Does the vehicle on the railroad tracks have red color?
Yes, the train is red.
    src        edge_attr  dst
0     1               on   10
1     1   to the left of    5
2     2   on the side of    1
3     2  to the right of   13
4     5  to the right of    1
5     6   to the left of    8
6     6  to the right of    9
7     8  to the right of    9
8     8  to the right of   13
9     8  to the right of    6
10    9   to the left of    8
11    9   to the left of    6
12   11  to the right of   13
13   13   to the left of    8
14   13   to the left of    2
15   13   to the left of   11