What is the train that looks yellow approaching?
The train is approaching the platform.
    src        edge_attr  dst
0     0  to the right of    2
1     0  to the right of   15
2     0   to the left of   11
3     0               of    6
4     0   to the left of   10
..  ...              ...  ...
61   15   to the left of   17
62   15   to the left of    0
63   15  to the right of    8
64   15  to the right of    7
65   17  to the right of   15

[66 rows x 3 columns]