{
  "source": "src/assets/junction-waterways.geojson (OpenStreetMap contributors, ODbL; retrieved 2026-09-29)",
  "junction": {
    "lat": -25.7460472,
    "lon": 28.2013841,
    "osm_node": 672463018
  },
  "method": "Local equirectangular projection around the junction. General direction = bearing from the junction to the first mapped vertex at least 200 m away in a straight line. Rounded to whole degrees.",
  "ways": [
    {
      "osm_way_id": "205544778",
      "name": "Apies River",
      "relationship": "approaches from the south",
      "general_bearing_deg": 211,
      "mapped_length_m": 473
    },
    {
      "osm_way_id": "687278457",
      "name": "Walker Spruit",
      "relationship": "approaches from the south-east",
      "general_bearing_deg": 137,
      "mapped_length_m": 324
    },
    {
      "osm_way_id": "205544778",
      "name": "Apies River",
      "relationship": "continues toward the north",
      "general_bearing_deg": 349,
      "mapped_length_m": 528
    }
  ],
  "derived": {
    "angle_between_approaches_deg": 74,
    "approach_bisector_bearing_deg": 174,
    "continuing_path_offset_from_straight_through_deg": 5,
    "design_rotation_deg": -174
  },
  "mark_digital_reconstruction": {
    "meeting": [
      247.1,
      256.2
    ],
    "armFromVertical": 43.1,
    "armSpread": 86.2,
    "armLength": 277,
    "armWidth": "about 65–75 (arms taper)",
    "stemWidth": 76,
    "gaps": {
      "armToArm": 18,
      "leftArmToTriangle": 22,
      "rightArmToTriangle": 24,
      "armToStem": 18
    },
    "stemAxisX": 246
  },
  "boundary": "Open community map data, not surveyed hydrology. The upright mark is a design decision; it is not a tracing of these rivers."
}