Written by: Paul Foster, Founder, CEO, OnePlan
Key Takeaways for Festival Evacuation Planning
- Generic evacuation templates often fail at festivals because they ignore site geometry, real crowd flow, and exit widths that drive safety outcomes.
- Effective plans define exact triggers, name a single Event Commander with authority, and pre-select evacuation, invacuation, lockdown, or shelter-in-place for each scenario.
- Routes and assembly points need mapped layouts, separate emergency-vehicle access, and exit-width calculations based on occupant load and a 15-minute target evacuation time.
- Staff training should include reverse-flow egress drills, clear zone assignments, and tested communication scripts before gates open.
- OnePlan provides a map-based platform to design, document, and share every element of your evacuation plan; schedule a short demo to see it in action.
Step 1: Assess Your Site and Identify Risks
A thorough, site-specific risk assessment forms the base of any festival evacuation plan. In the UK, a written risk assessment is a statutory requirement under the Management of Health and Safety at Work Regulations 1999. In the US, OSHA’s 29 CFR 1910.38 sets minimum Emergency Action Plan requirements for workers, while attendee safety is governed by NFPA 101 and the International Building Code, enforced by your local Authority Having Jurisdiction (AHJ).
A site-specific assessment should cover:
- Entry and exit points: number, width, and whether they open outward with crowd flow
- Terrain: slopes, soft ground, water features, or natural bottlenecks
- Temporary structures: stages, tents, marquees, and their proximity to egress routes
- Power sources and fuel storage locations
- Weather exposure: lightning risk, wind exposure for temporary structures, heat index thresholds
- Crowd flow patterns: where attendees naturally congregate and how they move between stages
- Audience profile: families with children, elderly attendees, and people with disabilities or mobility limitations
Most crowds try to leave the way they entered, even when a nearer exit exists. Symmetric exit capacity on paper can still bottleneck at one familiar gate. Your assessment needs to reflect this behavioural pattern as well as the theoretical exit capacity.
Actionable Tip: Use a scaled, map-based tool like OnePlan for your site assessment. OnePlan’s base layer uses live satellite or street maps so you can plot hazards, measure distances between structures and exits, and see the full site from above. This approach creates a defensible, shareable record for your safety documentation. The Cheese & Chilli Festival uses OnePlan’s evacuation calculators and emergency vehicle routes as part of its risk assessments and management plans, turning a manual process into a consistent and accurate one.
Step 2: Define Evacuation Triggers and Authority
Once you understand your site’s risks, the next step is defining what will trigger an evacuation and who has the authority to call it. An evacuation plan without a clear trigger functions as a suggestion rather than a directive. Your plan should define the specific conditions that require a response and name the single person with the authority to act.
Common evacuation triggers for outdoor festivals include:
- Fire or structural failure of a temporary structure
- Severe weather: lightning within a defined radius, sustained high winds exceeding your tent and stage thresholds, or a tornado warning
- Security threats, including credible reports of a weapon or suspicious device
- Crowd density reaching unsafe levels at a specific zone
- Hazardous materials incident
- Direction from police, fire marshal, or other emergency services
The National Weather Service’s 30-30 rule states that if you count 30 seconds or less between a lightning flash and thunder, you should suspend activity and clear open areas. You then wait a full 30 minutes after the last thunder before resuming. Build this and similar thresholds directly into your plan as named triggers rather than leaving them as judgment calls under pressure.
Evacuation is one of four core responses. Invacuation, lockdown, and shelter-in-place each suit different threats, and a poor choice can increase risk. Your plan should pre-define which response applies to each scenario. In the UK, the Terrorism (Protection of Premises) Act 2025 (Martyn’s Law) requires public protection procedures covering evacuation, invacuation, lockdown, and communication for premises expecting 200 to 799 people (standard tier) and adds vulnerability-reduction duties for those expecting 800+ (enhanced tier); statutory guidance was published in April 2026, but the duties are not yet in force.
Name a single Event Commander with the authority to order an evacuation, and document at least two backups. The Event Commander makes emergency calls, including ordering an evacuation, pausing service, or coordinating directly with venue security and first responders. Police and fire marshals can also independently order an evacuation, and your plan should acknowledge this chain of authority.
Step 3: Design Your Evacuation Routes and Assembly Points
Outdoor festivals with no fixed walls or doors should treat gates, junctions, and natural boundaries as exits. Plan for dispersal in multiple directions to avoid bottlenecks, designate off-site assembly areas, and pre-decide weather-driven shelter or invacuation options.
When designing routes, apply the exit capacity calculation methodology. First, divide your occupant load by your target evacuation time to determine the required flow rate in persons per minute. Then calculate the exit width needed to achieve that flow. For outdoor open-field sites, a common planning benchmark is a maximum evacuation time of 15 minutes, and exit flow rate calculations often use approximately 60 persons per minute per 24 inches of width for level passage exits. Confirm your calculations with your local AHJ, as requirements vary by jurisdiction.
Assembly points should be:
- Large, open, and away from the main site and any potential hazards
- Sized to hold your full attendee capacity
- Accessible by emergency vehicles on a route that does not conflict with crowd egress
- Clearly signed and known to all staff before gates open
Many multi-agency failures occur when crowd egress and emergency-vehicle access share a single road. In that situation, an ambulance trying to get in competes with the crowd trying to get out. Your map should show these as separate, non-conflicting routes.
Actionable Tip: Scaled mapping becomes critical at this stage. In OnePlan, you can draw evacuation routes directly onto a live satellite map, measure their widths, and place assembly points with precise distances from the main site. OnePlan’s exit calculator, available at this link, uses exit width, crowd size, and flow rate to estimate exit capacity and provide a defensible, data-backed foundation for your plan.
See how OnePlan’s mapping tools streamline route design in a 15-minute demo.
Step 4: Assign Roles and Train Your Staff
Once your routes and assembly points are mapped, the next challenge is ensuring your team can execute them. Under NFPA 101, assembly occupancies require trained crowd managers at a ratio of approximately one per 250 occupants. Beyond that legal baseline, your plan should define clear roles for every person in your emergency chain of command.
Key roles for a festival evacuation plan include:
- Event Commander: Holds overall authority and makes the final decision to evacuate or invoke another response. Has named backups documented before the event opens.
- Security Team: Manages crowd flow, secures exits, prevents bottlenecks, and coordinates with police and fire services.
- Medical Staff: Provides first aid, manages triage, and assists attendees with disabilities or medical needs. Mass-gathering research shows approximately 0.5 to 2 medical calls per 1,000 spectators, so medical planning functions as a core operational requirement.
- Floor Wardens/Stewards: Guide attendees to the correct exits and assembly points. Work in specific zones with clear sweep responsibilities.
- Communication Officer: Makes public announcements and coordinates with emergency services on a dedicated radio channel.
- Accountability Lead: Runs headcounts at assembly points and reports missing persons to the Event Commander.
Stewards are often trained thoroughly on ingress and ticketing, but they rarely rehearse reverse-flow egress under a failure scenario. As a result, their first real evacuation can happen live with a crowd, which creates maximum risk. Training should include a physical walkthrough of the specific site, a pre-event briefing on the day, and at minimum a tabletop exercise that tests the plan before gates open.
OnePlan’s workforce planning tools let you place staff as dots on your live site map, assign each person a role, zone, and shift, and draw the routes they need to cover. Every steward and warden position appears on the same plan your security lead, medical team, and Event Commander use, which removes the version-control problems of separate spreadsheets and PDFs. The SoulFest team cut planning time by 85% by building their entire festival map, including staff placement, in OnePlan.
Step 5: Communicate the Plan and Practice
Communication during an evacuation has two parts: communication with your staff and communication with your attendees. Both parts work best when you prepare them before the event rather than improvising during an incident.
For staff, two-way radios should serve as the primary on-site communication tool for medium and large events, with one radio channel reserved for emergencies only. FEMA’s Special Events Contingency Planning guidance advises planners to avoid relying on cellular telephones for critical event communications, because networks often become congested during mass incidents.
For attendees, a multi-layered system works best. A siren alone does not support people who are deaf or hard of hearing. Pair audible alarms with visual messaging, text alerts, and on-screen announcements so that no group depends on a single communication mode.
Pre-drafted public announcement scripts for common scenarios include:
- Initial Alert: “Your attention please. We are experiencing an emergency situation. Please remain calm and listen for further instructions from event staff.”
- Evacuation Order: “Please evacuate now. Follow the directions of staff in high-visibility vests to the nearest exit and proceed to the north assembly point. Do not return to the site until further notice.”
- All-Clear: “The emergency situation has been resolved. You may return to the event area. Please follow the directions of event staff.”
The show stop functions as a deliberate control measure. Stopping the performance and raising the house lights interrupts the crowd’s focus and allows directional messaging to land. The plan should define who holds the authority to call it. Once the show stops, your announcements should use plain, specific language. Instead of “move away from the area,” say “evacuate now and proceed to the north assembly point.” FEMA’s guidance on evacuation messaging recommends that every alert answer who is sending it, what is happening, who is affected, when to act, and what to do next, using direct and specific protective actions that are hard to misinterpret.
Step 6: Plan for Accessibility and Special Assistance
Accessible evacuation planning shows whether the whole plan can work for everyone on site. Your plan should identify who may need assistance, how they can request it privately, which routes are accessible from every zone they may occupy, and who performs each handoff if the primary helper or route becomes unavailable.
Practical steps for accessible evacuation planning include:
- Identify attendees who may need assistance at registration or on arrival, and document their location and agreed method of assistance.
- Designate accessible evacuation routes that wheelchair users and those with mobility limitations can navigate.
- Position evacuation chairs at key points and train named staff in their use.
- Pair audible alarms with visual alerts, including flashing signals and on-screen text, for attendees who are deaf or hard of hearing.
- Assign a named buddy or escort for each attendee who has pre-registered an assistance need.
- Ensure medical assistance points are clearly signed and accessible from all areas of the site.
The Americans with Disabilities Act of 1990 requires that emergency egress accommodations for persons with disabilities be integrated into event venue design. The complete egress path should be navigable for wheelchair users, individuals with visual impairments, and others with differing mobility or sensory capabilities. In California, the ADA and California Building Code Chapter 11B require accessible means of egress, including accessible evacuation routes, for public buildings and facilities, which includes temporary structures used for public events. Requirements vary by region, so check your local regulations and engage your AHJ early in the planning process.
In the UK, Martyn’s Law reinforces the Equality Act requirement that emergency plans be practicable for everyone, including those with mobility, sensory, or cognitive needs.
Frequently Asked Questions
What is the first step in creating a festival evacuation plan?
The first step is a thorough, site-specific risk assessment. Before you design evacuation routes or assign roles, you need to understand the unique layout, hazards, and crowd flow patterns of your venue. This work includes walking the site, identifying every entry and exit point, measuring their widths, mapping temporary structures, and understanding how your audience moves through the space. A risk assessment conducted on a scaled map is more reliable than one done on a paper sketch or a static image, because it reflects the actual distances and spatial relationships on the ground.
How many exits should a festival have?
There is no single universal number. The required number and width of exits depend on your maximum occupant load and your target evacuation time. As noted in Step 3, planners commonly use a 15-minute benchmark for outdoor open-field sites. Your local Authority Having Jurisdiction (AHJ), typically the fire marshal or fire prevention bureau, will apply the relevant code to your specific site and can help you calculate the required total exit width. Exits should be distributed across the site rather than concentrated at one familiar gate, because attendees tend to leave the way they entered even when a closer exit exists.
Who is responsible for ordering an evacuation at a festival?
A single, named Event Commander should hold the ultimate authority to order an evacuation, with a documented chain of at least two backups. This authority should be established before the event opens and communicated to all staff. Police, fire marshals, and other emergency services can also independently order an evacuation if they determine it is necessary, and your plan should acknowledge and accommodate this. The plan should also define who holds the authority to stop the performance, which often acts as the first step in any evacuation by interrupting the crowd’s focus and enabling directional messaging.
How do I communicate with attendees during a festival emergency?
Use a multi-layered system that does not rely on any single channel. A public address system serves as the primary tool, but it should be paired with visual messaging on video screens, text or app-based alerts, and on-screen captions for attendees who are deaf or hard of hearing. Pre-draft scripts for each scenario before the event so that announcements remain calm, specific, and consistent across all channels. Use plain language and name specific locations. For example, “proceed to the north assembly point” works more effectively than “move away from the area.” Test all communication systems before gates open on event day.
How often should I practice the festival evacuation plan?
At minimum, conduct a tabletop exercise with your leadership team, including security, medical, and communications leads, before every event. For events with 1,000 or more attendees, a full-scale walk-through drill with all staff, including contractors and volunteers, is strongly recommended. The walk-through should include reverse-flow egress practice for stewards, who are typically trained on ingress but rarely rehearse guiding a crowd out. After every drill and every event, complete an after-action review that captures what worked, what did not, and assigns corrective actions with named owners and target dates. Update the plan whenever your site layout, capacity, or staffing changes.
Your Blueprint for a Safer Festival
A festival evacuation plan built on a generic template rarely fits your event. The six steps above give you a framework you can adapt to your specific site, crowd, and risk profile: assess your site, define your triggers and authority, design your routes and assembly points, assign and train your staff, communicate clearly, and plan for accessibility.
The difference between a plan that works and one that fails on event day often comes from how accurately it reflects the site. Static PDFs, hand-drawn sketches, and screenshots from Google Maps cannot show whether your exit widths are sufficient, whether your emergency vehicle route conflicts with your crowd egress path, or whether your assembly point can hold your maximum occupancy. A scaled, collaborative map can answer those questions.
OnePlan gives festival organizers a visual, map-based platform to design, document, and share every element of their evacuation plan, from route widths and assembly point capacities to staff positions and emergency vehicle access, on a single live plan that every stakeholder uses. As mentioned earlier, the Cheese & Chilli Festival relies on OnePlan for evacuation planning, and the SoulFest team achieved an 85% planning time saving with the platform.