The first day of classes at Jefferson County Public Schools is Tuesday. District officials will be watching for any potential inefficiencies on school bus routes.The new elementary student assignment plan has many parents worried that their children will be on buses for too long. Superintendent Sheldon Berman has tasked transportation director Rick Caple with making sure the trips are no longer than an hour.More than two dozen buses have been added to the fleet and several routes have been redesigned. Caple says rides will be shorter, but it will take about two weeks to smooth out the details."We may add some," he says. "We may remove some based on projections. Again, we don't know who's going to ride the first day, so we may be making adjustments after the first two weeks of school. Hopefully we can reduce some of those routes based on who rides and who does not ride."Currently, Caple expects to use about 900 buses to transport more than 63 thousand students.Many area Catholic schools resume classes Wednesday.