« The main factor that could decrease congestion—passengers sharing rides—hasn’t taken off. Researchers and analysts estimate roughly 20% to 30% of rides in major metro areas are pooled […] The biggest factor by far is the large amount of time Uber and Lyft drivers spend without any passengers, hunting for fares. A December report by the California Air Resources Board found ride-hailing cars are driving with no passengers 39% of the time; New York City estimates such cruising at 41% »
« Riders also take car trips that wouldn’t have happened before Uber and Lyft.
Mr. Schaller said in his paper that surveys in numerous cities found roughly 60% of riders in Ubers and Lyfts would have walked, biked, taken public transit or stayed home if a ride-hail car hadn’t been available »