Computer simulation is currently under-utilized for the evaluation of technologies that influence driver behavior, such as driver monitoring systems (DMS). Effective models that generate virtual crashes based on crash-causation mechanisms are essential for assessing these systems, yet few exist and those that do lack thorough validation against real-world data.
A recent study highlights the need to thoroughly understand the process of generating virtual scenarios and the tools required to verify them. The research emphasizes that more work is needed to develop robust validation processes for scenario generation across all levels of crash severity. However, the development of new transformation and validation tools marks progress toward achieving accurate validation methodologies.
The study demonstrates the importance of comprehending the intricacies of scenario generation and the validation datasets used, particularly regarding potential selection bias. Current research on methods for verifying scenario generation for virtual safety assessment is scarce, indicating a significant gap that needs to be addressed for virtual simulation to provide reliable safety benefit estimates across various crash severities. Additionally, the findings suggest that behavior-based crash causation models could effectively scrutinize systems designed to influence driver behavior, such as DMS.
The study, Methodological challenges of scenario generation validation: A rear-end crash-causation model for virtual safety assessment, authored by Bärgman, Svärd, Lundell and Hartelius, underscores the need for continued research and development in this area to enhance the accuracy and reliability of virtual safety assessments. This work brings the industry closer to leveraging virtual simulation as a powerful tool for safety evaluation in vehicle development.
For further details, refer to the full study published in Transportation Research Part F: Traffic Psychology and Behaviour here.