From Robert Whitcomb’s “Digital Diary,’’ in GoLocal24.com.

The Rhode Island Public Transit Authority has added three electric buses to its fleet. Bravo! One small step against global warming. For some people of a certain age, the buses are a reminder of how much of our urban public transportation used to be electric, in the form of trolleys.

Meanwhile, we’d better deal with the fact that the advent of millions of self-driving vehicles, hopefully electric, will probably worsen traffic congestion by encouraging more single-passenger driving and even no-passenger driving, with many vehicles being used to deliver stuff. We need much more MASS TRANSIT, not more vehicles, roads and parking lots.

As a sign of the hunger for expanded mass transit, consider that crowding has gotten so bad on Connecticut’s new CTrail line, between Springfield, Mass., and New Haven, that the state and Amtrak are scrambling to make more trains available. Some of the crowding is caused by a surprisingly large number of college students using special passes that gives students at participating institutions unlimited access to public transportation in the Nutmeg State.

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