The main difficulties in intelligent traffic control are the often unknown and conflicting dependencies in the targets and requirement criteria. For the use of optimized traffic control methods a clear and consistent formulation of the control targets is crucial for the resulting functionality and performance. Inconsistent and conflicting requirements usually lead to significantly increased development and implementation efforts with reduced functionality and performance. Therefore the identification and quantification of requirement conflicts with accompanying processes for managing the resolutions is of highest priority in the early phase of the system specification.
ANDATA’s solution approach includes an integral process with underlying software tools and methods for active scenario management for development, operation, and steady improvement and adaption of “intelligent” traffic solutions. By this we mean that it must be clearly defined and specified
- in which traffic/environmental situations and scenarios
- which control actions and traffic measures are to be triggered when and how
- based on which sensors and information.
The resulting scenario catalogue is represented by according examples from real readings and from simulations. The given data then is building the basis
- for an example-based system specification in the requiements management,
- for a quick and early identification and resolution of requirement conflicts,
- for data-driven development and validation of the control functions and algorithms,
- for valid decisions within operations,
- for safeguarding of steady improvements and adaption to new situations and scenarios,
- for automated incident, anomalies and change detection.
Hereby also special simulation methods are offered for the definition and illustration of the desired control actions as well as an alternative course of action with respect to the resultant traffic values with performance criteria and sensor data. These show the dependencies and quantitative relations between the different criteria and traffic values with the different control targets and criteria.
In the ideal case the scenario catalogue is kept up to date by appropriate management within system operations. Continous alignment and extension guarantees a comprehensive coverage with relevant and representative scenarios.
Features and Advantages
- Quantitative description of the dependencies and relations between the requirement and target criteria for traffic control.
- Quick and early identification of conflicts in the requirements and target criteria, also showing options for the resolution of the conflicts.
- Direct basis for the training and calibration of the control models.
- Avoidance of extensive trial and error scenarios.
- Controlled iterative improvements in the control results and systematic build-up and maintenance of expertise about the dependencies in traffic of a given city or region.