Submission Guidelines
This file needs to have the same format with signal_plan.txt .
The file needs to have a '.txt' extension.
Each row represents a signal phase at that second.
A mandatory 5-second yellow phase (represented as 0) is applied if and only if when the phase is going to change.
There should be T+1 rows in this file. (First row is for the header, and the next T rows are for the signal phase). T is the length of the experiment in seconds.