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Estimation of space-time traffic corridor earthquake risk exposure based on cellular trajectory data

Authors: Yen-Ju Chen*, National Taiwan Normal University, Department of Geography, Kuo-Chen Chang, National Taiwan Normal University, Department of Geography
Topics: Hazards, Risks, and Disasters
Keywords: spatial-temporal, CDR, earthquake, disaster risk
Session Type: Paper
Presentation File: No File Uploaded

The assessment of spatial and temporal dimensions is an important part for disaster risk management, but it has been disregarded or presumed to be static because of the difficulty of data collection or spatial-temporal modeling. With the progress of information technology, Internet and mobile devices are becoming increasingly popular. There are large amounts of data being recorded which has potential in data mining or applied research. Especially for mobile phone data, it records user’s trajectories from cell tower. There for, the data can improve the quality of disaster risk assessments in a more detailed time scale and resolution. In order to assess disaster risk more precisely, the simulation of earthquake impact will be calculated with Taiwan Earthquake Impact Research and Information Application Platform (TERIA), and cellular data will be used as population trajectory to measure traffic corridor exposure at spatial and temporal dimensions in this paper. The purpose of this paper will be (1) Interpolation cellular trajectory data in spatial and temporal dimensions and create the trajectories continuously. (2) Simulate earthquake impact with TERIA to measure the passing failure probability of road network. (3) assessment of earthquake disaster risk in every hour, and discuss the difference between day and night. The results are very encouraging and the dynamic population characteristic can be very beneficial for applications in earthquake disaster risk management based on the use of Call Detail Record (CDR) data.

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