## 4 Key Lines' Identification of Subway Network
### Experimental Result Analysis
#### 4.3.2 Local Influence Analysis
Under the analysis of Space L and Space P, the comparison results are shown in Figure 8c: Under Space L, Line 10, Line 5, and Line 2 have the highest degree centrality influence  
\begin{table}
\begin{tabular}{c c c c c c c c c c c c c} \hline \hline  & \multicolumn{4}{c}{**Degree Centrality**} & \multicolumn{4}{c}{**Near-Centrality**} & \multicolumn{4}{c}{**Intermediate Centrality**} \\ \cline{2-13}
**Lines** & \multicolumn{2}{c}{**Influence**} & \multicolumn{2}{c}{**Index**} & \multicolumn{2}{c}{**Sensitivity Index**} & \multicolumn{2}{c}{**Influence Index**} & \multicolumn{2}{c}{**Sensitivity Index**} & \multicolumn{2}{c}{**Influence Index**} & \multicolumn{2}{c}{**Sensitivity Index**} \\ \cline{2-13}  & **Space L** & **Space P** & **Space L** & **Space P** & **Space L** & **Space P** & **Space L** & **Space P** & **Space L** & **Space P** & **Space L** & **Space P** \\ \hline Batong Line & 0.0331 & 0.0429 & 0.0099 & 0.2308 & 0.2329 & 0.2511 & 1.0722 & 0.2595 & 1.1512 & 0.9514 & 1.6563 & 0 \\ Changing Line & 0.0961 & 0.0836 & 0.1579 & 0.1818 & 0.2123 & 0.251 & 5.6882 & 0.3901 & 1.2471 & 1.5942 & 2.422 & 0 \\ Daxing International Airport Express & 0.0127 & 0.0013 & 0.3333 & 0.5 & 0.0278 & 0.0258 & 15.5309 & 2.3116 & 0.2016 & 0.188 & 2.145 & 0 \\ Fangshan Line & 0.1121 & 0.1901 & 0.0909 & 0.1473 & 11.6482 & 0.4019 & 3.2233 & 1.642 & 3.2551 & 1.7857 & 2.7474 & 3 \\ Capital Airport & 0.0127 & 0.0054 & 0.3333 & 0.6667 & 0.0287 & 0.0222 & 18.3196 & 0.3757 & 0.7872 & 0.1883 & 2.145 & 0 \\ Empres & 0.0127 & 0.0054 & 0.3333 & 0.6676 & 0.0287 & 0.0225 & 10.8196 & 0.3757 & 0.1782 & 0.1838 & 2.145 & 0 \\ Line 1 & 0.2634 & 0.4842 & 0.2787 & 0.3106 & 3.7704 & 0.2025 & 0.5406 & 0.2311 & 4.7006 & 10.438 & 0.2926 & 1.6582 \\ Line 10 & 1.505 & 0.20671 & 0.3671 & 0.2798 & 37.6092 & 4.8911 & 0.7635 & 0.2465 & 7.7828 & 1.7066 & 2.935 & 1.872 \\ Line 13 & 0.265 & 0.2552 & 0.4783 & 0.4972 & 1.4249 & 0.2457 & 1.0745 & 0.3752 & 4.2588 & 1.6453 & 2.8109 & 2.7136 \\ Line 14 West & 0.2193 & 0.2319 & 0.36 & 0.3499 & 3.502 & 0.1422 & 1.2269 & 0.3394 & 2.5787 & 0.8957 & 4.183 & 2.4942 \\ Line 14 East & 0.0455 & 0.0328 & 0.1111 & 0.3333 & 0.0088 & 0.0635 & 8.4215 & 0.2961 & 0.4968 & 0.4404 & 2.1702 & 0 \\ Line 15 & 0.1738 & 0.2128 & 0.2143 & 0.2222 & 0.2643 & 0.2647 & 6.0401 & 2.2992 & 1.7233 & 2.1428 & 2.2782 & 0 \\ Line 16 & 0.0137 & 0.0071 & 0.0588 & 0.11111 & 0.2446 & 0.1766 & 0.3384 & 2.4542 & 0.7333 & 0.7488 & 2.1389 & 0 \\ Line 2 & 0.4148 & 0.7549 & 0.4286 & 0.5041 & 1.9412 & 0.5707 & 0.7336 & 0.3505 & 3.7501 & 1.0312 & 2.3055 & 1.7241 \\ Line 4 & 0.3182 & 0.57 & 0.2055 & 0.2189 & 0.6848 & 2.5085 & 0.6849 & 0.2924 & 0.5011 & 1.4984 & 1.8743 & 1.4488 \\ Line 5 & 0.4602 & 0.5399 & 0.3885 & 0.4127 & 4.4536 & 0.217 & 0.09092 & 0.4349 & 5.3196 & 1.1858 & 2.6438 & 1.4889 \\ Line 6 & 0.3691 & 0.759 & 0.2542 & 0.3070 & 7.9404 & 0.4665 & 0.7799 & 0.2463 & 5.4146 & 0.69 & 2.1777 & 1.8682 \\ Line 7 & 0.3014 & 0.3826 & 0.1833 & 0.1784 & 0.4649 & 0.3275 & 0.8248 & 0.2279 & 2.4266 & 1.7626 & 4.253 & 1.9527 \\ Line 8 & 0.3391 & 0.3166 & 0.3158 & 0.3333 & 0.7568 & 0.2513 & 1.0862 & 0.3186 & 3.4351 & 1.0696 & 3.531 & 2.0835 \\ Line North & 0.0704 & 0.0708 & 0.1304 & 0.2086 & 0.1295 & 0.2035 & 0.0951 & 0.2829 & 1.7016 & 0.8611 & 1.4125 & 1.8641 \\ Line 9 & 0.2445 & 0.3284 & 0.3182 & 0.574 & 1.58312 & 3.9464 & 0.5388 & 0.2530 & 5.3205 & 2.2728 & 2.4462 & 2.2007 \\ Line 51 & 0.0169 & 0.0356 & 0.0709 & 4.0085 & 0.1428 & 0.1340 & 7.4496 & 0.3354 & 0.7462 & 2.5666 & 1.1718 \\ Xijiao Line & 0.0127 & 0.0032 & 0.1111 & 0.2 & 0.0646 & 0.0654 & 8.7791 & 2.2943 & 0.4978 & 0.4664 & 2.1398 coefficient, and Line 10, Line 6, and Line 2 have the highest degree centrality sensitivity coefficient. Under Space P, Line 13, Line 2, and Line 10 have the highest degree centrality influence coefficient, and Capital Airport Express, Line 5, and Line 2 have the highest degree centrality sensitivity coefficient.