Event Medical Services Risk Calculator

Medical Service Risk Assessment

SCORE	FIRST RESPONDER	AMBULANCES /PERSONNEL	DOCTOR	NURSE	NHS AMBULANCE MANAGER	SUPPORT UNIT
< 20	4	0 / 0	0	0	0	0
21-25	6	1 / 2	0	0	VISIT	0
26-30	8	1 / 2	0	0	VISIT	0
31-35	12	2 / 8	1	2	1	0
36-40	20	3 / 10	2	4	1	0
41-50	40	4 / 12	3	6	2	1
51-60	60	4 / 12	4	8	2	1
61-65	80	5 / 14	5	10	3	1
66-70	100	6 / 16	6	12	4	2
71-75	150	10 / 24	9	18	6	3
> 75	200+	15+ / 35+	12+	24+	8+	3

How upto date is the Risk Calculator?

Purple Guide Medical Section 5 - Updated December 2024

The Purple Guide was created to ensure that you have an adequate level of medical support at your event. It is important to note that the current guide is considered somewhat confusing in that it suggests that if an event operates over one day, it must fall into a Tier 3 category (see table below). However, if your event has a capacity of less than 500 people at any one time and overnight camping over 3 days, then it falls into both a Tier 1 and Tier 3 category. Because of this inconsistency, some ambulance services have opted to consider the old scoring system for some events. Please also note that the guide is updated on a regular basis and we try to keep this information as current as possible, this information is only as current as the date it is published.

By taking both calculators into account, you, as an event organiser will be in a better position to decide on the most appropriate level of cover for your event. If you need any further assistance in planning your event and/or resources, get in touch with our team who will be more than happy to assist.

Tier	Discription	Essential	Desirable
Tier 1	Fewer than 500 attendees , No significant problems expected	1-2 First Aiders or First Responders
Tier 2	More than 500 but fewer than 2000 attendees, Low risk of significant problems	4 First Responders	1 Paramedic or Nurse, Site ambulance and crew
Tier 3	2001 - 5000 Attendees	1 Paramedic, 2 Nurses, 6 Responders, 1 Crewed Ambulance	1 Doctor
	5001 - 10,000 Attendees	2 Paramedic, 2 Nurses, 8 Responders, 1 Crewed Ambulance	1 Doctor
Tier 4	10,000 - 20,000 Attendees	1 Doctor, 2 Paramedic, 4 Nurses, 8 Responders, 1 Crewed Ambualnce	Control Staff x-Ray Facilities, Mental Health Facilities
	20,001 - 50,000 Attendees	2 Doctor, 3 Paramedic, 6 Nurses, 10 Responders, 2 Crewed Ambulance	Control Staff x-Ray Facilities, Mental Health Facilities
	Over 50,001 Attendees	3 Doctor, 4 Paramedic, 8 Nurses, 12 Responders, 2 Crewed Ambualnce	Control Staff x-Ray Facilities, Mental Health Facilities