This is great, can't wait for you to release it! Great job!

Yes, road and railway (I created versions from one railway track to four railway tracks) chackpoint in one building. Also road and railway are perfectly aligned to grid. To be more realistic, it needs one worker, electricity, water and sewage. Of course, it works with or without worker.

Oh wow, That's even better! Do I understand this correctly, there'a both road and rail connection on one checkpoint? And you can utilize both at the same time? If so, that's exactly what I was missing, awesome work! I will definitely download and use it!