TrainController Gold and Silver - Freiwald Software

entered. The brake and stop indicators assigned to a block ensure that a train is stopped
at the appropriate location. Since TrainController assumes that the brake and stop
indicators belonging to a block are located near the exit of the block, this is also assumed
for the imaginary location of block signals.
TrainController displays the signal aspect currently valid for a block, when the first
indicator assigned to this block is reached. It is possible to say: “The engineer is able to
see the block signal at the end of a block when the train enters the block”.
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Signal Aspects
TrainController uses five different signal aspects - each is associated with a specific
color:
Color Meaning
Red Stop
Green Proceed
Yellow Proceed Restricted
White Shunting
Grey Signal not available
Table 2: Signal Aspects
For each train under its control the Dispatcher calculates the aspect of the next block
signal and the advance signal. The signal aspect is calculated depending how the train is
operated.
During shunting (see section 5.11, “Schedules”) white is indicated for all blocks reserved
for this train.
When a train is executing a schedule the availability of the next two blocks in front of
the current block of the train is calculated as home and as advance signal. If the train
must not enter the block, then the signal of the previous block is set to “red”. If the train
may enter the block, then the signal is set to “green”. If the block is available and reserved
for traveling with restricted speed, then the signal is set to “yellow”.
Similarly the same signal aspects are valid for the advance signal, which indicates in
advance, whether the train is allowed to leave the block behind the current block and
how the next block behind this advance block must be entered.