## 4 Results and Discussion
### Results and Analysis of Service Scopes Division
According to the results mentioned in Table 5, seven fixed emergency shelters, namely, Mingzu middle school, A-Peng Plaza, Jinhua No. 2 primary school, and Jianchuan high school and Jinhua middle school, can fully meet the demand of the service within the scope of the surrounding population. Among them, the coverage rate of South farmer's market has reached 80%, basically satisfying the demands of the vast majority of the surrounding population. Considering that the south of this area is mainly housing estate, it still requires expanding its space in order to increase the coverage rate. The coverage rate of Jianyang Building Plaza and the hall square is only 75.18 and 29.84%, respectively, which is not up to 80%. Thus, it is difficult to meet the requirements of the majority of people and it is essential to adjust and optimize these two sites. According to Table 5, it can be seen that, firstly, the coverage rate of the Hall Plaza is 53.86%, with satisfactory infrastructure, yet it is difficult to provide its service scope through the perfect facilities configuration. In addition, the area of new emergency shelter may increase to solve the service scope issue. There are three alternative sites in this area as shown in Table 6. The overall infrastructure of Land Block 1 and 2 is poor, the transformation is difficult, and it is not connected with the main road of the city, and the traffic connectivity is poor as well. Therefore, these two places are not suitable to be regarded as alternative sites. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Area** & **Place** & **Type** & **Land Area (m\({}^{2}\))** & **Infrastructure** & **Traffic** & **The Ease of** \\ \hline \multirow{3}{*}{Hall Plaza Area} & Land Block 1 & Parking lot & 2750 & Good & Good & Easy \\  & Land Block 2 & Vacant lot & 10095 & Poor & General & Difficult \\  & Land Block 3 & Vacant lot & 1310 & General & Good & Difficult \\ Jianyang Plaza & \multirow{2}{*}{Land Block 4} & Vacant lot & 4303 & Poor & Convenient & Difficult \\ Area & & & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Basic information of each alternative site. \begin{table}
\begin{tabular}{l c c c c} \hline \hline  & **Effective** & **Population** & **The Number of** & \\
**Name** & **Land Area** & **Coverage** & **People Can Be** & **Coverage Rate (\%)** \\  & **(m\({}^{2}\))** & **Coverage** & **Accommodated** & \\ \hline Mingzu middle school & 37,000 & 1666 & 18,500 & 1110.44 \\ A-Peng plaza & 9595 & 1942 & 4796 & 246.96 \\ Jianyang building plaza & 1830 & 1217 & 915 & 75.18 \\ Jinhua No. 2 primary school & 5856 & 1894 & 2928 & 154.59 \\ Hall plaza & 4560 & 4233 & 2280 & 53.86 \\ Jianchuan high school and Jinhua & 28,044 & 3994 & 14,022 & 351.08 \\ middle school & 2200 & 1350 & 1100 & 81.48 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: The number of people serving and the coverage rate of emergency shelters in the Jianchuan county seat. As an emergency rescue, Land Block 3 has a perfect infrastructure. Its internal parking lot is mainly used for parking fire fighting vehicles. Through transformation, Land Block 3 can be used as emergency shelters since its transportation is accordingly convenient, thus, it can be used as a new emergency shelter to alleviate the bearing pressure of the Hall Plaza. Secondly, the coverage rate of Jianyang Building Plaza is only 75.18%, which is relatively low, while the gap in service population is considerable. Therefore, upgrading the facilities' configuration can hardly meet the needs of a service area. Furthermore, Jianyang Building Plaza, located in the ancient district of Jianchuan county seat, is constrained by the road width, land scale, and the need of ancient city protection. A feasible method is to build a new emergency shelter in the studied region. There is only one alternative site in this area (see Table 6).