• Title/Summary/Keyword: Emergent service delivery system

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A Pickup/Delivery Management System Using Geographic Information System and Global Positioning System (GIS와 GPS를 이용한 배달/수거 물류관리시스템)

  • Ham, Sung-Hun;Lee, Moon-Kyu
    • IE interfaces
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    • v.12 no.4
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    • pp.557-566
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    • 1999
  • This paper considers a door-to-door service system in which pickups or deliveries are performed by a trip of a single vehicle. Each customer request specifies the quantity of the load transported, the location, and the time window within which it is to be picked up or delivered. Since the system is demand responsive, i.e., new or emergent requests become available in real-time, the current vehicle route has to be reconstructed to include these requests. In this case, only continuous vehicle tracking enables control over the requests and ensures that the requests are satisfied on time. This paper suggests a pilot pickup/delivery management system integrating a geographic information system(GIS) and a global position system(GPS) to efficiently deal with such a dynamic environment. The GIS offers a way of displaying the vehicle route on digital maps for the region under concerned. Also displayed is the current location of the vehicle obtained from the GPS. A heuristic algorithm is used to dynamically determine the vehicle route. A practical example is provided to show the feasibility of the system.

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Utilization of Hospitals Located Outside Patients' Residential Areas among Those with Acute Cerebral Infarction (급성뇌경색증 환자의 타지역 의료기관 이용현황 및 관련 특성 연구)

  • Lee, Sae Young;Kim, Stella Jung-Hyun;Park, Keun Young;Kim, Ji Man;Kim, Han-Joon;Lee, Changwoo;Shin, Euichul
    • Health Policy and Management
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    • v.28 no.1
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    • pp.48-52
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    • 2018
  • Background: The current study evaluated the hospital utilization and characteristics of patients who received health care services for acute cerebral infarction outside their own residential area. Methods: Using the 2014 national patient survey data, information on 2,982 patients diagnosed with acute cerebral infarction through emergency department were retrieved for the analyses. Multiple logistic regression was performed to investigate the characteristics associated with using hospitals outside residential area among patients diagnosed with acute cerebral infarction. Results: Fifteen point nine percent of patients admitted for acute cerebral infarction utilized hospitals outside their residential area. Patients residing in a province were 7.7 times more likely to utilize hospitals located outside their residential areas compared to those living in Seoul metropolitan city. Patients living in Gangwon and Jeolla were 0.26 times and 0.48 times more likely to go to hospitals in different geographical areas. Also, patients within the age group of 80 years and over were 0.65 times less likely to be admitted to hospitals outside their residential area compared to those in their 40s-50s. Conclusion: The use of hospitals outside patient's residential area is shown to be substantial, given that the acute cerebral infarction requires immediate recognition and treatment. The findings on the geographical differences in the hospital utilization suggest further investigation.