The partial opening of Tioga during the past week, with one-hour morning and afternoon windows is something new. While cars can't stop on the transit (except to drop-off or pick-up backpackers with permits), the windows have been heavily used by visitors and locals moving between eastern and western California.
NPS has generously allowed bicycles to ride Tioga during all daylight hours. This is one of the best bike rides on earth and is a terrific national park experience. Birds, running water, and the purr of bike tires - so nice!