This package contains 2 similar needy .fbx & .obj (both) 3D Scenes for developing/creating/visualizing or understanding the Infrastructure like Bridges, Buildings, Professional Constructions, Big/Small architects. The both of the objects are available in the zip file. You can create, edit, or even change orientations/ colors/axes-positions for feel how it looks like. The first one is , “Left Curve Track” – It is mainly used to connecting the edges of unfinished shapes or even standalone feel how it looks on board. The Second one is , “Track Connector” – This is very important if you try to make 3 shapes of different orientation in the one file. You can also change color according to your need. It can be connected and added to many sections in process of building/visualizing.