Bus ridership and service reliability: The case of public transportation in Western Massachusetts
Carpool to work: Determinants at the county-level in the United States
Recent trends in fatal unintentional drowning rates in the United States, 1999–2020
Changes in driver cannabinoid prevalence in 12 U.S. states after implementing medical marijuana laws
Long-term evolution of airport networks: Optimization model and its application to the United States
Bicycling renaissance in North America? An update and re-appraisal of cycling trends and policies