Charlene Bullock, a Wake County school system bus driver for Southeast Raleigh High School is all smiles as she makes it through pylons during the "serpentine" test at the North Carolina State fairgrounds in Raleigh, N.C. on April 27, 2016.
Charlene Bullock, a Wake County school system bus driver for Southeast Raleigh High School is all smiles as she makes it through pylons during the "serpentine" test at the North Carolina State fairgrounds in Raleigh, N.C. on April 27, 2016. Chuck Liddy cliddy@newsobserver.com
Charlene Bullock, a Wake County school system bus driver for Southeast Raleigh High School is all smiles as she makes it through pylons during the "serpentine" test at the North Carolina State fairgrounds in Raleigh, N.C. on April 27, 2016. Chuck Liddy cliddy@newsobserver.com