Ah I see. Yes it's the same for meThe top part of the underground road works well, because it is connected to the mainroad, which then take you into the city. It looks right. The opposite end of the underground road currently takes you into the back of one of my airport buildings. I will now need to correct this by re-jigging many of my airport buildings and adding connected roads for it to look right. I look forward to this, at some point.
Regards
Captain WH Rollins