Go to CAV-TEC V1.1 Data Types

Definition
Functional Requirements
Syntax
Semantics
Conformance Testing
Performance Assessment

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

Table 1 – Semantics of the Route Data Type

Label
Description
Header Route Header – Standard “CAV‑RTE‑Vx.y”.
MInstanceID Identifier of the M-Instance (Virtual Space) associated with this Route.
UEnvironmentID Identifier of the U-Environment (Real Space) associated with this Route.
RouteID Unique identifier of this Route instance.
RouteTime Time this Route was produced.
RouteSpaceTime Space/Time where/when this Route applies.
OfflineMapID Identifier of the Offline Map to which this Route refers.
RouteSegments[] Ordered sequence of route segments, each defined by two Way Points.
    – WayPoint1ID Identifier of the starting Way Point of this segment on the Offline Map.
    – WayPoint2ID Identifier of the ending Way Point of this segment on the Offline Map.
    – EstimatedArrDepSpaceTime Estimated arrival and departure Space/Time at WayPoint2ID.
    – ActualArrDepSpaceTime Actual arrival and departure Space/Time at WayPoint2ID.
    – SegmentState Road State at this segment at the time of traversal.
DataXMData MPAI-PTF Data Exchange Metadata providing provenance, authorisation, legal, security, and confidence information associated with this Route in a trusted data exchange context.
DescrMetadata Human-readable descriptive metadata of the Route (plain text, max 2048 characters).

5      Conformance Testing

A Data instance conforms with Route (CAV‑RTE) if:

  1. The Data validates against the Route’s JSON Schema.
  2. All Data in the Route’s JSON Schema:
    1. Have the specified type.
    2. Validate against their JSON Schemas.
    3. Conform with their Data Qualifiers.

6      Performance Assessment

Not part of this specification.

Go to CAV-TEC V1.1 Data Types