This 3D model was originally created with Sketchup 13 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Detailed subway type tracks, complete with third rail, drainage area, partial ties and rails. This is modled on the tracks used in the New York subway system, which normally have a center area for water to drain into, a thrid rail with a wooden guard ties of this style