Discussed a couple of days ago in the context of average Uber speeds in London and other congested cities [1]. [1] https://news.ycombinator.com/item?id=2011308

Discussed a couple of days ago in the context of average Uber speeds in London and other congested cities [1]. [1] https://news.ycombinator.com/item?id=20113084 https://news.ycombinator.com/item?id=20113084