Hello!
If you follow /r/citiesskylines on reddit you may know about a small application coming out lately, called NetworX. It’s an app allowing you to make public transport diagrams! It’s still an early versions but as far as i know it will be updated (it already was at least once today, and the programme came out out yesterday). When you install it it comes with an example map of Munich (München). I find it very helpful, it’s definetely better than drawing stuff in MS Paint ;) . It is free so check it out! Link to the software’s webpage and it’s subreddit is down below.
Greetings and have fun!

Well, hi! I did this thing in open teritorry and (i put nearby city for comparition) completely broke the scale. Do i need to remove it? Because i kinda like how it looks, also it’s my first city. And other question - i know that I need a few more days to claim a country but i’m asking anyway: are “ER” “KA” “OR” and “PE” continents still in construction? If they aren’t, anyone knows when will they be allowed for building?