Summer Service Change eff. 6/18 Started Thu Jun 4 Until Thu Jul 2 Routes 18/18B & 19/19B Summer Service (eff. 6/18/26): Weekdays/Weekends: UCSC loop trips will run at 30-minute peak frequency rather than 15 minutes. Routes 18B & 19B will provide service every 30 minutes to the base of campus. Trip departure and arrival times have been adjusted along the route. Weekdays: Routes 18 & 19 will operate on a single Mon-Fri schedule, not separate MWF and TTh schedules.