Table 1.

Variable definitions and descriptive statistics.

Variable	Definition	Type	Obs.	Mean	Std. Dev.	Min	Max
Dependent variable
Rideshare	Frequency of ridesharing use in the past 30 days	Ordinal	226,824	0.301	1.732	0	99
Independent variable
Ptused	Frequency of public transit use in the past 30 days	Ordinal	226,824	0.879	4.297	0	240
Control variables
Personal demographics
Female	If respondent is female	Dummy	226,824	0.531	0.499	0	1
Age	Respondent’s age (years)	Ordinal	226,824	53.022	18.256	16	92
Education	Respondent’s education level: 1 = less than high school, 2 = high school/General Educational Development (GED), 3 = some college/associate, 4 = bachelor, 5 = graduate/professional	Ordinal	226,824	3.330	1.185	1	5
White	If respondent’s race is white	Dummy	226,824	0.825	0.380	0	1
Worker	If respondent is a worker	Dummy	226,824	0.549	0.498	0	1
Driver	If respondent is a driver	Dummy	226,824	0.920	0.271	0	1
Household socio-economic characteristics
HHincome	Household income level: 1 = less than $10k, 2 = $10k–$15k, 3 = $15k–$25k, 4 = $25k–$35k, 5 = $35k–$50k, 6 = $50k–$75k, 7 = $75k–$100k, 8 = $100k–$125k, 9 = $125k–$150k, 10 = $150k–$200k, 11 = $200k or more	Ordinal	226,824	6.303	2.588	1	11
Hhvehcount	Number of vehicles in the household	Ordinal	226,824	2.240	1.238	0	12
Homerent	If the house is a rental	Dummy	226,824	0.211	0.408	0	1
Geographic characteristics at the home location
Pdensity	Population density (persons per square mile) in the census block group of household’s home location in log	Continuous	226,824	7.150	1.758	3.9	10.3
Rail	If the home location has rail service	Dummy	226,824	0.157	0.364	0	1
Urban	If home is located in an urban area	Dummy	226,824	0.766	0.424	0	1
Seasons
Spring	March, April, or May	Dummy	226,824	0.205	0.404	0	1
Summer	June, July, or August	Dummy	226,824	0.259	0.438	0	1
Fall	September, October, or November	Dummy	226,824	0.267	0.442	0	1
Winter	December, January, or February	Dummy	226,824	0.270	0.444	0	1