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→Block signals explained
<br>'''Common mistakes'''<br>
[[file:not_enough_signals.png|left|120px160px]]
''Crossings with not enough signals'' - the whole red area is single block and can be occupied by only one train. That will make that crossing very ineffective. For it to work better, there need to be 6 more signals (marked by green rectangles)
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[[file:trains_selfblock.png|left|120px160px]]<br><br>As practical example of the ''Not enough signals'', train could block itself in such block. For this train to move at all, there must be more signals placed in marked rectangles.
