Information Technology Reference
In-Depth Information
Tabl e 1 . Line Caracteristics of each Model Station
Model line Train headway
Dwell time at a station
Line A
120 seconds
60 seconds (A Main track and side track are
used alternately.)
Line B
Line C
300 seconds
30 seconds
Fig. 4. Models of Systems
- Field equipment (track circuits, point machines and on-board control
unit existing in a station area) have radio transmission interfaces and are
connected by radio link each other.
- Interlocking function is performed based on radio communications be-
tween the equipment, and is not performed by a centralised device.
- Track circuits and point machines manage their status and requests from
the train which are related to on-board control unit ID.
- The train transmits route setting requests to track circuits and point
machines.
- The point machine controls itself based on the request if safety is con-
firmed , and transmits the answer to the train.
- The track circuit transmits movement authority to the train based on the
status of train existence and point machine within its area.
Fig. 5. Outline of new concept system
This system performs a function of conventional interlocking device by
data communications between field equipment capable of autonomous action.
