A train in automatic mode will not drive on a track if it would pass a signal on the left side unless there is also a signal on the right side at that signal. This can sometimes cause a “no path” error where the track appears to be connected, but part of the connection is a one way track. In the image, the tracks are from top to bottom:
What happens when a train is in automatic mode?
A train in automatic mode will not drive on a track if it would pass a signal on the left side unless there is also a signal on the right side at that signal. This can sometimes cause a “no path” error where the track appears to be connected, but part of the connection is a one way track.
Where to place signals on a double track railway?
Signals should be placed only in the direction of travel prior to the junctions on the double track portion of the line. Do not place a signal prior to the junction on the single track side, as you can cause the line to jam if there are more than two trains sharing the same track.
What happens when a train enters a block?
A regular signal is green when there is no train on the block behind it. When a train enters the block, all signals going into the block will turn red. When a train is in the process of entering the block, the signal turns yellow for a short time before turning red. Signals are placed on the right side of the track.
When to use chain signals at train crossings?
Since trains should not wait on crossings, this leads to the commonly stated rule: Use chain signals in and before crossings and use regular signals at the exits of crossings. In general, whenever a waiting train would block another train that is going on a different track, a chain signal should be used to prevent the train from waiting.
What do the colors on a train signal mean?
While railway lights are more complicated and vary in different parts of the world, colors are universally understood to mean the same thing: red for stop, yellow for caution and green for go. Passengers can also take comfort in knowing track circuits, designed by William Robinson in 1872,…
