Automatic sliding doors can be very accessible as can be used adjacent to accessible paths without guard rails.
Fully automatic sliding doors, activated by a presence and motion detector that opens door when people approach entrance are the preferred door type for all publicly accessible buildings.
Automatic doors should open early enough to ensure person approaching is aware. The sensor should ensure door is fully open when person is no closer than 1400mm away.
Automatic doors should stay open long enough to allow safe entry and exit, especially important for slow moving people such as the elderly.