How to build good paths in planet coaster

This is a tutorial on how to build complex and precise paths. I also explain the basics of course. Fun fact, I have succeeded better on every example I was showing in the video, after the recording.

Something I forgot to mention is that paths will lock the terrain into place, so make sure you do your terraforming first. On the other hand, it can also be used as a tool to keep a straight line when digging.

This tutorial covers (in no particular order):
Width and length
Angle snap
Building path on a grid
Elevation
Why you should avoid flatten terrain and auto tunnel
Visual details
Changing size without messing your current path
Connecting a grid to a non grid path
Using CTRL to avoid snapping
Continuing a path/making a new one
Using barriers and curbs
Me messing up on every example I'm trying to demonstrate

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For those who are just looking for the useful shortcuts:
Changing elevation - U for up, J for down
Avoiding snapping to surrounding elements - CTRL
Telling the game you are no longer building this current line - Right click
Angle snap - Spacebar