Since 1982, federal transportation funding has been governed by the "80-20 split," which restricts the federal Department of Transportation from spending more than 20 percent of its Highway Trust Fund money on transit projects, leaving the majority of federal funding for highway projects.

Transportation election results: good news from Austin, San Antonio, Seattle, and San Francisco. Defeats in Portland and Georgia.

The study's results are especially concerning for many of communities of color in Massachusetts, where the legacies of racist planning policies expose Asian, Latinx and black neighborhoods to higher levels of tailpipe pollution.

A $1 trillion draft economic stabilization plan from the U.S. Senate provides no financial assistance for the nation's transit agencies, which have been bleeding red ink due to the COVID-19 pandemic

Add this to the city's Vision Zero agenda: tailpipe pollution may be even deadlier to city-dwellers than crashes.

More evidence that discounted transit fare for low-income households offer significant benefits to those households without necessarily contributing to peak-hour crowding.