What kind of place is this?
It is a sidewalk.
    src        edge_attr  dst
0     0  to the right of    1
1     0  to the right of   14
2     0  to the right of   13
3     0  to the right of   12
4     0  to the right of    7
..  ...              ...  ...
63   13   to the left of    0
64   13   to the left of    4
65   14   to the left of    8
66   14   to the left of    0
67   14   to the left of   11

[68 rows x 3 columns]