Table 2: Examples of topological metrics calculated over three networks described in Appendix. The three rightmost columns, respectively, report the raw metric value (i.e., as calculated on the original network), the average and standard deviation of the metric obtained in random equivalent networks, and the final Z-score.

Metric Network Raw value Random value Z-Score

Number of nodes Light-rail
Subway
Tram

Link density Light-rail
Subway
Tram

Efficiency Light-rail
Subway
Tram

Modularity Light-rail
Subway
Tram

Transitivity Light-rail
Subway
Tram