Barrier-free facilities refer to service facilities that are constructed in construction projects to ensure the safety and convenience of use by disabled people, the elderly, pregnant women, children and other members of society. Including barrier-free passages (roads), escalators (stairs), platforms, rooms, restrooms (toilets), seats, Braille signs and audio prompts and communications. In daily life, there are even barrier-free handrails, bathing stools and other related life elements. facility.