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Subways play an important part in people's daily life.More and more people take subways every day.But there are not enough seats on the subways for so many people.Therefore,they have to stand on the subways trusting in handrail pillars to keep balanced. We all know about the traditional handrail pillars ,although you can trust in but uncomfortable and unstable.The subway reliable pillars are a kind of public facilities. People can lean against it comfortably for a short rest.Pillars set up a public socket meet the needs of passengers to recharge their mobile phone or ipad.All in all ,our purpose is to provide passengers an inexpensive,conveni
Shandong university of science and technology
Qingdao, China
Tianyu Ma,
Shandong university of science and technology