An event risk assessment helps organisers identify hazards, decide who could be harmed, put sensible controls in place and prepare for emergencies.
In the UK, event organisers need to take health and safety seriously. The exact duties can depend on the event, workplace arrangements, venue, activities and people involved.
A useful risk assessment is not just a document prepared before an event and then forgotten.
It should be part of the planning process.
Identify the hazard → Assess the risk → Control it → Assign responsibility → Review it
What Is an Event Risk Assessment and Why Is It Important?
An event risk assessment is a structured review of things that could cause harm during an event.
It helps organisers consider:
What could go wrong?
Who could be affected?
How serious could the harm be?
How likely is it to happen?
What controls are already in place?
What additional controls are needed?
Who is responsible?
When should the assessment be reviewed?
For example, a loose cable across a walkway could create a trip hazard.
The risk assessment might identify attendees, staff and suppliers as people who could be affected.
Controls could include securing the cable, using a suitable cable ramp, changing the route or removing the cable from the walkway.
The assessment also creates a record of the decisions made during planning.
A good assessment should help people prevent problems, not simply document them after something happens.
How Do You Identify Hazards at an Event?
Walk through the event from the viewpoint of an attendee, member of staff and supplier.
Think about what happens before, during and after the event.
Venue hazards
Check:
Floors and steps
Doors and exits
Lighting
Toilets
Accessibility
Stairs
Lifts
Temporary structures
Storage areas
Loading areas
Crowd movement
Consider:
Entrances
Exits
Queues
Narrow walkways
Bottlenecks
Changes in floor level
High-density areas
Emergency routes
Equipment
Review equipment such as:
Staging
Speakers
Microphones
Screens
Lighting
Cables
Temporary structures
Furniture
Fire safety
Consider:
Emergency exits
Escape routes
Fire detection
Fire-fighting equipment
Combustible materials
Cooking
Temporary structures
Staff awareness
Weather
Outdoor events may need to consider:
Heavy rain
Strong winds
Extreme heat
Lightning
Flooding
Poor ground conditions
Cold weather
Catering
Look at:
Food preparation
Allergens
Hot equipment
Gas or electrical appliances
Food storage
Spills
Waste
Guest information
Transport and deliveries
Consider:
Vehicle movement
Loading and unloading
Pedestrian routes
Parking
Supplier access
Deliveries
Traffic management
Also consider activities specific to the event.
A festival, wedding, conference, sporting event and public exhibition can all have very different hazards.
How Do You Assess and Rate Event Risks?
After identifying a hazard, assess the risk.
Two common factors are:
Likelihood: How likely is the incident to happen?
Severity: How serious could the consequences be?
You can use a simple scale such as 1 to 5 for each.
Example risk matrix
| Likelihood | Severity | Risk Score |
|---|---|---|
| 1 Rare | 1 Minor | 1 |
| 2 Unlikely | 2 Moderate | 4 |
| 3 Possible | 3 Serious | 9 |
| 4 Likely | 4 Major | 16 |
| 5 Very likely | 5 Severe | 25 |
A common approach is:
Risk score = Likelihood × Severity
For example:
A trip hazard might have:
Likelihood: 3
Severity: 3
Risk score: 9
The score alone does not make the decision.
You then consider what controls are needed to reduce the risk.
For example:
Hazard: Cable across walkway
Risk: Someone trips and is injured
People at risk: Attendees, staff, suppliers
Initial score: 9
Control: Reroute cable or secure it with a suitable cable protector
Responsible person: Technical lead
Review: Before doors open
The matrix should help prioritise risks rather than replace professional judgement.
What Should an Event Risk Assessment Template Include?
A practical template can include the following fields:
| Field | What to record |
|---|---|
| Hazard | What could cause harm? |
| People at risk | Who could be affected? |
| Existing controls | What is already being done? |
| Likelihood | How likely is it? |
| Severity | How serious could it be? |
| Risk rating | Overall priority |
| Additional controls | What else is needed? |
| Responsible person | Who will make sure it happens? |
| Deadline | When must it be completed? |
| Review date | When will it be checked again? |
| Status | Open, in progress or complete |
Do not make the template unnecessarily complicated.
The important thing is that it clearly records the hazard, risk, controls and responsibility.
You may also need supporting documents depending on the event, such as:
Site plans
Emergency procedures
Fire safety information
Supplier documents
Equipment information
Method statements
Insurance information
Traffic plans
Medical arrangements
The documents needed will depend on the event and its activities.
What UK Health and Safety Requirements Apply to Events?
UK event health and safety requirements can involve several areas of law and guidance.
For example, the Health and Safety at Work etc. Act 1974 establishes broad duties for employers and others in relation to health and safety.
Other requirements can apply depending on the work and event, including areas such as:
Risk assessment
Workplace safety
Fire safety
Manual handling
Work equipment
Electrical safety
Construction or temporary structures
Food safety
First aid
Accessibility
Licensing
Traffic management
The Health and Safety Executive (HSE) provides guidance on risk assessment and event-related health and safety matters.
Event organisers should also understand the responsibilities of the venue and contractors.
Do not assume that hiring a venue transfers every safety responsibility to the venue.
Before the event, establish who is responsible for areas such as:
Fire arrangements
Emergency procedures
First aid
Crowd management
Security
Temporary structures
Electrical equipment
Supplier activities
Incident reporting
For larger or more complex events, specialist advice may be appropriate.
How Can You Manage Crowd Safety at an Event?
Crowd safety starts with understanding how people will move through the event.
Look at the complete journey:
Arrival → Entrance → Registration → Main area → Activities → Facilities → Exit
Then identify where people could become crowded or blocked.
Pay particular attention to:
Capacity
Know the permitted or planned capacity for each relevant space.
Do not assume the maximum capacity of a venue automatically works for your event layout.
Stages, furniture, bars, exhibition stands and other structures can change usable space and movement.
Entrances
Consider:
Number of entrances
Entry times
Ticket or registration checks
Queue arrangements
Security
Accessibility
Exits
Make sure emergency exits remain available and are not blocked by:
Equipment
Furniture
Decorations
Storage
Queues
Bottlenecks
Look for places where people naturally stop.
These could include:
Registration desks
Bars
Food stations
Toilets
Narrow corridors
Exhibition stands
Popular attractions
Stewarding
Make sure staff know:
Where they need to be
What they are watching for
Who they report to
How they communicate
What to do during an emergency
Crowd plans should reflect the actual event rather than simply copying a previous plan.
How Do You Create an Emergency Evacuation Plan for an Event?
An evacuation plan explains how people can leave safely during an emergency.
Start with the venue’s existing emergency arrangements and identify what is specific to your event.
Consider:
Emergency exits
Escape routes
Assembly points
Alarm systems
Emergency lighting
Emergency announcements
Staff responsibilities
Accessibility
First aid
Communication methods
Emergency service access
Everyone involved should understand their role.
For example:
Event manager: Overall coordination
Venue team: Venue emergency procedures
Stewards: Guide guests and monitor movement
Technical team: Follow agreed procedures for equipment
First aid team: Respond to medical incidents
Do not rely only on verbal instructions.
Important information should be documented and communicated to the relevant team members.
Accessibility also needs careful consideration.
Think about how people with mobility, hearing, visual or other access needs will receive emergency information and leave safely.
For complex events, evacuation planning should be coordinated with the venue and other relevant professionals or authorities where appropriate.
How Can You Create an Effective Event Contingency Plan?
A risk assessment asks:
What could go wrong?
A contingency plan asks:
What will we do if it happens?
Start with the most realistic and important scenarios.
| Problem | Prevention | Backup | Owner |
|---|---|---|---|
| Heavy rain | Weather monitoring | Alternative indoor space | Event manager |
| Speaker cancellation | Confirm speaker | Backup speaker/discussion | Programme lead |
| AV failure | Test equipment | Backup presentation method | Technical lead |
| Power failure | Check venue arrangements | Agreed emergency procedure | Venue lead |
| Supplier delay | Confirm delivery time | Alternative arrangement | Logistics lead |
| Medical incident | First aid arrangements | Emergency response procedure | Safety lead |
The plan should be realistic.
Do not create a 50-page document that nobody reads.
Focus on the risks that could seriously affect the event.
For outdoor events, weather planning may be particularly important.
For conferences, technical and speaker risks may need more attention.
For festivals or large public events, crowd, security, transport and emergency planning may require much more detailed arrangements.
FAQs About Event Risk Assessments in the UK
What should be included in an event risk assessment?
An event risk assessment should identify hazards, people who could be affected, existing controls, likelihood, severity, risk rating and additional control measures.
It should also identify who is responsible for each control and when the assessment will be reviewed.
Supporting documents may be required for specific activities or events.
How do you complete an event risk assessment?
Start by identifying the hazards.
Then decide who could be harmed and how, assess the likelihood and severity, and determine the level of risk.
Next, identify suitable controls and assign responsibility for putting them in place.
Finally, review the assessment before the event and whenever there is a significant change to the plan, venue, activity or conditions.
What is an event risk matrix?
An event risk matrix is a tool used to compare the likelihood of an incident with the potential severity of its consequences.
For example, a 1–5 likelihood scale can be multiplied by a 1–5 severity scale to produce a risk score.
The matrix helps planners prioritise risks, but the numerical score should not replace professional judgement.
Who is responsible for event health and safety?
Responsibility can be shared between the organiser, venue, employers, contractors, suppliers, staff and other relevant parties.
The exact legal duties depend on the circumstances.
The organiser should make responsibilities clear rather than assuming someone else is dealing with a risk.
For example, agree who is responsible for crowd management, emergency communication, first aid, supplier safety and evacuation procedures.
How do you manage crowd risks at events?
Start by understanding expected attendance and how people will move through the venue.
Assess entrances, exits, queues, capacity, bottlenecks, facilities and high-density areas.
Then consider appropriate stewarding, communication and emergency procedures.
Crowd planning should also account for changes during the event, such as a popular activity creating an unexpected queue.
Do events need an emergency evacuation plan?
Emergency evacuation planning is an important part of preparing for foreseeable emergencies.
The exact arrangements depend on the venue, event type, number of people, activities and risks involved.
Organisers should work with the venue and relevant responsible parties to understand escape routes, assembly arrangements, emergency communication and staff responsibilities.
Learn More About Event Risk and Event Management
Risk management is only one part of professional event planning.
A good event planner also needs to understand event strategy, budgeting, logistics, supplier management, operations and guest experience.
Event Study provides event planning training covering areas such as Events Management, Event Planning Strategy, Budget Management and Logistics & Operations.
Learning these areas together can help planners build safer and more organised events from the first planning meeting through to event-day delivery.
Conclusion
A good event risk assessment is more than a form.
It is a practical way to identify hazards before they become incidents.
Start by walking through the event, identify the risks, assess their likelihood and potential severity, and put sensible controls in place.
Then assign clear responsibility and review the assessment as the event develops.
Combine this with crowd planning, emergency evacuation procedures and practical contingency plans.
The result is not a guarantee that nothing will go wrong.
It is a better-prepared event where the team understands the risks, knows what to do and can respond more effectively when circumstances change.