Which kind of vehicle is on the road?
The vehicle is a car.
    src        edge_attr  dst
0     0  to the right of    7
1     0               on   16
2     0  to the right of   19
3     2               on   19
4     2   to the left of   16
..  ...              ...  ...
75   20   to the left of   16
76   20   to the left of    8
77   20  to the right of    6
78   20  to the right of    3
79   20   to the left of   15

[80 rows x 3 columns]