Urban Disaster Prevention Shelter Location and Evacuation Behavior Analysis

Abstract

This study proposes a simple method of analyzing the road network factors and evacuation choices of residents in case of an earthquake. Using questionnaire survey data from Shin-Hua, Tainan County Taiwan, this study uses 6 indexes to evaluate shelter safety and applies a spatial statistic model with Local Indicators of Spatial Association (LISA) as an index to the evacuation choice of residents. Firstly, factor analysis is used to find the key factors affecting shelter safety, and cluster analysis is used to classify attributes. The final results with quantified indexes are then depicted in GIS maps for urban planning.

Open space suitability analysis for emergency shelter after an earthquake

“…Additional knowledge on population dynamics, as in Freire and Aubrecht (2012) might, be beneficial for a more detailed study. Optionally, remote sensing has shown advantages in assessing the urban fabric and population distribution in larger agglomerations (e.g., Aubrecht et al, 2013;Kubanek et al, 2010;Taubenböck, 2008). Some key numbers and characteristics of the data used in this exemplary case study can be found in Table 3.…”

“…People seeking shelter rely on some sort of existing and suitable network (roads) to access available shelter areas within a certain time (Tai et al, 2010). Kongsomsaksakul et al (2005) use a two-level mathematical representation to show authorities' selections of best-suited evacuation sites on the one hand and evacuees' decisions on the escape route to that determined site on the other hand.…”

“…Possible shelter sites should not include areas prone to other haz-ards (floods, landslides, etc.). Additionally, secondary hazards like potential fire eruption from nearby hazardous materials (e.g., gas and petrol sellers) need to be taken into account and avoided in the choice of a suitable shelter area (FEMA, 2007;Tai et al, 2010).…”

“…One important concern of strategies to improve preparedness for response is the identification and provision of suitable areas for emergency shelter before disasters unfold (Chandler, 2007;Chien et al, 2002;Donohou, 2012;Perry, 1979;Perry and Green, 1982;Tai et al, 2010). Especially in urban contexts the availability of such areas is often limited and there is increasing demand for risk-sensitive land use planning which are often lacking (e.g., Global Communities, 2012).…”

Development of a Two-Way Evacuation Route Database Based on Interviews Conducted with Historic Preservation Area Residents

“…Surveys have been conducted to analyze residents' perceptions of volcanic hazards [5], to clarify the risks of and reasons for evacuation [6], and to assess tourists' perceptions of hurricanes, based on forecasts [7]. Algorithms and programming methods were created to generalize optimal evacuation plans (e.g., models used to analyze building evacuability [8], to develop mathematical modeling to simulate evacuation problems [9], to develop GIS-based mapping of evacuation choices during earthquakes [10], to develop a new multiagent system (SimTread) that calculates the shortest walking times [11], and to develop an evacuation simulator [12]). Studies have evaluated evacuation times to determine optimal routes.…”