[RX14]

Hunting in modern rail vehicles is largely a solved problem using axle yaw dampers and other systems. I struggle to see why BART doesnt use a standard wheel profile and buy from a rolling stock supplier with experience of designing for good ride quality.

[iggldiggl]

They do now, if you search for it there is a presentation on the transition to conic wheels somewhere out there.

[dredmorbius]

https://news.ycombinator.com/item?id=32033094

Links a 2016 article.