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You require assistance with a complicated problem or need to solve a certain research question?
ITflowS – User-Centered Traffic Flow Optimization Using ITS Infrastructure Data
Methology
The project was based on a user-centred approach. The aim was to identify the specific challenges and needs of vulnerable road users, particularly cyclists, at two crossroads in Graz. Based on these insights, prototype solutions were developed that combined human-system interaction with innovative C-ITS technology.
Based on these insights, prototype solutions were developed that combined human-system interaction with innovative C-ITS technology.
To achieve this, cameras and LIDAR sensors were installed at intersections.
These sensors collected traffic data, which was transmitted via a Road Side Unit (RSU) to an On-Board Unit (OBU) mounted on a bicycle.
The data was then analysed using a custom-built smartphone app, which assessed collision risks and provided two types of feedback:
Results
One of the key goals was to compare the effectiveness of the two types of feedback. A user study involving 14 cyclists was conducted.
The results showed that C-ITS systems can significantly improve cyclists’ awareness and risk perception, helping to prevent potentially dangerous situations on the road.
The study also found that acceptance of such systems depends greatly on their context sensitivity, predictability, and user-friendliness.
The human-system integration approach that was adopted proved to be effective and offers a strong foundation for future C-ITS development.
Conclusion
ITflowS demonstrated that combining user-centred design with modern sensor technology and smart warning systems can enhance the safety of vulnerable road users. The developed concepts can be transferred to other urban intersections and help to build trust in C-ITS solutions overall. The extended human-system integration approach from ITflowS is now available for further research and development.
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