These things aren't really helpful and they clutter up the screen. You also get dozens of glowing green things popping up where you can put signals. When you hold a rail signal in your hand you get the yellow, red and blue lines which aren't what I'm interested in at the moment and weren't in TTD. I tried making some small track layouts with stops and intersections, but it doesn't work for me. It just maddeningly doesn't do what I want. Perhaps more importantly, it doesn't show me where I'm going wrong or how I should do it. Why are 98% of instructional videos for factorio posted by australians? Is this the only way to make money in Australia or Is because there is nothing else to do in the deep bush except make gaming vids? Why do Australians see an 'i' in the word yes as in 'yiss'. The signals in Open TTD work.ДЄnother question. I mention this because I've so often heard it said that 'its just like the trains in open TTD'. I played Open TTD for a couple months and found that experince to be of no help in working on the trains of Factorio. I'm talking about the lines on the tracks. What do these lines tell us? Please note that I am not talking about the lights on signals. Trains will go blasting through red and yellow lines on the tracks. I assumed the lines told me that my train would stop in a red line area and proceed with caution in a yellow area, but this is not correct.

I noticed yellow and red lines form on the tracks when I put down signals.

Factorio rail signal