How is the vehicle on the road called?
The vehicle is a truck.
    src        edge_attr  dst
0     0   to the left of   15
1     1  to the right of   14
2     1  to the right of   12
3     1  to the right of   18
4     1   to the left of   15
..  ...              ...  ...
70   22   to the left of   20
71   22  to the right of   19
72   22   to the left of    5
73   23  to the right of   21
74   23  to the right of   13

[75 rows x 3 columns]