Green Transportation and Urban Sustainability——An Evaluation of the Effects of Pilot Policies for a Low-Carbon Transportation System
This study utilizes the pilot policy for a low-carbon transportation system as a quasi-natural experiment.Based on panel data from 282 prefecture-level cities in China from 2006 to 2021,this study employs the spatial difference-in-differences method to investigate the correlation between green trans-portation policy and urban sustainability,along with the underlying mechanism.The findings indicate that the implementation of green transportation policies can enhance urban sustainable development,with results remaining significant even after various robustness tests.Moreover,within the spatial DID framework,green transportation policies exhibit a notably positive direct impact.Heterogeneity analysis reveals that the indirect impact of green transportation policies is significantly positive for mega-cities,negative for super-large cities,and inconsequential for large and smaller cities.Additionally,the policy demonstrates a more pronounced promoting effect on the sustainability of cities in the eastern and north-eastern regions.Green transportation policies advance urban sustainability through technological innova-tion.These research findings offer fresh perspectives and insights for green transportation policies to sup-port urban sustainability.
green transportationsustainabilitylow-carbon transportation systemspatial DID