Fig. 2: Dynamic treatment effects in the city centre.

Dynamic treatment effects are estimated daily following the policy intervention. a,b, We report estimates from the Midtown Experiment (a) and the MARTA experiment (b), each beginning with the day after the policy implementation. We report an effect each day beginning the day after the policy implementation, 10 August 2019 through 22 September 2019. The upper and lower 95% confidence intervals are shown by the shaded regions above. We find that peak congestion effects occur within the first week following the policy implementation for both the Midtown and MARTA experiments, likely reflecting a temporary reversion to travel in personal vehicles as commuters adjust to the micromobility ban.