ConstIt combines trafficIncidentRequestCategories, which you can both send as
filters and receive in responses, with the tile-only categories 'animals-on-road'
and 'narrow-lanes'. Those two appear on vector-tile features but never in an
Incident Details response or filter. Use this list for categories you receive, and
trafficIncidentRequestCategories for categories you send to the Incident
Details API as a categoryFilter input.
All possible traffic incident categories.