Perceived Time To Collision as Public Space Users' Discomfort Metric
<|reference_start|>Perceived Time To Collision as Public Space Users' Discomfort Metric: Micro-mobility transport vehicles such as e-scooters are joining current sidewalk users and affect the safety and comfort of pedestrians as primary sidewalk users. The lack of agreed-upon metrics to quantify people's discomfort hinders shared public space safety research. We introduce perceived Time To Collision (TTC) as a potential metric of user discomfort performing controlled experiments using an e-scooter and a pedestrian moving in a hallway. The results strongly correlate the participant's reported discomfort and the perceived TTC. Therefore, TTC is a potential metric for public space users' discomfort. Since the metric only uses relative velocity and position information, it is a viable candidate for neighboring people's discomfort estimation in advanced driver assistance systems for e-scooters and PMVs. Our ongoing research extends the results to mobile robots.<|reference_end|>
@article{jafari2024perceived,
    title={Perceived Time To Collision as Public Space Users' Discomfort Metric},
    author={Alireza Jafari and Yen-Chen Liu},
    journal={arXiv preprint arXiv:2407.09084},
    year={2024},
    archivePrefix={arXiv},
    eprint={2407.09084},
    primaryClass={eess.SY cs.SY}
}