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I am looking for a way to create points along lines (roads) at set elevation differences (0.5m height differences) using QGIS.

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    Well what data do you have? Do you have a DEM? What resolution? – Liam G Oct 20 '19 at 7:19
  • I am running QGIS 3.2.1. I am not using a DEM, I have line strings that have z-values. I essentially need to determine points along those lines that differ 0.5m in elevation one after the other. – drew3 Oct 20 '19 at 15:01
  • OK we still need more info on your data model. Does each line segment have a single z value that represents the entire line? Is each line split at each vertex and have a z value for each vertex in the attribute table? – Liam G Oct 21 '19 at 7:29
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  1. Compute contour lines from your elevation raster
  2. Intersect your road layer with the contour lines using the line intersection tool.

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