Underground Exit, Security Room and a Energy Booth are variations of the same model. They have same elements and use same materials and textures. There are six models in different sizes - from small energy booth and security room to big underground station exit.
Models can be used as a background models or for a car, racing game or flight simulator.
There are three materials - day, night and glass and three textures in 1024X1024 size - day and night with transparency in alpha channels and a normal bump map with specular in alpha.