Are there buses or cars?
No, there are no buses or cars.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of    1
2     1   to the left of    6
3     1   to the left of    0
4     2               in    8
5     3   to the left of    6
6     3   to the left of    0
7     4  to the right of    7
8     5  to the right of    7
9     6  to the right of    1
10    6  to the right of    3
11    7   to the left of    9
12    7   to the left of    5
13    7   to the left of    4
14    9  to the right of    7