4.2.1. Degree of the Network

For a weightless network, the node degree represents the number of connected edges between nodes. The greater the degree of node, the higher the connectivity, the better the traffic conditions in the actual geospatial space, or it is more likely to be the hub or transfer station in the actual bus network. The node degree statistics in the bus complex network are shown in Figure 2 and Table 1 below, and some nodes are shown in Table 2.

**Figure 2.** Node degree distribution of the Xi'an public transit network.


**Table 1.** Statistics of the partial node degree for the Xi'an public transit network.

**Table 2.** Docking stations with a high degree for the Xi'an public transit network.


Note: Name = Station name; Degree = Node degree.

The above table indicates that the highest value of node degree in the Xi'an public transport complex network is 99, with an average of 8.047, indicating that there are eight lines per site, the intensity distribution is extremely uneven, and the number of nodes with intensity below 10 is 2215, accounting for 78.9% of the total, the ratio of high nodes intensity above 52 is 1.1%.
