Are there buses next to the ground?
No, there is a train next to the ground.
    src        edge_attr  dst
0     0             near    8
1     0           behind    8
2     1           behind    8
3     1   to the left of    8
4     3      in front of    8
5     3   to the left of    4
6     4  to the right of    3
7     4  to the right of    7
8     5   to the left of    8
9     5   to the left of    6
10    5             near    8
11    6             near    7
12    6  to the right of    5
13    7             near    6
14    7   to the left of    4
15    8          next to    5
16    8           behind    3
17    8          next to    0
18    8      in front of    1
19    8      in front of    0
20    8  to the right of    1
21    8  to the right of    5
22    8            above    9
23    8            above    6