"The way the tracks have been laid, people can go anywhere in 15 minutes by the trains " does it sound correct

“With the way the tracks have been laid, people can get anywhere by train within fifteen minutes.” That’s what comes most naturally to me.

"The way the tracks have been laid" sounds like you're describing how the railroad workers physically put down the tracks. I think what you're trying to say is something about the railroad network as a whole. For example "The extensive railroad network allows commuters to travel to their destination within 15 minutes".

I would say, "The way the tracks have been laid, people can get anywhere in fifteen minutes by train." But I can't know for sure if it flows naturally off of preceding sentences without the context of the full paragraph.

The end of the sentence sounds very awkward. I think you'd want to use 'using' rather than 'by'. You also need to start the sentence with 'With' "With the way the tracks have been laid, people can travel anywhere in 15 minutes using the trains."

Oh really i didn't know that words meant that

Unless this is some sort of civil planning text, an average person would not say "the way the tracks have been laid". It's verbose. "People can go anywhere by train in 15 minutes'

It's grammatically correct. However, the word "anywhere" is used in a general sense. In reality, it's unlikely that people can go to *any* location in 15 minutes by train, unless the area is very small. "The way the tracks have been laid, people can go to most places in 15 minutes by train" or "The way the tracks have been laid, people can travel quickly by train" would be more accurate.

Does it sound correct? Yes. There’s nothing grammatically wrong with it and we would understand you. It’s not the most natural way to word it but it’s fine. If those were the words you used to describe what’s going on it would be fine. I’d probably say “because of how the tracks were laid, people can get anywhere by train within 15 minutes” But the way you said it is 100% fine too

"by train" instead of "by the trains".

I'd replace "tracks" with "train lines" Tracks refer to a particular component of the whole thing , where are you're talking about the train line as a whole the service/available/options it can provide.

The layout of the tracks allows people to get anywhere by train in 15 minutes