World population is changing to become an aging society in regions such as Europe and North America. Thailand too is becoming an aging society. The data from the national statistics office forecasts that in the next 10 years Thailand will become a complete aging society. It is time to address this situation, which not only concerns the income or health of the elderly, but also about how they can live comfortably in an aging society. Universal design principles could help them to live better. It can aid accessibility to all places and allow ...