How do ems calls not have a transport assigned automatically? Isn't that a.delay in service
BLS EMS calls are dispatched with one BLS Fire Truck (4-man) to assess and determine the need for ALS and/or transport. If they determine a transport is needed, they will call for an ambulance, typically code 2 (no lights/sirens). They can also request an ALS unit to assist.
ALS EMS calls are sent with the first due BLS as well as an ALS units (could be the same unit, 4-man crew) to assess and determine the need for transport. There is little or no delay since ALS calls typically require a more extensive assessment and often require treatment and/or IVs, giving the ambulance sufficient time to get there once requested.
Any significant trauma (shootings/stabbings/severe auto accidents, etc.), along with drowning calls and codes, and a few other ALS calls, will get an ambulance automatically. Ambulances may also be dispatched automatically based on distance. The dispatchers also have the option of adding or releasing ambulances prior to dispatch. Sometimes a call may go out as a code, but the dispatcher has already determined it to be a deceased person, and may send the ambulance code 2 (no lights/sirens) or not at all, just as they can add an ambulance to a call that may not get one automatically. Most calls are dispatched based on basic protocols and seldom modified by the dispatchers.
This policy has changed over the years based on response times and staffing (and budget).
Ed