1       Definition

A Route is a sequence of Way Points on an Offline Map, each associated with an Estimated Start Time and an Estimated Arrival Time. A Route may also record the Actual Arrival and Departure Times and the corresponding Places where the CAV has stopped or slowed down. The Route serves as a high-level representation of the plan followed by the CAV and the actual progression of the CAV across the Offline Map.

2       Functional Requirements

A Route shall consist of an ordered series of Way Points forming a path across a specified Offline Map. Each Way Point shall include:

  • An identifier linking it to the Offline Map.
  • Estimated Arrival and Departure Space-Time.
  • Actual Arrival and Departure Space-Time.
  • The local Road State at the Way Point.

The AMS may use Route data to:

  • Validate motion planning consistency against the Offline Map.
  • Analyse timing deviations between estimated and actual behaviour.
  • Record historical operational performance (e.g., stop locations, delays).

3       Syntax

https://schemas.mpai.community/CAV2/V1.1/data/Route.json

4       Semantics

Label Description
Header Route Header – Standard “CAV-RTE-V”
OfflineMapID ID of the Offline map the Route refers to.
RouteID Identifier of Route.
RouteData[] Route Data set
– WayPointID Identifier of a Way Point #n.
– EstimatedArrDepSpaceTime Estimated Time when Way Point #n is  is reached.
– ActualArrDepSpaceTime Actual Time when Way Point #n is reached.
– SegmentState Actual Road State information at Way Point #n.
DataExchangeMetadata Metadata supporting regulated exchange of Route information.
Trace Provenance trace including Source and Time per AIF V3.0.
DescrMetadata Descriptive Metadata