What about helicopters? Does Melbourne not have/use theirs in those cases or is the system just overwhelmed?

Asking because (different country) when we had a person present with stroke symptoms and called 911, they sent both an ambulance and the helicopter. The heli came first but it had to land a ways off on a field and they had to walk over and basically arrived around the same time as the ambulance. A couple minutes earlier basically. No fire engine dispatched but that made sense too as it's volunteer based and while they would've been much closer, getting them to the station would've taken longer than the helicopter.

Driving time for the ambulance if it came from the same place as the helipad would've been about 15 min for the ambulance. Fire engine driving time from volunteer department: 2 min but no dedicated paramedic services, just volunteer firefighters. Heli time in air probably about 2 minutes given the "as the crow flies" distance I just checked, add whatever time is needed to get them in the air and such.

Now I can't really trust these numbers fully of course but according to "a quick AI analysis" :P Melbourne with millions of population has 0.08 helicopters and 8-10 ambulances per 100k population while the aforementioned location is at about 0.3 helicopters per 100k and 6-12 ambulances. Can it be true? It also says New York City has no emergency helicopters at all? Los Angeles has 0.18 per 100k? I know my current location definitely also has none at all. For millions of people.

I was under the impression that air ambulances in Victoria are mostly for rural areas - either responding to incidents in the middle of nowhere, or flying patients to Melbourne for urgent specialist care. Most of them aren't even based in Melbourne, they're out in regional centres like Bendigo and Warrnambool[0].

A helicopter seems like it would be pretty useless for landing in an urban area. I can't imagine winching is risk-free or would save much time, and you can probably put many more ambulances on the ground for the cost of a single air ambulance.

[0] https://www.ambulance.vic.gov.au/air-ambulance-victoria

I don't think my taxes/insurance costs/donations to charity are high enough. London (donation funded) has a helicopter service that attends 6 serious trauma cases a day. Denmark, Germany and others has a Helicopter Emergency Medical Service which delivers a senior doctor and paramedic. It probably doesn't scale well.

Basic issues like overhead powerlines make life difficult for helicopters. They are used in rural Australia as an alternative to road, but only due to time saving. In a city, well you get a road ambulance/paramedic/medical team.

The (Melbourne) Victorian Ambulance Cardiac Arrest Registry claims third best in the world in out of hospital cardiac arrest.