Transmission corridor screening organizes observations along candidate alignments. It identifies places requiring investigation; it does not produce an engineered alignment or establish a permissible right-of-way.

Define the comparison

Use candidate line geometries, a declared corridor width and a suitable projected CRS. Retain route IDs and source versions. A mapped existing power line is contextual data unless its geometry has been confirmed as the candidate alignment.

Split each route into identified segments using chainage or meaningful transitions. Keep segmentation rules consistent across alternatives. Record crossings, nearby receptors, terrain indicators and access constraints for each segment.

Measure the relevant relationship

Use intersections for river or road crossings, distance for proximity, and an appropriate elevation model for slope. Record the method, units and source resolution. Count distinct crossings rather than vertices or fragmented line pieces.

Summarize route length, crossings and unresolved observations separately. If a weighted score is used, state the weights and show how the ranking changes when they vary. Unknown observations should not become zero risk.

Temane corridor context

The attached roads, power features and water layers illustrate a corridor review map. They do not establish a surveyed route, engineering clearance, flood level or acquisition boundary.

References and related work

Infrastructure sources · Receptor classification · Temane project