I decided the best place to start was in the foreground with the mysterious and seemingly useless traffic light. Considering the area is somewhat overgrown and serves more as a walking area, I decided to further incorporate the whole sky-train idea into this piece. I decided that the only way a sky train would be practical would be if it remained in the air on a set path rather than flying around wherever it pleases. In order to get up to the sky-train you'd be required to take this elevator up to a walkway and board the train from there.
The style of the elevator is mostly inspired by Chinese maintenance elevators. I incorporated a grid onto the sides with square holes and an aesthetic, yet functional design.
Instead of having a door that lifts up though, I decided to make something more pedestrian friendly and have just a lift hatch. The ceiling piece at the very top is from the rest of the scene where you see those scattered all about the scene. With this as a part of the elevator, I figure it would serve as a marking for a walkway area with stops intermittently about the city.
This is pretty much all I've worked on, but I have been planning how I want to make this and I want to try and make the whole thing procedural, using only normal maps and specular maps. I think it may just work, and I'm excited to begin that process. However, until then, I'll have to finish the block out with the exception of the actual train, which I will have to spend a lot of time trying to flesh out.
Hope you enjoy and keep a look out for more progress.