This seems AI generated, it's certainly word soup with no indication there'll be a fourth colour. The original researchers (from North Caroline State University)[0] said the next step was a a scale model test bed.<p>Discussion (17 points, 10 months ago, 29 comments) <a href="https://news.ycombinator.com/item?id=39726898">https://news.ycombinator.com/item?id=39726898</a><p>Research papers:<p><i>Advancing the white phase mobile traffic control paradigm to consider pedestrians (Mar 2024)</i>[1]<p><i>White Phase Intersection Control Through Distributed Coordination: A Mobile Controller Paradigm in a Mixed Traffic Stream (Feb 2023)</i>[2]<p>[0]: <a href="https://news.ncsu.edu/2024/03/traffic-signal-pedestrians-vehicles/" rel="nofollow">https://news.ncsu.edu/2024/03/traffic-signal-pedestrians-veh...</a><p>[1]: <a href="https://onlinelibrary.wiley.com/doi/10.1111/mice.13178" rel="nofollow">https://onlinelibrary.wiley.com/doi/10.1111/mice.13178</a>)<p>[2]: <a href="https://ieeexplore.ieee.org/document/10038635" rel="nofollow">https://ieeexplore.ieee.org/document/10038635</a>