Clarification of speed definition
cc of OSC 2.0 issue: https://code.asam.net/simulation/standard/openscenario-2.0/-/issues/66
- Clarify details about definition and expected behavior of entity speed. Sometimes it is not clear if we are talking about speed in road coordinates or real vehicle speed, and this can give different results.
- Does lateral action (e.g. LaneChange) really increase the current speed (as if longitudinal and lateral speed completely independent), or it should preserve it?
- Common interpretation of
s
coordinate behavior is: vehicle moves along the road with last given longitudinal speed. However, the rate of change ofs
coordinate does not correspond to vehicle speed - it varies slightly depending on vehiclet
coordinate.