First aid equipment and first aid training are "as described" the first intervention.

Even having a de-fib at site you are after soonest depatch to actual medical care.

The issue comes when you have someone with a major bleed or suspected heart attack and the despatcher is giving you an ETA of 4 hours plus.

At least nowadays the despatchers are being honest about how long the casualty is likely to be lying on the floor rather than the old days of EMAS who you rang every half hour for hours on end.

Basically there is nothing new to plan just deal with each incident dynamically based upon the available information on the day - ambulance / taxi / company vehicle / long wait

On a personal rather than a professional note, I learned a lot after a recent incident.

My wife was recently suddenly taken ill while walking in the outskirts of London.  She had collapsed and stopped breathing for a while. It was my CPR and the fact we were with friends that kept her alive

Despite being served by the capital's ambulance service, they refused to make this incident - a possible cardiac arrest where breathing had failed - as a Category 1 (immediate) call. It wasnt until my 3rd 999 call that I was put through to an ambulance service in the midlands as London's control were so busy. They immediately made the call a cat 1 and were gobsmacked it hadnt been treatd as such from the outset. An ambulance arrive 3hrs and 20 minutes after the 999 call. It was now dark and cold.

My friends has a blanket they used for their dog and I called friends who lived locally to bring sleeping bags and whatever they could as my wife was shivering 

My wife is home now and is back to 100% nagging mode - so all is well :)

My lesson learned is I now carry a number of foil emergency blankets in the car and carry four in my back pack when out walking. I would strongly suggest that assessing how you would keep people warm or dry when waiting hours for medical help is an essential part of emergency planning now