With about 20,000 people expected to attend University of ÃÛÌÇÖ±²¥ at Boulder commencement exercises May 16 at 9:30 a.m. in Folsom Stadium, carpooling and alternative transportation are recommended for anyone planning to be on campus. The Hop shuttle and RTD buses will be on regular schedules that day. Visitors are advised to arrive early because many parking spaces will be occupied by staff and faculty during regular working hours from 7:30 a.m. to 4:30 p.m., the first day of summer hours.