Understanding Topological and Spatial Attributes of Bus Transportation Networks in Cities of Chongqing and Chengdu
Table 6
Assortativity of nodes observed based on k-core layers.
--
BTN-CQ
BTN-CD
layers
number of nodes observed
number of nodes observed
Core layer
-0.011
205
-0.007
557
k-core = 65
-0.004
403
-0.010
624
k-core = 60
-0.011
548
-0.018
720
k-core = 55
0.000
620
0.027
917
k-core = 50
0.005
758
0.034
1003
k-core = 45
0.022
911
0.035
1092
k-core = 40
0.030
1043
0.039
1207
k-core = 35
0.040
1130
0.043
1359
k-core = 30
0.047
1289
0.056
1540
k-core = 25
0.072
1510
0.079
1760
k-core = 20
0.107
1767
0.095
1919
k-core = 15
0.133
2026
0.129
2232
k-core = 10
0.154
2297
0.155
2621
k-core = 5
0.167
2492
0.159
2756
k-core = 1
0.167
2539
0.159
2766
k-core = n means nodes observed are in the levels of which k-shell is greater than or equal to n; in particular, k-core = 1 means nodes observed are all of the nodes in BTNs [30, 31].
