This week's biggest headlines in transportation:

• L.A. County will keep mask mandate at airports, on public transit, despite federal changes
• Free rides on Metro and Metrolink trains and buses this Earth Day
• California ranks fourth most bicycle friendly state in 2022
• ‘Jazz Tracks at Union Station' returns to the landmark
• Angelenos are alarmed by air pollution and extreme heat. Poll finds they want action
• Caltrans seeks public input for bicycle and pedestrian improvements
• California reveals its plan to phase out new gas-powered cars by 2035
• Metro Crenshaw-LAX line nearing completion
• Metro will open Regional Connector Transit Project this fall
• Santa Monica City Council approves Big Blue Bus fare policy changes to enhance customer experience