Some Regional Rail riders will see their trains come more frequently during morning and evening rush hours with a new schedule starting next week. Three bus routes will also see morning trip times adjusted to maintain their connections with Regional Rail trains. Other Regional Rail lines will see changes to train numbers and departure time. Starting Monday, the 10 MARC cars will be put to use on the West Trenton and Trenton Regional Rail lines to ease crowded conditions during rush hours, SEPTA said. A portion of funds allocated to the transit system from the Pennsylvania Department of Transportation in November were used to lease train cars from MARC and Montreal’s Exo system.