I’m not a fan of Uber actually, but I’m also clear headed about the cause of traffic. The data in the study you linked doesn’t show the opposite. It just says a

I’m not a fan of Uber actually, but I’m also clear headed about the cause of traffic. The data in the study you linked doesn’t show the opposite. It just says about half the VMT of a ride hail is without a passenger. It makes no claims about the total effect on VMT which would benchmark against, eg, time spent parking, substitution effects, etc.