[Transportation] Offset parameter for Linear (and Point) Scoped Values

[Kevin Howard (brownhoward)]

Category Feedback

Has there been consideration of including an optional "offset" parameter when defining linear (and point) scoped values. The offset would specify the offset distance of the event from the Segment centerline. For example, the distance of a sign from the centerline or the offset of a sidewalk.

Linear Event:

"ext_curb": [
  {
    "type": "concrete",
    "between": [0.0, 0.5],
    "offsets", [4, 4.5]
  }
]

Point Event:

"ext_sign": [
  {
    "type": "speed_limit",
    "value": 70,
    "unit": "kmph"
    "at": 0.12345,
    "offset", 5
  }
]

This would be useful in the rendering of multiple events against the same network. For example:

[Brad Richardson (brad-richardson)]

This is a great idea! I do think these features may need to be modeled separately, as e.g. curbs can have more complex geometries that would be difficult to model with offsets alone.

Would having a separate feature and a "best effort" linear referencing to the segment be sufficient for your use cases? Offset might make sense to include for point features as well.