## 4 Results and Discussion
### Results and Analysis of Service Scopes Division
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Name**} & **Site** & **Terrain** & **Side Type** & **Road** & **Effective** & **Disaster** & **Infrastructure** & **Radius** & **Weighted** & **Weighted** \\  & **Condition** & **Slope** & **Width** & **Area** & **Impact** & **Conditions** & **Radius** & **Radius** & **Radius** & **Coverage** \\ \hline Mingzu & Favorable & \(\leq\)15\({}^{\circ}\) & Playgrounds & \(\geq\)15 m & 37,000 & Medium & Medium & (3) & 400 m & 1647 m & 2047 m \\ school & areas (3) & (3) & (3) & (3) & m\({}^{2}\) (5) & (3) & & & & & \\ \hline A-Peng & Favorable & \(\leq\)15\({}^{\circ}\) & \(\geq\)15\({}^{\circ}\) & \multirow{2}{*}{Plaza (5)} & \(\geq\)15 m & 9595 m\({}^{2}\) & Good & \multirow{2}{*}{Medium (3)} & \multirow{2}{*}{366 m} & \multirow{2}{*}{1725 m} & \multirow{2}{*}{2091 m} \\ plaza & areas (3) & (3) & & (3) & (3) & (5) & (4) & & & \\ \hline Jianvang & Favorable & \(\leq\)15\({}^{\circ}\) & \multirow{2}{*}{Plaza (5)} & \(\geq\)8 m & 1830 m\({}^{2}\) & Qualified & \multirow{2}{*}{Qualified (2)} & \multirow{2}{*}{335 m} & \multirow{2}{*}{736 m} & \multirow{2}{*}{1071 m} \\ plaza & areas (3) & (3) & & (2) & (1) & (2) & & & & \\ \hline Jinhua & \multirow{2}{*}{no.2} & Favorable & \(\leq\)15\({}^{\circ}\) & \multirow{2}{*}{Playgrounds} & \(\geq\)15 m & 5856 m\({}^{2}\) & Medium & \multirow{2}{*}{Medium (3)} & \multirow{2}{*}{385 m} & \multirow{2}{*}{1689 m} & \multirow{2}{*}{2074 m} \\ primary & areas (3) & (3) & & (3) & (3) & (5) & & & & \\ school & & & & & & & & & \\ \hline Hall plaza & Favorable & \(\leq\)15\({}^{\circ}\) & \multirow{2}{*}{Plaza (5)} & \(\geq\)15 m & 2560 m\({}^{2}\) & Medium & \multirow{2}{*}{Good (4)} & \multirow{2}{*}{354 m} & \multirow{2}{*}{3252 m} & \multirow{2}{*}{3606 m} \\ areas (3) & (3) & & & (3) & (1) & (3) & & & & \\ \hline Jianchuan & \multirow{2}{*}{high school and Jinhua & \multirow{2}{*}{Favorable } & \(\leq\)15\({}^{\circ}\) & \multirow{2}{*}{Playgrounds} & \(\geq\)8 m & 28,044 & Medium & \multirow{2}{*}{Medium (3)} & \multirow{2}{*}{402 m} & \multirow{2}{*}{6352 m} & \multirow{2}{*}{6754 m} \\ Jinhua & areas (3) & (3) & & (3) & (2) & m\({}^{2}\) (5) & (3) & & & \\ middle & & & & & & & & & \\ school & & & & & & & & & & \\ \hline South & \multirow{2}{*}{Faroxide } & \(\leq\)15\({}^{\circ}\) & Empty & \(\geq\)15 m & 2200 m\({}^{2}\) & Qualified & \multirow{2}{*}{Qualified (2)} & \multirow{2}{*}{349 m} & \multirow{2}{*}{5840 m} & \multirow{2}{*}{6189 m} \\ farmer & areas (3) & (3) & & spaces (3) & (3) & (5) & (2) & & & \\ \hline \hline \end{tabular} Note: (1) The score value of each parameter is in brackets, the score ranges from 1 to 5 points; (2) The condition of site is mainly concerned with the possibility of earthquakes, landslides, debris flow and other disasters. There are three levels of advantageous location, unfavorable location, and dangerous lot; (3) The possibility of disaster impact mainly considers the flammibility of the building, the distance from the surrounding buildings, whether it is in the fire prone area, and whether it is far from the danger source. There are three grades: good, medium, and qualified.  
\end{table} 
Table 4: The basic parameters and the weighted distance of each emergency shelters at the Jianchuan seat. Figure 5: Service scope of emergency shelters in the Jianchuan county seat. The number of people involved in the service scope of the emergency shelter can be obtained by superimposing the service scope of the emergency shelter with the map of population density. Then, the coverage rate of the emergency shelters can be achieved on the basis of the number of people served and the capacity limitation. The capacity limitation of emergency shelters refers to the actual number of people in each emergency shelter. Through the effective tolerance area and the standard value of the per capita refuge area of each site, we can find that the per capita refuge area of this paper is 2 m\({}^{2}\) each person.