name Track with concrete sleepers
id concrete_sleeper_track

//model name -> angle difference to previous segment (defaults to 0)
model concrete_sleeper_track.obj
model concrete_sleeper_track_slight_left.obj -2
model concrete_sleeper_track_slight_right.obj 2

//texture name -> model name (optional)
texture concrete_sleeper_track.png

//length of the segment
length 1.0