One cause of traffic is TLC cars roaming the streets slowly looking for pickups. If Uber can show that their cars don't wander as much, that may show that Uber

One cause of traffic is TLC cars roaming the streets slowly looking for pickups. If Uber can show that their cars don't wander as much, that may show that Uber is helping traffic. But the current data set doesn't have that info, only your internal data would have it.