Greetings! I'm trying to put together a comprehensive driving guide for the Cathcart Circle route in TSW and I want to make a diagram of the Circle section and surrounding junctions. I need to draw parallel lines and curves, and they need to behave as separate lines that can have the junction lines attached, so not a double stroke as I already know how to do that. I've tried Affinity Designer, and OmniGraffle but neither offer a nice solution to draw the parallel track sections in a uniform way. I'm on macOS but have access to Linux and Windows too, or any free OS for that matter. I scribbled together what I want to re-draw as a professional quality diagram: Any recommendations would be greatly appreciated.