We are seeking the ability to specify a horizontal offset from a reference when placing and modifying geometric points. Currently, options for vertical offset (delta elevation from reference) and rotation offset (from reference) are available for geometric points. Adding a horizontal offset option would facilitate the placement of traffic signs, poles, etc., as cells (and ideally parametric cells) relative to other design elements (references) such as pavement edges and verge edges modelled by corridors and linear templates.

The location of geometric points would automatically adjust according to changes in the reference element. For instance, if a pavement edge is shifted in plan (by altering corridor widths or alignment), the sign cell location would shift automatically. Extending the alignment should not affect the point location, similar to the current effects on corridors and offset strings (i.e., extending a base element of a complex).

Adding corresponding item type expressions would also enhance reporting and annotations.