Superelevation at a structure changes the direction of the track axis relative to the structure, as shown below.
This means that whilst the contact wire height remains the same, the distance between the wire point and the structure, and the vertical position of the wire point will both change when there is superelevation.
As a result, this can affect the alignment of cantilevers on twin brackets, especially when there is a large superelevation. In the example shown below, two wire points with the same contact wire height, but different stagger values, have a noticeably different vertical position due to the superelevation of the track.
