We are the ambassadors of the future. We did something for the next generation that we can be proud of. That really is the mark of America — progress. These are words spoken by United States Represent

Caltrain is closing one chapter and starting another this weekend. The transit agency is retiring its diesel-powered trains and making the switch to its new electric fleet. The move isn’t just good for the environment. Caltrain said riders are going to benefit from the faster and quieter trains.

Bay Area commuters are saying goodbye to diesel trains. Starting this weekend, the entire Caltrain fleet will be electric.

Caltrain opened fully electric train service between San Francisco and San Jose on Saturday to boost service, cut travel times and lower air and noise pollution. The seven-car electric trains are faster than the five- and six-car diesels they replace, trimming express service between the two cities to under an hour, Caltrain said.