Hello,
Late to the game, but in the highly populated area I live in we have to truck our trash to the last landfill in the county, once that is full they're going to send it out to the desert someplace, the most efficient method is rail. The facilities would be a recycling center, including scrap metals, trash to energy, trash transfer and so on. It could include a large crusher/shredder for metal, various cranes and loaders, rotating kilns for drying, etc. Train loads scrap metal to steel mills, other metal recyclers, bundled paper to mills, trash to landfills. etc.
Maybe this is one that would be better to build myself, but would be nice to have various components to model or even imagineer our own industries. Just sayin'