That’s nice. I will review my lines when I get home, in 2-3 hours. :p
Do you have constant 4 + signs for your cities? I usually have those right after I expand lines etc. and then it stops again. Lately only way I could get 500 people cities to grow, was to make tram lines to/from smaller neighbour cities.
Btw for lines connecting cities, I assume if I have proper local transportation, it is enough to have the stations at city edge, it’s not necessary to carry people to the center, right?