Page 335 - IRSEM_Main Book

13.4.2 Functionalities of TMS: The system broadly envisages the functionality as
described below:

(a) Live Indications: Visual display wall: This displays track layouts of
stations, auto sections, IBS and interlocked LC Gates of section monitored by
TMS indicating real-time status of track circuited lines, signal aspects, points,
LC Gate etc. The panel will also provide alarm indications of failure of points,
signals, track circuits etc. as the case may be.

(b) Live Indication to Train controller terminals:

(i) These consist of LCD/LED monitors operated by one computer with GPU
(Graphic Processing Unit).

(ii) All terminals shall be able to display complete information of yards
covered by TMS with details of track circuits, signals, Points, LC gates
etc. Any failure of signalling system on any of yard will be available in
audio & visual form to draw attention of controller.

(iii) The train controller terminal is capable of running the Decision Support
System (DSS) feature. Decision support system identifies operational
conflicts (like precedence, crossing etc.) in advance and suggests
optimized control options to the controller.

(iv) Live Indications on terminals provided with staff at Important Junction
stations/Car shed/lobbies may be provided, as required.

(c) Train Describer System (TDS):

(i) It associates a train with an alpha-numeric mark called a train describer
tag.

(ii) The train description tag tracks the train in sections controlled by TDS.

(iii) The train describer system automatically assigns train describer tags
from a train number queue to trains originating/terminating at the
stations covered by TDS based on time table.

(iv) The train describer system registers & displays abnormal conditions
such as following:

 Single track circuit failure.
 Faulty position of points.

 Change in direction of a train.

 Division and joining of trains (not time tabled ones).
 Unidentified trains.

 Trains passing a signal showing a stop aspect.
 More trains on the same track circuit.

 Wrong marking of object/functions. (For example-A train with electric
loco being marked onto non-electrified line, A passenger train
marked to a goods line, A train being routed to wrong destination etc.).

Chapter 13: ATP, ETCS, IRATP (TCAS) & TMS Page 289 of 535