What kind of vehicle is on the road?
The vehicle is a truck.
    src        edge_attr  dst
0     0   to the left of   14
1     0  to the right of   15
2     1   to the left of    7
3     1   to the left of    6
4     1   to the left of    8
..  ...              ...  ...
68   17  to the right of   10
69   17  to the right of    5
70   17  to the right of    9
71   19   to the left of   15
72   19   to the left of    2

[73 rows x 3 columns]