An infrastructure dataset describes a network, an asset or a service location. Keep those representations separate: a transmission line is a route geometry, a substation is an asset, and an access road is part of a transport network.

Select the source and representation

Prefer the relevant operator or authority for asset identity and status. Use OpenStreetMap and other reference layers as supplementary observations. Record source date, CRS, geometry type and the meaning of fields such as voltage, road class, access and operational status.

For roads, distinguish mapped proximity from usable access. For power, keep lines, supports and substations separate. Facility points may locate a building, entrance or approximate center; they do not establish the site's footprint or capacity.

Prepare a comparable layer set

1. Transform coordinates into a common CRS without discarding the original files.
2. Standardize field names and units while retaining source attributes and IDs.
3. Check geometry validity, duplicate assets and disconnected line segments.
4. Flag missing attributes and uncertain locations instead of supplying defaults.

Connectivity requires topology and appropriate junction rules. Intersecting lines on a map do not necessarily form a connected network.

Temane sample

The map and counts below show the attached road and power files. They illustrate layer separation and symbols; they do not confirm network completeness, operating status or engineering suitability.

References and related work

OSM highway tags · OSM power tags · Transmission corridor analysis