Is there a traffic light at the intersection?
No, there is a car at the intersection.
    src        edge_attr  dst
0     0   to the left of   24
1     1   to the left of   11
2     1   to the left of   10
3     1   to the left of   13
4     1   to the left of   25
..  ...              ...  ...
93   28  to the right of    9
94   29  to the right of    6
95   29  to the right of   24
96   29  to the right of   20
97   29  to the right of   25

[98 rows x 3 columns]