Mission Clock
Local Time
1
2
3
4
5
6
7
8
9
10
11
12
00:00:01
Train-free Window Timer
00:00:00
No Window
Portal 1 (P1)Portal 2 (P2)
MAIN TUNNEL (MT)
CP1
CP2
CP3
CP4
CP5
CP6
CP7
CP8
CP9
CP10
CP11
CP12
CP13
CP14
CP15
CP16
CP17
CP18
CP19
CP20
CP21
CP22
CP23
CP24
CP25
CP26
CP27
CP28
CP29
CP30
CP31
CP32
CP33
CP34
CP35
CP36
CP37
CP38
CP39
CP40
CP41
CP42
CP43
CP44
CP45
CP46
ENTRY
EXIT
ESCAPE TUNNEL (ET)
Interlocks
TRAIN IN TUNNEL
ESCAPE TUNNEL CLEAR
EMERGENCY
VEHICLE COUNT < 15
BARRIERS OPERATIONAL
System State
NORMAL OPERATION
Normal Operation SOP:
1. System operating in NORMAL mode.
2. No emergency active in Main Tunnel.
3. No emergency active in Escape Tunnel.
4. Emergency status indicator GREEN.
5. Entry and exit boom barriers OPEN during approved train-free access window.
6. Vehicle access permitted only after authorization and inspection.
7. Train schedules continuously monitored by control system.
8. No vehicle entry permitted outside authorized train-free period.
9. Cross passages maintained CLOSED and standby for emergency use.
10. Escape Tunnel operating in vehicular transit mode.
11. Ventilation system operating in normal ventilation mode.
12. Fire detection, suppression and alarm systems healthy.
13. CCTV, PA and communication systems active.
14. Escape Tunnel maintained ready for immediate emergency conversion.
15. No alarms, interlocks, overrides or emergency conditions active.
16. Continuous monitoring by Tunnel Control Operator.
ET BARRIER (ENTRY)CLOSED
ET BARRIER (EXIT)CLOSED