Spatial accessibility and equality of emergency medical service in the city center of Shanghai, China

Authors: Wenjie Lai*, East China Normal University, Jun Wang, East China Normal University
Topics: Urban Geography, Medical and Health Geography
Keywords: Spatial accessibility, spatial equality, emergency medical services, traffic congestion, population distribution, spatiotemporal variability, Shanghai
Session Type: Paper
Day: 4/5/2019
Start / End Time: 8:00 AM / 9:40 AM
Room: Truman, Marriott, Mezzanine Level
Presentation File: No File Uploaded


Variability in spatial accessibility and equality of emergency medical services (EMS) has become a major concern in evaluating the quality of emergency medical services in China. Response time and medical resources proportion are critical in the provision of emergency medical services. Traffic conditions (e.g. traffic speed and traffic congestion) can significantly affect the response time, while population distribution can affect the EMS resources proportion, especially in large cities like Shanghai. This study estimates travel time of medical ambulance based on the real-time traffic congestion mapping during flat peak hours, morning peak hours and evening peak hours, and measuring the corresponding spatial accessibility of EMS based on the response time, medical resources allocation and dynamic population distribution. Furthermore, Lorentz curve and Gini coefficient analysis were employed to evaluate the spatial equality of EMS, according to the spatial accessibility of EMS in the city center of Shanghai. By mapping the response area (response time <10min) and spatial accessibility during different periods, we found that traffic congestion and day & night population distribution could affect the overall spatial accessibility and equality. The results help policy makers in planning the emergency medical services resource that is sensitive to the spatiotemporal variation of its accessibility.

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