The Roadtec RX900

I have no idea what this thing is. They were doing roadwork down by Fort Greene Park, so I assume it's some sort of asphalt/paving machine, but it was parked so I didn't see it in action. Maybe the asphalt is heated in the back, and then travels up the front part and gets dropped onto the street? I don't know, but it looked badass and interesting and a challenge to draw.

 

By the way, if you click on the image, you can make it BIGGER.