They are relatively new - we saw them last June. The prior year - 2012, they had interns at almost every hotel and bus area writing down and tracking times for buses. They said they were doing research on the timing of the buses, etc. We also had someone ask us questions as well. I think many people have gotten frustrated with the wait times so they post them in "real time". I also noticed that if it said a time and it got changed, it updated the time and put "traffic" or "accident" under it so you would know why the time changed.