Are there American flags or traffic lights in the image?
Yes, there is a traffic light.
    src        edge_attr  dst
0     0   to the left of   20
1     0               on    2
2     3         crossing    2
3     3  to the right of    6
4     3         carrying    4
..  ...              ...  ...
67   26  to the right of    5
68   26  to the right of    6
69   26  to the right of    4
70   27   to the left of   11
71   27   to the left of   20

[72 rows x 3 columns]