South San Francisco resident Ricardo Cano, 60, has been charged with two felony counts of false imprisonment, one misdemeanor count of annoying or molesting a child under age 18, one felony count of contact with a minor with intent to commit a crime and one misdemeanor count of soliciting to engage in lewd conduct.
Santa Clara County Deputy District Attorney Steve Fein said the incidents occurred about a month apart and the victims were a woman and an underage girl.
As conductor of the train, Cano used his position of authority to take the victims to secluded parts of the train.
"The type of behavior alleged in the complaint will not be tolerated," Caltrain Chief of Protective Services Dave Triolo said in a statement today.
Cano has been restricted from all Caltrain property.