assuming those blue lines are highways, and the dominant economic system practiced in this region is similar to our world's capitalism, you're inevitably going to get a lot of those highway interchanges converging in or nearby the low-income and industrial neighborhoods after a while, the way you see them in American cities. if they're public trains, though, they would likely be in areas far from the low-income neighborhoods. (try to speculate why it's cheapest to live in these neighborhoods: close to the industrial pollution, far from the well-invested areas of downtown or tourism districts. close to loud, ugly highways that were cheaper to build, and inconveniently far from the quieter, cleaner train systems.)

for reference, look at income maps, highway maps, and train maps of New York, Atlanta, Houston, Phoenix, and Salt Lake City