VIA Primo (stylized as pr¡mo) is a bus rapid transit service operated by VIA Metropolitan Transit in San Antonio, Texas. As of January 2019, it comprises three lines. Route 100 runs along the Fredericksburg Road corridor, from the Medical Center Transit Center, in the vicinity of the South Texas Medical Center, to Downtown San Antonio. Route 102 serves Military Drive between Kel-Lac Transit Center and Brooks Transit Center. Route 103 travels on Fredericksburg Road and Zarzamora Street from Crossroads Park & Ride to the Madla Transit Center.