The OpenSCENARIO Concept Project (P2019-02), was initiated in parallel to the transfer project of the OpenSCENARIO standard to the ASAM domain. The goal of this transfer project (P2019-01) was a revision of OpenSCENARIO to ensure adherence to the ASAM standard format, leading to a major version release of v1.0.
The purpose of the Concept Project was thus to address features and adaptations to be implemented in future versions of the OpenSCENARIO standard. The concept project summary was delivered to ASAM TSC – OSC 2.0 Concept Document. This project proposal is aimed at taking the concepts specified in the concept document and continue and develop the next generation of OpenSCENARIO standard – OpenSCENARIO 2.0. A rough estimate is that the development of such a standard can be achieved within a year, aiming at release in Q2 of 2021.
Based on the considerations of the concept group, OpenSCENARIO 2.0 is proposed to be founded on the concept of a domain-specific language (see Methodology and Language Concepts chapters in the concept document), that should support all levels of scenario description, from the very abstract to the very concrete in a suitable way.The OpenSCENARIO 2.0 concepts take proven features and capabilities of OpenSCENARIO 1.0, like its event-based scenario execution model, and place them in a more general and expressive language framework, to serve as the foundation for both incremental improvements and more revolutionary enhancements.
In comparison to OpenSCENARIO 1.0, a more detailed set of actions and attributes for the relevant simulation models shall be defined to allow for a more comprehensive scenario description and to improve exchangability. This is addressed by the introduction of a domain model (see Concept document chapter: Architecture).
Beyond such improvements, the proposed domain-specific language supports the creation of more complex scenarios through flexible composition and parametrization of component scenarios in ways that allow realistic, emergent behavior to occur. This is expected to enable massive testing and verification of new, complex hardware and software systems, and their interaction with the complex environment of driving.The concept group believes that the proposed concepts and direction will enable OpenSCENARIO 2.0 to supply a step-function in its ability to describe full, complex simulations and/or tests, addressing all the required elements, and utilizing existing building blocks (like OpenDRIVE or OpenCRG).In order to leverage investments in OpenSCENARIO 1.0, a clear migration path and compatibility concept is part of the overall OpenSCENARIO 2.0 concepts, as described in Concept document: Backward Compatibility to Earlier Releases.