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Road Assistant is a public welfare design of caring for the elderly. It can ensure that the old people to cross the road safely. In the old age society, the elderly is getting more and more. Road safely issues can not be ignored. The old man walk slowly，they always can not pass the road during the green time. It means crossing the road is very dangerous for the elderly. Through the Road Assistant, the elderly ( even the disabled ) can swing card in the card readeron the both sides of the road to adjust the green
time. After receiving a card, the card reader will receive another one after 5 minutes to ensure the traffic.
Xuang Tan, China