Dynamic System Status Management

System Status Management (SSM) is the fluid deployment of ambulances based on the hour-of-the-day and day-of-the-week in order to match supply, defined as Unit Hours of Utilization (UHU), with expected demand, expressed as calls for service, in the attempt to provide faster response by locating ambulances at “posts” nearer their next calls. áWhile the practice is still notáunanimously embraced by all services, it has a sound foundation both in theáresearch literature dating back to the 1980′s as well as in practice today. áExperience has shown that ambulance response times can be dramatically decreased using this type of dynamic deployment, but it is also recognized that it is possible to reduce performance when these techniques are not applied properly. áThe direction of the results of a system implementation are typically influenced by the system design, competence of the managers creating the plan, and commitment of the workforce in implementing it. áTherefore the best practice is a simple and straightforward implementation that will show positive results quickly. áThis methodology ensures a positive return on investment along with garnering the necessary buy-in from staff to make the project a success.

In his article, “System Status Management – The Fact is, It’s Everywhere“, ápublished in the Journal of EMS (JEMS) magazine back in 1989, Jack Stout explained the concept of SSM and tried toádispelácertain myths. áBased on foreseen Geographic Information System (GIS) technology and even general computing capabilities of that time, it was quite logical to assume in his Myth #2 that “no matter how thoroughly the response zone concept is fine-tuned in practice, it cannot be made to cope effectively with the dynamic realties of the EMS environment.” áBut systems implemented today around the US are capable of calculating dynamic response zones in a small fraction of a second while even being based on time-aware historic driving patterns making a truly dynamic system status management process a reality. áA practical and proven example of a dynamically functioning system status management application is the Mobile Area Vehicle Routing and Location Information System, or simply MARVLIS.

The following Slideshare presentation does an excellent job of telling the story of why and how the system works:

High Performance EMS is MARVLIS[slideshare id=8765718&w=425&h=355&sc=no]

View more presentations from hp_ems

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High Performance Emergency Medical Services (HP-EMS) systems provide effective clinical care promoting positive patient outcomes and community wellness while maintaining a focus on improving economic efficiency of the system.  This site is dedicated as a community seeking to increase agency performance by promoting useful information regarding the developing trends and improvements in the efficiency of delivering basic and advanced medical care in the field.

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Comments
Elizabeth Nicholas
Did You Watch ‘Nightwatch’ Last Night?
Some of the EMTs on the show also have a nursing degree. Dan Flynn also works as an ER nurse, I believe.
2015-05-08 21:15:05
Bill
In Support of Backboards
Good article. I'm stunned with the comments about "if a study exists showing backboards help" comment. You'll never get an IRB board to approve such a study, but that's where the methods of immobilizing the joint above and below the fracture come in. The comment about disregarding this post because the author is not like…
2015-04-20 16:15:16
ALBERT MIGNONE
In Support of Backboards
IF YOU HAVE EVER HAD THE MISFORTUNE OF HAVING A REAL MCI, BACKBOARDS ARE STILL AN ASSET. REMEMBER YOU MIGHT HAVE 15 AGENCIES WITH DIFFERENT LEVELS OF TRAINING, DIFFERENT FUNDING WHERE THEY MIGHT HAVE NEWER EQUIPMENT BUT NOT ENOUGH TO WORK AN INCIDENT. FIREFIGHTERS WILL BE ASSISTING, MOSTLY WITHOUT EXTRA TRAINING. A DOUBLE BUS CRASH…
2015-04-20 08:53:03
Gloria Bowman
In Support of Backboards
At a swimming pool, the use of a backboard is the most efficient and safest way for the lifeguards to remove an unconscious/submerged (non-spinal) victim from deep water. After the person has been rescued and brought to the side of the pool, the assisting lifeguard holds the victim in place while the primary lifeguard puts…
2015-04-17 22:03:38
Dennis Dudley
In Support of Backboards
Don't throw away the back board yet! You can have all the discussions regarding it's validity but I am in favor of keeping it on board the rig. Scoop stretchers and Reeves are good and I have used them in place of the board, but I find the sturdy back board as a good way…
2015-04-17 14:03:34

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