What kind of vehicle is on the road?
The vehicle is a bus.
    src        edge_attr  dst
0     0               on   15
1     1   to the left of    7
2     1  to the right of    5
3     1   to the left of    3
4     2   to the left of    6
..  ...              ...  ...
57   17   to the left of   10
58   17   to the left of    5
59   18  to the right of   11
60   18  to the right of    9
61   18               of   10

[62 rows x 3 columns]