Spatial optimization of emergency medical facilities in Mega-City considering multi-factors

Authors: Liang Zhou*, Lanzhou Jiaotong University, Haowen Yan, Lanzhou Jiaotong university, Qinke sun, Lanzhou jiaotong university, Lei Che, Northwest normal unversity
Topics: Urban Geography, Spatial Analysis & Modeling, Applied Geography
Keywords: Points of Interest, traffic data, urban safety, fire station, spatial optimization
Session Type: Poster
Day: 4/6/2019
Start / End Time: 9:55 AM / 11:35 AM
Room: Lincoln 2, Marriott, Exhibition Level
Presentation File: No File Uploaded


Compared with other medical services, emergency medical services are more dependent on space-time accessibility, while the existing research is in low accuracy to describe the location of emergency medical service needs and is not well integrated analysis to the traffic status of the road network at different times. In this study, we formulate a Network-based Location-Allocation Model (NLAM) and analyze the spatial characteristics of emergency medical facilities within 5th ring road network in Beijing by considering time, traffic status, and population factors. The conclusions are as follows: The high demand area of potential emergency medical services is concentrated in the middle, north and east of the study area during the daytime, in the middle and north during the nighttime. From day to night, the center direction of the potential demand distribution shifted west and south. The road traffic data at 20 times were analyzed and the average driving speed of all roads at the same time point in the study area on the weekend was higher than of the working days, the roads with larger range speed in different times were the main road. The 15-minute coverage of emergency medical facilities at 20 time points on weekdays and weekends were analyzed. There was 100% coverage at night, and affected by traffic congestion, there were few blind coverage areas in the daytime, the blind area is mainly distributed in Shijingshan South Station and the Jingxian Bridge in south 5th ring.

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