Table 8—

Ridership

	(1)	(2)	(3)	(4)
Post	36.8857 (5.3940)	−0.0182 (0.0094)	0.0043 (0.0112)	0.0033 (0.0089)
Post × x			−0.0439 (0.0163)	−0.0411 (0.0164)
Satellite		Y	Y	Y
Cont. × year		Y	Y	Y
City × cal. mo.		Y	Y	Y
Climate × cont.		Y	Y	Y
Mean AOD		0.46	0.46	0.46
R 2	0.85	0.81	0.81	0.81
Number of events	42	42	42	42
Number of cities	42	42	42	42
Observations	8,415	15,863	15,863	15,863

Notes: column 1: Dependent variable is ridership per 1,000 people. Column 2: Dependent variable is mean AOD in a 10 km disk with centroid in the city center. Controls are as in Table 2 column 5, but restricted to sample with ridership data. Column 3: Same as column 2 but includes interaction of treatment with indicator for above median ridership per 1,000 people 12 m after opening. Column 4: Same as column 2 but includes interaction of treatment with indicator for above median ridership 12 m after opening. All specifications control for city fixed effects, city-specific pre-window indicators, city-specific post-window indicators, and city-specific period-0 indicators. Climate controls are pixel count and linear and quadratic terms in temperature, precipitation, cloud cover, vapor pressure, and frost days. Standard errors clustered at the city level are in parentheses.