route is blocked, you do not stop to think — you execute backup route one.


Types of Routes

Plan routes that use different infrastructure types:

Route TypeAdvantagesVulnerabilities
Primary route (main road)Fast in normal conditionsGridlocks under mass evacuation
Secondary route (local roads)Less traffic; avoids motorway gridlockLonger distance; less predictable surface
Alternative direction routeDifferent destination; avoids shared chokepointsMay require different destination or longer journey

Your three routes should not all share the same bridge, tunnel, or bottleneck. The point is to diversify infrastructure dependency.


Step-by-Step Route Planning Process

Step 1: Identify your destinations

Before you plan routes, you need destinations. Plan for at least two:

  • Primary destination: Family or friends outside your risk zone (minimum 50km away from likely disaster area), or a pre-booked hotel if no family is available
  • Secondary destination: A different direction — for when the primary destination is in the same affected zone or unreachable
  • Emergency fallback: The nearest official emergency shelter (find this on your local government emergency management website)

Contact your destinations. Confirm they know you may be coming. Know their address and how to reach them without GPS.

Step 2: Map your area

Get a current street map and regional road map of your area. On the street map:

  1. Mark your home
  2. Mark your primary and secondary destinations
  3. Mark the locations of known chokepoints (see below)
  4. Mark emergency services: hospitals, police stations, fire stations along likely routes
  5. Mark water sources if evacuating on foot

Step 3: Identify chokepoints

Chokepoints are locations where evacuation traffic will inevitably concentrate and slow:

Common chokepoints:

  • Single-route bridges (crossing rivers, harbours, canyons)
  • Tunnels (single-direction movement; prone to accidents causing full closure)
  • Motorway on-ramps and merges
  • Railway crossings and level crossings
  • Town centre main streets
  • Narrow rural roads that become the only option after others close
  • Flood-prone underpasses and low roads

Action: For each chokepoint on a route, identify an alternative that bypasses it. If no bypass exists, that chokepoint is a critical risk in your plan — adjust accordingly.

Step 4: Plan each route

For each of your three routes:

  1. Write out the route as a sequence of turns with street names
  2. Note key landmarks at each decision point (junction: turn left at the petrol station; bridge: cross here, then right)
  3. Note the distance and estimated travel time under normal and congested conditions
  4. Note any weather-dependent risks (road floods in heavy rain; exposed ridge road dangerous in high wind)
  5. Mark waypoints where you would stop to assess conditions and communicate

Step 5: Identify waypoints and rest stops

For longer evacuations (over 2 hours travel):

  • Mark fuel stations along each route (note their approximate capacity — smaller rural stations run dry first)
  • Mark rest stop options (service areas, parks, safe roadside stopping points)
  • If travelling with children or elderly: mark medical facilities along each route

How Disasters Affect Routes

Different emergencies make different routes impassable:

Disaster TypeRoutes Most AffectedPlanning Response
FloodLow roads, bridges, underpassesKnow elevation of your routes; plan for high-ground alternatives
WildfireRoutes toward the fire; roads with fuel on both sidesAlways route away from the fire direction; have a crosswind route
HurricaneCoastal roads, flood-prone areas, exposed elevated roadsUse inland routes; avoid storm surge zones
EarthquakeBridge damage widespread; road surface fractures commonHave multiple bridge crossing options; know which are newer builds
Civil unrestMain urban roads, government building areas, major intersectionsUse residential back roads; avoid crowds; travel in daylight
Nuclear incidentThe downwind direction from the release pointWind direction determines safe route — have routes in all four quadrants

For floods specifically: Do not assume a road that is passable at the start of your evacuation will remain passable throughout your journey. Rising water can cut routes mid-journey. Know alternative elevations along your route.


Offline Maps

Do not rely on Google Maps or Apple Maps during an emergency. Mobile networks become overloaded in minutes after a major incident and may fail completely. GPS may still work (satellites are still there), but map tiles require a data connection if not cached.

Offline map preparation:

  1. Download offline maps for your area in your preferred mapping app (Google Maps, Apple Maps, and Maps.me all support offline download)
  2. Download a 50–100km radius around your home
  3. Test the offline maps while in aeroplane mode before an emergency
  4. Print physical maps as an additional backup — apps can fail for reasons beyond connectivity (screen damage, battery death, app crashes)

Dedicated offline navigation apps:

  • Maps.me (completely offline, includes detailed global maps)
  • OsmAnd (offline, OpenStreetMap-based, highly detailed)
  • Gaia GPS (excellent for rural and topographic use)

Communicating the Plan

A plan that only one household member knows is not a household plan.

All household members old enough to understand should know:

  1. Where the go-bags are and how to use them
  2. The meeting point if separated during the emergency
  3. The primary evacuation destination (name and address)
  4. The primary route (at least the first major decision — "take the northern highway, then head west on Route 7")
  5. The name and phone number of the person they should call if they cannot reach family

Meeting points: Designate two meeting points:

  • Near home: A specific neighbour's house, a street corner, or a community building — for emergencies where you cannot re-enter your home but are still in the local area
  • Outside the area: A specific location (car park, landmark) at your primary destination for reunification after evacuation

Written copy: Write the key elements of your plan on a card. Put one copy in each go-bag, one in your vehicle, and keep one in a different location (workplace drawer, parent's house). Do not rely on memory alone.


Reassessing Routes During an Event

Even with a perfect plan, you may need to adapt in real time:

  1. Monitor official sources before departing: Emergency radio, official government social media. Know which routes are officially closed before you commit.
  2. If your primary route is blocked: Do not u-turn in traffic — where possible, anticipate and turn onto your backup route before you reach the blockage.
  3. Follow official evacuation signage. Emergency services often place directional signs on approved routes. These are current and account for known hazards.
  4. Trust your plan over in-the-moment impulses. The plan was made with a clear head. Improvisation under stress often leads to worse outcomes.
  5. Communicate your route change. Tell your destination and other household members which route you are now taking.

Family Meeting Points and Communication

If household members are in different locations when an emergency occurs:

  1. Pre-agree who goes where. Who collects the children from school? Who drives to what location? Who is responsible for elderly relatives?
  2. Establish a check-in protocol. "Text or call every hour; if no response within 2 hours, assume I am at [location]."
  3. Designate an out-of-area contact. Someone not in the affected zone who both parties can call. Local phone lines may be overloaded, but a call to a distant contact often gets through.
  4. Meet at the primary destination if separated. Do not diverge from the plan trying to find each other — both parties head to the agreed destination.

Quick Reference

SituationAction
Only one route plannedImmediately plan two more — different directions, different infrastructure
Primary route confirmed gridlockedExecute backup route 1 without delay
Route flooded mid-journeyTurn around immediately — do not try to cross; use backup route
No offline maps downloadedDownload now before an emergency; maps.me is free and comprehensive
Household member at work when evacuation orderedPre-agreed meeting point and protocol; out-of-area contact as coordinator
Child at school during evacuationPre-agreed school pickup plan; confirm with school what their emergency protocol is
Destination in the same affected zoneUse secondary destination — always plan two separate destinations
Contradictory route information from multiple sourcesFollow official emergency management guidance; ignore social media rumours
Night evacuation requiredExtra caution; reduce speed; use headlights on full; stick to known routes
Unexpected military or police checkpointStop calmly; follow instructions; ask which routes are open before proceeding
offline_bolt

Read offline in the app

Take Planning Safe Evacuation Routes with you — no internet needed when it matters most.

downloadGet on Google Play