Are the traffic lights to the left of the bus?
Yes, the traffic lights are to the left of the bus.
    src        edge_attr  dst
0     0               of    2
1     0   to the left of   12
2     1  to the right of    3
3     2  to the right of    7
4     2  to the right of    9
5     2  to the right of    8
6     2  to the right of   13
7     2   to the left of   12
8     2   to the left of   14
9     2  to the right of    5
10    2  to the right of    4
11    3   to the left of    1
12    4   to the left of    2
13    4        on top of   13
14    5   to the left of    2
15    5   to the left of    6
16    6               of    2
17    6  to the right of    5
18    6  to the right of    7
19    6  to the right of    9
20    6   to the left of   14
21    7   to the left of   10
22    7   to the left of    6
23    7   to the left of    2
24    8               on    9
25    8   to the left of   13
26    8   to the left of   10
27    8   to the left of    2
28    9   to the left of    2
29    9   to the left of    6
30   10  to the right of    8
31   10  to the right of   13
32   10  to the right of    7
33   11   to the left of   12
34   12  to the right of   11
35   12  to the right of    2
36   12  to the right of    0
37   13   to the left of   10
38   13  to the right of    8
39   13   to the left of    2
40   14       driving on   12
41   14  to the right of    6
42   14  to the right of    2