Are there both buses and cars in the image?
No, there is a bus but no cars.
    src        edge_attr  dst
0     0  to the right of    9
1     2  to the right of   13
2     3  to the right of    9
3     3  to the right of   10
4     4   to the left of   11
..  ...              ...  ...
65   20   to the left of   12
66   20   to the left of    8
67   20   to the left of   11
68   20   to the left of    9
69   21  to the right of   13

[70 rows x 3 columns]