1. Tier 4. 2023. When will automatic delivery robots that solve the labor shortage in logistics start running around town?Retrieved April 11, 2024 from https://www.walkingspacedx.go.jp/post-197/
2. Ammar Al-Taie, Frank Pollick, and Stephen Brewster. 2022. Tour de Interaction: Understanding Cyclist-Driver Interaction with Self-Reported Cyclist Behaviour. In Adjunct Proceedings of the 14th International Conference on Automotive User Interfaces and Interactive Vehicular Applications. 127–131.
3. Patterns of Cyclist and Pedestrian Street Crossing Behavior and Safety on an Urban Greenway
4. Pavlo Bazilinskyy, Dimitra Dodou, and Joost De Winter. 2019. Survey on eHMI concepts: The effect of text, color, and perspective. Transportation research part F: traffic psychology and behaviour 67 (2019), 175–194.
5. External Human-Machine Interfaces: Which of 729 Colors Is Best for Signaling ‘Please (Do not) Cross’?