Is there either any stop sign or parking sign in the picture?
Yes, there is a stop sign.
     src        edge_attr  dst
0      0  to the right of   25
1      0   to the left of    9
2      0   to the left of    5
3      0  to the right of   16
4      0   to the left of   10
..   ...              ...  ...
165   35  to the right of   30
166   35   to the left of    5
167   35   to the left of   10
168   35  to the right of   31
169   35  to the right of   33

[170 rows x 3 columns]