UPDATE 8/23/17: The motorways themselves are done in both cities, although I worked off of two existing, half-built, half-under-construction highways in Darsons. Still, I have been working on them non-stop for three days, and I’m glad to say that these cities’ motorways have been finished.
My plans have been sorta like Robert Moses’, without destructing neighborhoods. Ayala is modern, so it will demolish roads in the central city, but the cars still can use the new HUGE motorway to get there without having to walk more than a third of a mile. (Seeing distance)
The Ayala Thruway has further reached Kalabag, as those cities neighbor each other. I didn’t want to just make a 2-mile long stretch of a HUGE UNDERGROUND THRUWAY, so I extended it into Kalabag, and revamped the motorways to act like an outer beltway. (more like inner towards the top though)
Darsons was not 100% successful. I’ve changed plans over and over again, renaming and referencing the roads differently each time. But, I eventually figured it all out. Basically, there are two beltways: 1. The Inner Beltway 2. The South Beltway The South Beltway was called ‘I-706S,’ for South I-706. They put a cardinal direction in interstate numbers sometimes, so I did it this time. It was the original beltway, but when I saw Darsons as a whole, that’s where plans got out of whack.

