Is the blue bus on the left?
Yes, the bus is on the left of the image.
     src        edge_attr  dst
0      0  to the right of   25
1      0   to the left of   14
2      0   to the left of   33
3      0   to the left of   31
4      0   to the left of    6
..   ...              ...  ...
246   39   to the left of    7
247   39   to the left of   23
248   39   to the left of   21
249   40   to the left of   12
250   40   to the left of   14

[251 rows x 3 columns]