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We've been studying #traffic, #environment, #economic, #equity & #policy implications of #Uber & #Lyft in US cities for the past 6 yrs

Our new video & policy brief summarize what we found

🧵1/n


@CMUVEG @CMU_EPP @CMU_Mech @CMUEngineering #VEGFindings
Our new policy brief series on Transportation Network Companies (#TNCs) like #Uber & #Lyft has bottom-line findings on

1) Effects of Uber & Lyft Entry on US Cities
2) Traffic Implications
3) Environmental Implications
4) Equity Implications

🧵2/n

cmu.edu/traffic21/rese…
1) Effects of Uber & Lyft Entry on US Cities

Uber & Lyft affect different cities differently:
⬆️ vehicle ownership in car-dependent & slow growth cities
⬇️ transit ridership most in cities with higher income & fewer children

🧵3/n

cell.com/iscience/fullt…
Read 14 tweets
Hot off the press:

Q: What changes when Uber and Lyft enter US cities?
A: Depends on the type of city.

Thread: 1/8

cell.com/iscience/fullt… @CostaSamaras @inesliaz @alehenao10 @CMUVEG @CMU_EPP #VEGFindings Image
@CostaSamaras @inesliaz @alehenao10 @CMUVEG @CMU_EPP In our new paper in @iScience_CP, we leverage the fact that Uber/Lyft entered 224 US cities by 2017 with staggered timing to isolate changes caused by Uber/Lyft from other changes over time and other differences among cities. 2/8 Image
@CostaSamaras @inesliaz @alehenao10 @CMUVEG @CMU_EPP @iScience_CP On average, people buy *more* cars when Uber/Lyft arrive, especially in car-dependent and slow-growth cities, like St. Louis, Pittsburgh and Cincinnati. 3/8 Image
Read 9 tweets

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