slv.measurements.mobile.network#

The TRAX network and its yards: line geometry, staged points, storage polygons, shed footprints, and the route-buffer filter used by the GPS merge.

Group-data source: UTA_TRAX.geojson (the lines) under $LINGROUP_DATA_DIR/spatial/transportation/light_rail. Packaged here: the yard polygons jrrsc.geojson and mrsc.geojson (storage_locations) and the shed footprints trax_depots.geojson (both data-derived except JRRSC’s yard, which is hand-drawn). Staged points along the lines are cached under $SLV_USER_DATA_DIR/trax.

Attributes

`UTM12`	UTM zone 12 N, the metric CRS used for distances and buffers.
`storage_locations`	Storage yards where the trains sleep, name -> packaged geojson (one polygon each).

Functions

`filter_near_routes`	Keep GPS points within `buffer` (in `routes`' CRS units) of any route.
`get_geodf`	Resolve a geometry argument: a GeoDataFrame, a path or packaged file to read, or `False` / `None` for no geometry (returns `None`).
`group_dir`	`$LINGROUP_DATA_DIR`, the lin-group data library.
`load_depot_footprint`	Packaged shed footprints at the service centers (`trax_depots.geojson`).
`load_storage_polygons`	All storage yards in `storage_locations`, one row each with a `name`.
`load_trax_lines`	The TRAX lines (`UTA_TRAX.geojson` under `$LINGROUP_DATA_DIR`), one row per line with its letter in `line`.
`load_trax_points`	Points every `spacing` m along the TRAX lines, with the lines they serve.
`user_dir`	`$SLV_USER_DATA_DIR`, where slv keeps derived data and caches.