I have a question about tracks crossing. | Factorio | Page 1

short mirage Jun 15, 2023, 5:11 PM

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First off here is a screenshot: Im trying to have it so two trains cant crash. Does this look right? How do signals and the other things work?

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Or does it look like this

smoky wave Jun 15, 2023, 5:13 PM

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these two trains won't crash, but this isn't particularly efficient, either. you want to have the intersection completely separated by signals from the other rails generally speaking

short mirage Jun 15, 2023, 5:13 PM

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smoky wave these two trains won't crash, but this isn't particularly efficient, either. you...

What do you mean

smoky wave Jun 15, 2023, 5:13 PM

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a rule of thumb with signals is chain signals entering and going through the intersection, and standard signals on the exits

smoky wave Jun 15, 2023, 5:14 PM

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short mirage What do you mean

basically, only have the intersection be purple

short mirage Jun 15, 2023, 5:14 PM

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smoky wave basically, only have the intersection be purple

Do i not?

smoky wave Jun 15, 2023, 5:14 PM

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otherwise, a train that passes the intersection going to the right will keep blocking the other one trying to go up

short mirage Jun 15, 2023, 5:14 PM

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How do i get the little part purple then

smoky wave Jun 15, 2023, 5:15 PM

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on the right

short mirage Jun 15, 2023, 5:15 PM

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smoky wave on the right

Where

short mirage Jun 15, 2023, 5:15 PM

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smoky wave otherwise, a train that passes the intersection going to the right will keep blo...

Also no train is going to the right

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Oh you meean

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nrm

smoky wave Jun 15, 2023, 5:15 PM

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short mirage Also no train is going to the right

yert

short mirage Jun 15, 2023, 5:15 PM

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smoky wave <:yert:535220587803443200>

I thought you meant down right

smoky wave Jun 15, 2023, 5:16 PM

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ah, i see

short mirage Jun 15, 2023, 5:16 PM

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Where do i place the other signal then

smoky wave Jun 15, 2023, 5:16 PM

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i'm on my phone right now so i can't really draw a diagram, but put it on the right exit of the intersection

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think of a standard road intersection - you want those signals where the traffic lights would be

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(this analogy doesn't really hold up any further than that though)

short mirage Jun 15, 2023, 5:17 PM

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Should I remove my other two?

smoky wave Jun 15, 2023, 5:18 PM

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no, keep em

short mirage Jun 15, 2023, 5:18 PM

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And do i need a rail train signal or just the normal one

smoky wave Jun 15, 2023, 5:19 PM

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normal one

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i'll try to make a diagram in a sec

short mirage Jun 15, 2023, 5:19 PM

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Ok but the screenshot up above looks fine besides the one im missing

smoky wave Jun 15, 2023, 5:24 PM

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replace the bottom signal with a chain signal

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don't have time to draw a diagram rn

short mirage Jun 15, 2023, 5:29 PM

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ok

short mirage Jun 15, 2023, 5:30 PM

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smoky wave replace the bottom signal with a chain signal

I did it

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But it still is the same color as before

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Positon rather

smoky wave Jun 15, 2023, 5:34 PM

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yeah that's fine

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i can give a crash course on signals later

raven elbow Jun 15, 2023, 5:36 PM

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@short mirage Is this one-way or two-way track?

short mirage Jun 15, 2023, 5:36 PM

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Oh hey its you again

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its one way

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Both the tracks you see are one way

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I just dont want the event where they crash

raven elbow Jun 15, 2023, 5:37 PM

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Good, in that case simply chain signal before the intersection, rail signal after

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Following the directions trains drive on that track, and always on the right, of course

short mirage Jun 15, 2023, 5:37 PM

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what do you mean

raven elbow Jun 15, 2023, 5:38 PM

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Which part?

short mirage Jun 15, 2023, 5:38 PM

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hold on let me send a screen shot

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Does this look okay

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I dont get how signals work

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Do trains stop there if there are two?

raven elbow Jun 15, 2023, 5:40 PM

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For the diagonal track that's good, assuming trains move south to north

short mirage Jun 15, 2023, 5:40 PM

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Ok

raven elbow Jun 15, 2023, 5:40 PM

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For the horizontal, repeat the same pattern

short mirage Jun 15, 2023, 5:40 PM

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And the tracks that are left to right are good

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?

raven elbow Jun 15, 2023, 5:40 PM

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Follow the direction the trains move on that track, place a chain signal before the crossing and a rail signal after

short mirage Jun 15, 2023, 5:40 PM

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Do i just want that little intersection purple?

raven elbow Jun 15, 2023, 5:41 PM

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The color is completely irrelevant

short mirage Jun 15, 2023, 5:41 PM

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raven elbow Follow the direction the trains move on that track, place a chain signal before ...

But

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I cant

raven elbow Jun 15, 2023, 5:41 PM

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As long as the intersection is its own tiny block

raven elbow Jun 15, 2023, 5:41 PM

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short mirage I cant

Why?

short mirage Jun 15, 2023, 5:41 PM

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The top one would block the horizontal one

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How do i fix the horizontal one

raven elbow Jun 15, 2023, 5:41 PM

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What do you mean with that? Can you show it?

noble merlin Jun 15, 2023, 5:42 PM

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You have plenty of room for the signals. You don't need them as close as possible.

short mirage Jun 15, 2023, 5:42 PM

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Like this?

raven elbow Jun 15, 2023, 5:42 PM

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The signals don't have to be right up against the crossing, having them a few tiles away is fine

short mirage Jun 15, 2023, 5:42 PM

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noble merlin You have plenty of room for the signals. You don't need them as close as possibl...

Bruh i dont know how they work

raven elbow Jun 15, 2023, 5:42 PM

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You should probably find a tutorial...

short mirage Jun 15, 2023, 5:42 PM

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raven elbow The signals don't have to be _right_ up against the crossing, having them a few ...

I tried that

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Thats why i came to the discord

raven elbow Jun 15, 2023, 5:43 PM

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Judging from your minimap, these are not one-way tracks...

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If trains can only go from south to north, how do they get back to your base?

short mirage Jun 15, 2023, 5:43 PM

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Yeah they are one way

noble merlin Jun 15, 2023, 5:43 PM

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Yeah find a tutorial on youtube there are many. for now. Place a signal on the north side of the horizontal track just to the right of the signal on the diagonal track.

short mirage Jun 15, 2023, 5:43 PM

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Idk but it works

raven elbow Jun 15, 2023, 5:43 PM

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Does it?

short mirage Jun 15, 2023, 5:43 PM

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yes

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I have two working just fine

raven elbow Jun 15, 2023, 5:44 PM

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Try getting on that train and have it drive a full cycle

short mirage Jun 15, 2023, 5:44 PM

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ok

raven elbow Jun 15, 2023, 5:44 PM

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in automatic, not you driving it manually

short mirage Jun 15, 2023, 5:44 PM

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Like the horizontal one

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?

raven elbow Jun 15, 2023, 5:44 PM

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The vertical one

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/diagonal

short mirage Jun 15, 2023, 5:44 PM

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Yeah that is automatic

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It works fine

raven elbow Jun 15, 2023, 5:45 PM

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Have you seen it go through its full schedule since you placed these signals?

short mirage Jun 15, 2023, 5:46 PM

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Oh hold up

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No you're right it does not work

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It was just working though

noble merlin Jun 15, 2023, 5:46 PM

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They're two way tracks?

short mirage Jun 15, 2023, 5:46 PM

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I dont think so

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One goes down the other will go left or right

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They wont be on the same track besides that intersection

raven elbow Jun 15, 2023, 5:47 PM

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short mirage It was just working though

Before you added the signals?

noble merlin Jun 15, 2023, 5:47 PM

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The diagnoal track will ONLY have trains going from North West to South East corret?

raven elbow Jun 15, 2023, 5:47 PM

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It won't

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It's 2-way track

noble merlin Jun 15, 2023, 5:48 PM

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YEah it looks 2 way.

raven elbow Jun 15, 2023, 5:48 PM

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All the tracks I see on the minimap are 2-way

noble merlin Jun 15, 2023, 5:48 PM

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On the mini map.

short mirage Jun 15, 2023, 5:48 PM

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I just r emoveed the signals

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And the train works now

raven elbow Jun 15, 2023, 5:48 PM

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Until they crash...

short mirage Jun 15, 2023, 5:48 PM

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ha

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i know

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thats what im tryinh to fix

raven elbow Jun 15, 2023, 5:48 PM

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Anyway, with that clarified, back to step 1

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To signal 2-way track, place pairs of chain signals on all 4 sides of the intersection

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A pair being two signals exactly opposite of the track from each other

short mirage Jun 15, 2023, 5:50 PM

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wait

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wait wait

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I just added two and it works now

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what do you mean 4 sides of the intersection

raven elbow Jun 15, 2023, 5:51 PM

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short mirage Jun 15, 2023, 5:51 PM

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And what does it matter if its chain signals or the other one

raven elbow Jun 15, 2023, 5:51 PM

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Putting rail signals on 2-way track causes deadlocks as soon as you have more than one train on that track

short mirage Jun 15, 2023, 5:52 PM

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Ok but this worked just now

raven elbow Jun 15, 2023, 5:52 PM

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No

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Now the trains can't go back anymore

noble merlin Jun 15, 2023, 5:52 PM

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Take a gander at this setup:

short mirage Jun 15, 2023, 5:53 PM

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Dude

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I cant place 4

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Only three

noble merlin Jun 15, 2023, 5:54 PM

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I have exactly the same intersection and I can place 4. Mine are a few tiles away from the intersection.

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also, I have 8 signals

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2 per side of the intersection. This allows trains to travel both directions on both tracks.

raven elbow Jun 15, 2023, 5:55 PM

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short mirage Only three

Why?

short mirage Jun 15, 2023, 5:56 PM

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raven elbow Why?

IDK

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sorry caps

raven elbow Jun 15, 2023, 5:56 PM

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Show

short mirage Jun 15, 2023, 5:56 PM

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It just does not prop me

noble merlin Jun 15, 2023, 5:57 PM

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Too close. Pull them back

short mirage Jun 15, 2023, 5:57 PM

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with the green

short mirage Jun 15, 2023, 5:57 PM

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noble merlin Too close. Pull them back

Nope

raven elbow Jun 15, 2023, 5:58 PM

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Yes

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Move the signals back from the intersection

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5 tiles

noble merlin Jun 15, 2023, 5:58 PM

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Nopw? your'e asking for help and nope?

short mirage Jun 15, 2023, 5:58 PM

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Like this

raven elbow Jun 15, 2023, 5:58 PM

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Or more, it really doesn't matter

noble merlin Jun 15, 2023, 5:58 PM

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further.

short mirage Jun 15, 2023, 5:58 PM

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raven elbow Or more, it really doesn't matter

How does it not matter

raven elbow Jun 15, 2023, 5:58 PM

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short mirage Like this

Even more than that. Take whatever amount of space you need

short mirage Jun 15, 2023, 5:58 PM

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Dont you want it right therre

noble merlin Jun 15, 2023, 5:59 PM

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On the acute angles you need more space.

short mirage Jun 15, 2023, 5:59 PM

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because that is where the train is passing

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if you say so

raven elbow Jun 15, 2023, 5:59 PM

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Absolutely does not matter at all

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You could place them right near your stations if you wanted to

short mirage Jun 15, 2023, 5:59 PM

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This??

raven elbow Jun 15, 2023, 5:59 PM

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That works, but use chain signals, not rail signals

short mirage Jun 15, 2023, 6:00 PM

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raven elbow You could place them right near your stations if you wanted to

But what if another train is there

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Like after

raven elbow Jun 15, 2023, 6:00 PM

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Where?

short mirage Jun 15, 2023, 6:00 PM

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I could place the signals at the station right?

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why would i do that?

raven elbow Jun 15, 2023, 6:00 PM

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You shouldn't, I'm just saying you could and it won't break

short mirage Jun 15, 2023, 6:00 PM

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because what if another train is there after it leaves

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Ok

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But

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but

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hear me out

raven elbow Jun 15, 2023, 6:01 PM

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It turns your entire network except for the stations into a massive block that one train at a time can use.

short mirage Jun 15, 2023, 6:01 PM

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Why do i need the ones on the right

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oh

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wait

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I think i see

raven elbow Jun 15, 2023, 6:01 PM

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Keep in mind you need 4 pairs, not 2

short mirage Jun 15, 2023, 6:01 PM

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So you want me to add more?

noble merlin Jun 15, 2023, 6:02 PM

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2 per exit/entrance to the intersection.

raven elbow Jun 15, 2023, 6:02 PM

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noble merlin Take a gander at this setup:

I want exactly this

short mirage Jun 15, 2023, 6:02 PM

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Oh that makes sense

raven elbow Jun 15, 2023, 6:02 PM

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8 chain signals, 4 pairs of 2, one pair on each side of the intersection

short mirage Jun 15, 2023, 6:02 PM

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I was jsut going to ask about that

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I need 4 pairs

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because two trains are crossing

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This

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Wait thats an old one

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'

noble merlin Jun 15, 2023, 6:04 PM

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Only 1 train is allowed in a block, If the intersection is occupied, the signals will stop another train from entering it.

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The blocks are represented by the different colors when you hold a rail signal.

short mirage Jun 15, 2023, 6:05 PM

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Blocks are shown by the colors right?

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ok

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yeah

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OHHHHHHH

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I see

noble merlin Jun 15, 2023, 6:05 PM

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This is the right way to signal an intersection for 2 way tracks.

short mirage Jun 15, 2023, 6:06 PM

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Got ya

noble merlin Jun 15, 2023, 6:06 PM

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well ,this intersection anyway.

raven elbow Jun 15, 2023, 6:06 PM

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This is the general solution, yes

#I have a question about tracks crossing.