PITTSBURGH — (WPXI) – Pittsburgh Regional Transit reduced service on over 20 bus routes and the ‘T’ Sunday. According to a release PRT issued in January announcing the service adjustments, the reductions are meant to improve service reliability and on-time performance by ensuring the number of drivers needed doesn’t exceed the number of drivers available. PRT said the reduction represents about 1.5% of services. In total, 16 bus routes will see reductions. Most of the routes will be minor trip time adjustments and some frequency changes. In addition, a few midday Blue Line trips were moved to the evening to better align with rider demand. After about 5:20 p.m. on weekdays, the Silver Line now operates only between Washington Junction and Library Station. Riders traveling farther north can connect to the Blue Line at Washington Junction. A complete list of changes is available on the PRT service adjustments web page.