Are there cars or buses in the picture?
Yes, there is a bus.
    src        edge_attr  dst
0     0   to the left of    6
1     0   to the left of    3
2     0   to the left of    8
3     0   to the left of    7
4     0  to the right of   10
..  ...              ...  ...
69   20  to the right of   10
70   20  to the right of   13
71   20  to the right of   14
72   20  to the right of    0
73   20  to the right of    1

[74 rows x 3 columns]