Is there any signal light or bench in the image?
No, there are no benches or traffic lights.
    src        edge_attr  dst
0     0  to the right of   13
1     0   to the left of   15
2     0  to the right of   11
3     0   to the left of   12
4     0   to the left of   10
..  ...              ...  ...
66   16   to the left of   17
67   16  to the right of   13
68   17  to the right of    7
69   17  to the right of    6
70   17  to the right of   16

[71 rows x 3 columns]