Who conducted the study? San Francisco County Transportation Authority
What urban area was studied? average speeds
What did the study reveal:
- Slower Morning traffic. 26% decrease in average morning speeds since 2009
- Slower Night traffic. 27% for evening traffic speeds during the same time
- More traffic jams. vehicle hour delays increased by 40,000 hours on an average day
- More road wear and tear. miles traveled on local roads jumped 630,000 miles
The Car Connection | Study: Uber, Lyft have made traffic worse in San Francisco