I am the EMS supervisor for a unique island community. During the winter we have MAYBE 300 residents on all 9 islands (We cover 160 something square miles, and only about 7 are land, 9 island only 3 are inhabited year round). During the summer though the population of the island swells to as many as 20,000 on a busy holiday weekend. The island has become known as a party island in the summer. The only way on or off the island in the summer is to take a auto/passenger ferry, a passenger only ferry, personal boat, or airplane. There is also the Air Ambulance for emergent transport off the island. The Airport is a daylight airport only, and the ferries stop running by midnight at the latest and begin again at 6am. In the winter, air is the only way on or off the island. Our run volume is about 500/year, with a majority of runs occurring between May and September. Usually about 50-75 runs outside of those months.
We have a very progressive Medial Director, and have incorporated a very progressive medical treatment. A majority of patients are treated and released. Fractures, lacerations, etc are bandaged, steri stripped, and sometimes even non narcotic pain meds given, and the patient is left in care of self or family and friends and told to transport themselves off the island for definitive treatment. Patients that have had too much to drink are given a 2000cc Bolus of NS and if they are responsive able to walk, and alert enough, they are sent home to sleep it off. We regularly clear C-Spine on falls and simple traumas. We fly anyone who has injuries or illnesses that need that transport, and have even transported on a ferry with just the cot to turn care over to a service on the other side.
I foresee more EMS entities entering into a system similar to how we run. We even have the right to refuse Air Ambulance transport to patients who are demanding it, but do not have injuries or illnesses to justify an air ambulance.