PRAGUE METRO LINES A, B, C
DISTRIBUTED INFORMATION AND CONTROL SYSTEM
FOR RAIL TRAFFIC CONTROL WITH DISPATCHER CENTRE
The system operates in an open loop, i.e. the information is processed and the traffic is controlled mostly by the traffic control dispatcher.
The system is built as an open system, i.e. allows not only for extension in terms of area (for example when the line is extended) but also functional extension, i.e. addition of other functions, automatic devices, creation of links to other systems, etc.
The train dispatcher operator system extend complete information about actual traffic situation on a selected line, information about status of communication and other important systems.
Multiuser Dispatcher Workplace
| Number of terminals |
21 X-terminals |
| Maximal distance between terminals |
250 m |
| Communication between terminals |
LAN 10Mbit/s |
| Communication with RTU on lines |
HDLC via modem |
| Approximate number of signals per line |
800 |
| Approximate number of commands per line |
500 |
| Total number of signals |
2400 |
| Total number of commands |
1500 |
RTU on Lines
| Line A (14km) |
12 RTUs |
| Line B (21km) |
24 RTUs |
| Line C (18km) |
15 RTUs |
Average Number of I/0 in 1 RTU
| Digital IN |
47 |
| Digital OUT |
30 |
Total Number of I/O in Distributed System
| Digital IN |
2400 |
| Digital OUT |
1500 |
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