Just as the PP said,no actual schedules just go to the bus stop and one should be there soon,many times you get to the stops and the buses are right there or just coming,other times you might have to have some patience and wait 20-25 minutes.There are times you'll see 3-4 buses come in a 5-10 minute time span that are going to the same park before you see the one for your park.This is why I have no idea how the schedule works but for the most part they get you to your destination pretty easily.