A track structure support component comprising: a triangular girder, the triangular girder including: a top plate longitudinally extending between a first end and a second end and having a longitudinally extending first edge, a longitudinally extending second edge, a longitudinally extending upper surface and a longitudinally extending lower surface; a first side plate longitudinally extending between a first end and a second end having a longitudinally extending first edge and a longitudinally extending second edge; and a second side plate longitudinally extending between a first end and a second end and having a longitudinally extending first edge and a longitudinally extending second edge; wherein the lower surface of the top plate abuts the first edge of the first side plate and the first edge of the second side plate and the second edge of the first side plate abuts the second edge of the second side plate to form the triangular girder, and a rail component, the rail component including: at least one rail longitudinally extending between a first end and a second end and positioned adjacent the upper surface of the top plate; characterised in that the track structure support component further comprises at least one mounting stool including a downwardly extending stool web and a mounting flange, the stool web having an upper edge abutting an outer surface of the first side plate and an outer surface of the second side plate, the stool web having a lower edge abutting an upper surface of the mounting flange. a triangular girder, the triangular girder including: a top plate longitudinally extending between a first end and a second end and having a longitudinally extending first edge, a longitudinally extending second edge, a longitudinally extending upper surface and a longitudinally extending lower surface; a first side plate longitudinally extending between a first end and a second end having a longitudinally extending first edge and a longitudinally extending second edge; and a second side plate longitudinally extending between a first end and a second end and having a longitudinally extending first edge and a longitudinally extending second edge; a top plate longitudinally extending between a first end and a second end and having a longitudinally extending first edge, a longitudinally extending second edge, a longitudinally extending upper surface and a longitudinally extending lower surface; a first side plate longitudinally extending between a first end and a second end having a longitudinally extending first edge and a longitudinally extending second edge; and a second side plate longitudinally extending between a first end and a second end and having a longitudinally extending first edge and a longitudinally extending second edge; wherein the lower surface of the top plate abuts the first edge of the first side plate and the first edge of the second side plate and the second edge of the first side plate abuts the second edge of the second side plate to form the triangular girder, and a rail component, the rail component including: at least one rail longitudinally extending between a first end and a second end and positioned adjacent the upper surface of the top plate; characterised in that the track structure support component further comprises at least one mounting stool including a downwardly extending stool web and a mounting flange, the stool web having an upper edge abutting an outer surface of the first side plate and an outer surface of the second side plate, the stool web having a lower edge abutting an upper surface of the mounting flange. at least one rail longitudinally extending between a first end and a second end and positioned adjacent the upper surface of the top plate; characterised in that the track structure support component further comprises at least one mounting stool including a downwardly extending stool web and a mounting flange, the stool web having an upper edge abutting an outer surface of the first side plate and an outer surface of the second side plate, the stool web having a lower edge abutting an upper surface of the mounting flange.