30,60,60 with U_s = 0.5:
TBS deadlines 12, 16, 20

Objects waiting at stations 2 and 3 at time 0

[0, 5]: move to station 1
[5, 10]: move to station 2, new TBS D = 15, d = 25, accept
[10, 17.5]: move to station 0
[17.5, 22.5]: move to station 3, new TBS D = 15, d = 40, accept
[22.5, 27.5]: move to station 0
[27.5, 32.5]: move to station 1
[32.5, 60]: wait

