6A: Verify  ETA with TMC
3A: Verify  ETA with TMC
Agency 1
Control Center
Rider
Transfer Point
Traffic Management Center
1: Send Request
3:  Calc ETA
Agency 2
Control Center
6: Calc ETA
8: Notify Driver
9: Notify Rider
10: Notify CC2
11A: Vehicle 1 Arrives
Vehicle 1 (Fixed-route Bus)
5: Location and RSA
11B: Vehicle 2 Arrives
Vehicle 2 (Fixed-route Bus)
Scenario #1 - Automated Approval of Transfer Between Fixed-route Buses
2: Location and RSA
4: CC1 Forwards Request  to CC2
7: Auto OK