How is this vehicle called?
That is a bus.
   src        edge_attr  dst
0    0  to the right of    7
1    1   to the left of    6
2    3  to the right of    7
3    5  to the right of    7
4    6  to the right of    1
5    6               on    6
6    7   to the left of    0
7    7   to the left of    3
8    7   to the left of    5