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Comprehensive Assessment of Emergency Medical Services 59 and 911 /Communications Center Operations Study Call Volume During calendar year 2011, Orange County EMS units were dispatched a total of 10,719 times. In addition to these incidents, Medic Units were ordered into "move -up" status 2,360 times. Figure 6 EMS Annual Call Volume 11,000 -----1----------1-----r-----r-- ' 10'719 1 I I I I 1 1 I � 1 I I I I 1 1 1 1 I 1 I I 1 1 1 10 +420 ' 1 I I I I I I I 1 I I I I I I I I 1 I 1 I 1 I 1 1 1 1 I 1 I I I 1 1 1 1 I I I 1 1 1 1 10,000 ---- - - - - -- - - - -�,> 33- - - - - -- 9 74 -- - - -- - - -- - - - -- - - - -- 1 I �I I I I 1 I 1 I I I 1 I I I I I I I 1 I 1 1 1 1 1 1 1 9,500 -- -9,69 - ----- ; - - - - - T - - - - - r ----- r - - - -- i - - - - - = - - - - - = ----- I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 9,000 _____ _____I 1_____1 L_____L____ J I _____J_____ I I I 1 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 8,500 2009 2011 "Move -ups" occur when the number of ambulances available to respond to a call is down to one (1) and that ambulance, regardless of where it is normally assigned, will be directed to "move -up" to a location generally towards the center of the County to be accessible to respond in any direction. If there comes a point that "no" ambulances are available (which does occur) South Orange Rescue and /or one or more of the County Fire Departments will be alerted to stand -by or, if available, to "move -up" to a specific staging location. It is a practice common in the industry often referred to as "modified system status management" as it provides a means of spreading thin resources strategically in an effort to provide the greatest range of coverage during peak call periods. Type of Call The type of calls to which EMS is dispatched will of course vary. A review of those calls dispatched during 2011 identified more than twenty call classifications. Of the 10,719 calls dispatched during 2011, almost 90 percent were listed in one of the 18 categories identified in Figure 7 which, as noted, included any call type representing more than one percent of the total. And, while they are not emergency dispatches per se, 2,360 "move -ups" were directed for strategic purposes; primarily to enhance coverage when the number of available ambulances to respond to an emergency was down to one (1). While the NCOEMS and the Performance Improvement Center have recommended that any EMS Unit activity be recorded in PreMIS in order that unit hour utilization rates can be (eventually) accurately determined, they are not included in this table or in the previous Call Volume table as emergency dispatches. Solutions for Local Government, Inc. 15