> The granularity of that could really only be matched by cameras and vision models, which I expect cities couldn’t pull off as a comprehensive ML solution bein

> The granularity of that could really only be matched by cameras and vision models, which I expect cities couldn’t pull off as a comprehensive ML solution being simply too technically complex The systems I heard about in college used cameras. Lots of CCTV in cities like Paris :) Wish I remembered what it was called so I could find sauce Edit: Found better sources! Here's a paper from 1990 about real-time modelling and monitoring of traffic patterns in Paris https://www.researchgate.net/publication/317769123_Modelling_and_Real-time_Control_of_Traffic_Flow_on_the_Boulevard_Peripherique_in_Paris https://www.researchgate.net/publication/317769123_Modelling... And a paper from 2015 that explicitly mentions using cameras for traffic detection: https://hal.science/hal-01491597/document https://hal.science/hal-01491597/document