folding electric tricycle whether on the subway ?

"Why another city subway can carry folding electric bikes, Xi'an Metro does not allow ? "Recently, there are people on the microblogging asks . In this regard , Xi'an Metro said that if put into bags in the folding bike (can not use plastic wrap ) , are allowed to bring cars.
This is the name of the people on the microblogging said he had to call the customer service telephone consultation Xi'an Metro , the platform still ask , have been allowed to bring folding electric tricycle reply subway , which makes him very puzzled , " Europe , the United States , bicycles You can enter rail transportation . domestic Nanjing, Guangzhou , folding bikes can also be brought into the subway, why not allow Xi'an happens . " Some people think that some of the metro station take bus is not convenient , there are also individual public bicycle subway station , if we carry on a portable bike subway, can effectively solve the " last mile" access needs. In this regard, Xi'an subway operator Branch staff said , clearly states that " Xi'an urban rail traffic regulations " prohibit the carrying bicycles and other modes of transport stop, ride . " Prior to its enactment , the experts there was intense discussion , they think themselves sharp Electric Folding Bikes parts are more relatively more passengers on the subway , the subway if you let the bike , do not disturb other car that is also easy to scratch ," which The staff member said . "If the folding bikes are allowed on the bags in the car ," Metro staff reminded , if only wrapped with plastic bags are not allowed to take the subway.