Tag Archives: ssm

More Reasons to Support Dynamic Deployment

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The “Leverage Real-Time Data for Improved Ambulance Response Times” article that Zoll posted on their blog site did a good job of explaining response times and even the benefits of System Status Management (SSM) planning to the patient. But there is still more to the story that we have learned over the years since Jack […]

We Need Some New Stories

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We always hear that EMS is still a relatively new discipline. And in the scheme of medicine, or even public safety, that is certainly true. But we shouldn’t let the fact of its youth keep us from acknowledging that it has already been around long enough to accumulate some of its very own antiquated dogma. If you […]

Static v. Dynamic: A Continuum of Cost

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In our recently published book, “Dynamic Deployment: A Primer for EMS“, John Brophy and I established a dichotomy between the standards of static deployment and dynamic deployment in the very first chapter.  Fortunately, that strong polar perspective has spurred some interesting discussions for me. While the check-out lane analogy was effective in distinguishing some of the differences of static […]

Is ‘SSM’ Still a ‘Bad Idea’?

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Ideas often take time to saturate a market. Even if the idea is generally recognized as a good one, complete with compelling evidence, change can still take time.  As a current example, how many agencies still have a protocol for complete spinal immobilization on a long spine board for “any fall” or “significant impact”?  On that very […]

The Role of Response Time in EMS Performance

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Several months ago, Rob Lawrence of the Richmond Ambulance Authority started a thread on the High Performance EMS Group of LinkedIn by asking “So what does the phrase ‘High Performance EMS’ mean to you?” This innocent sounding question sparked immediate debate even within the small group at that time. Benjamin Podsiadlo of AMR quickly tied the quality […]

Index of Suspicion Includes Me

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It doesn’t take long in an EMT career before the excitement of “rushing to an emergency” turns in to “just another transport call.” The philosophy of “you call, we haul” in nearly every service can break the community servant’s spirit by turning a skilled paramedic into just an ambulance driver. But our system “just is […]

Dynamic System Status Management

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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.  While the practice […]

The Future of Prediction

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I have read the positions stating that calls for emergency services are completely random (justifying the reason they are often called “accidents”) and therefore not able to be predicted. But both academic literature and practical experience show that demand prediction can be an effective tool in helping to balance scarce resources (ambulances and their trained crews) with public demand (requests for emergency responses even […]