WOODBURY - The Long Island Rail Road (LIRR) announced today that it's adding trains on its main line into Penn Station because of increased ridership and reduced costs. Starting in November, LIRR trains will run every half-hour, instead of hourly, from Farmingdale to Penn Station on weekends. The added service will affect westbound trains from 9 a.m. until noon, and eastbound trains from 4 p.m. to 7 p.m. In March, the LIRR will add service during the week on the same line. LIRR spokesman Joe Calderone says riders will also see additional peak trains on the Port Jefferson and Long Beach lines in November. The MTA says its ridership has ticked up over the past 10 months and the increase in revenue is being poured back into services.More information from the MTA