Shenzhen Metro disruption leads to calls to ban Wi-Fi devices on subways
<p><span word="Download">Download</span></p><p><span word="A">A</span> <span word="subway">subway</span> <span word="operator">operator</span> <span word="in">in</span> <span word="Shenzhen">Shenzhen</span> <span word="in">in</span> <span word="Guangdong">Guangdong</span> <span word="province">province</span> <span word="is">is</span> <span word="investigating">investigating</span> <span word="whether">whether</span> <span word="passengers">passengers</span>' <span word="portable">portable</span> <span word="Wi">Wi</span>-<span word="Fi">Fi</span> <span word="devices">devices</span> <span word="were">were</span> <span word="the">the</span> <span word="cause">cause</span> <span word="of">of</span> <span word="a">a</span> <span word="brief">brief</span> <span word="suspension">suspension</span> <span word="of">of</span> <span word="metro">metro</span> <span word="services">services</span> <span word="on">on</span> <span word="Thursday">Thursday</span>.</p><p>"<span word="Unknown">Unknown</span> <span word="signals">signals</span>", <span word="as">as</span> <span word="the">the</span> <span word="Shenzhen">Shenzhen</span> <span word="Metro">Metro</span> <span word="Group">Group</span> <span word="put">put</span> <span word="it">it</span>, <span word="interrupted">interrupted</span> <span word="several">several</span> <span word="trains">trains</span> <span word="on">on</span> <span word="the">the</span> <span word="city">city</span>'<span word="s">s</span> <span word="Shekou">Shekou</span> <span word="line">line</span> <span word="from">from</span> 8:15 <span word="am">am</span> <span word="to">to</span> 9:30 <span word="am">am</span> <span word="on">on</span> <span word="Thursday">Thursday</span>, <span word="forcing">forcing</span> <span word="many">many</span> <span word="passengers">passengers</span> <span word="to">to</span> <span word="transfer">transfer</span> <span word="to">to</span> <span word="other">other</span> <span word="lines">lines</span>. <span word="Others">Others</span> <span word="found">found</span> <span word="themselves">themselves</span> <span word="stranded">stranded</span>.</p><p><span word="The">The</span> <span word="incident">incident</span> <span word="has">has</span> <span word="attracted">attracted</span> <span word="nationwide">nationwide</span> <span word="attention">attention</span> <span word="as">as</span> <span word="more">more</span> <span word="cities">cities</span> <span word="in">in</span> <span word="China">China</span> <span word="have">have</span> <span word="started">started</span> <span word="operating">operating</span> <span word="subway">subway</span> <span word="services">services</span>. <span word="There">There</span> <span word="has">has</span> <span word="been">been</span> <span word="much">much</span> <span word="discussion">discussion</span> <span word="as">as</span> <span word="to">to</span> <span word="whether">whether</span> <span word="portable">portable</span> <span word="Wi">Wi</span>-<span word="Fi">Fi</span> <span word="devices">devices</span> <span word="should">should</span> <span word="be">be</span> <span word="banned">banned</span> <span word="on">on</span> <span word="metro">metro</span> <span word="lines">lines</span> <span word="to">to</span> <span word="ensure">ensure</span> <span word="their">their</span> <span word="safe">safe</span> <span word="operation">operation</span>.</p><p><span word="Because">Because</span> <span word="of">of</span> <span word="interfering">interfering</span> <span word="signals">signals</span>, <span word="the">the</span> <span word="trains">trains</span> <span word="on">on</span> <span word="the">the</span> <span word="Shekou">Shekou</span> <span word="line">line</span> <span word="stalled">stalled</span> <span word="a">a</span> <span word="number">number</span> <span word="of">of</span> <span word="times">times</span> <span word="under">under</span> <span word="the">the</span> <span word="automatic">automatic</span> <span word="protection">protection</span> <span word="mode">mode</span> <span word="or">or</span> <span word="failed">failed</span> <span word="to">to</span> <span word="operate">operate</span> <span word="at">at</span> <span word="full">full</span> <span word="speed">speed</span>.</p><p><span word="Concerns">Concerns</span> <span word="rise">rise</span> <span word="over">over</span> <span word="the">the</span> <span word="Communication">Communication</span> <span word="Based">Based</span> <span word="Train">Train</span> <span word="Control">Control</span> <span word="System">System</span> - <span word="a">a</span> <span word="railway">railway</span> <span word="signaling">signaling</span> <span word="system">system</span> <span word="that">that</span> <span word="uses">uses</span> <span word="the">the</span> <span word="telecommunications">telecommunications</span> <span word="between">between</span> <span word="the">the</span> <span word="train">train</span> <span word="and">and</span> <span word="track">track</span> <span word="equipment">equipment</span> <span word="for">for</span> <span word="traffic">traffic</span> <span word="management">management</span> <span word="and">and</span> <span word="infrastructure">infrastructure</span> <span word="control">control</span> - <span word="which">which</span> <span word="may">may</span> <span word="be">be</span> <span word="affected">affected</span> <span word="by">by</span> <span word="Wi">Wi</span>-<span word="Fi">Fi</span> <span word="signals">signals</span>.</p><p><span word="Chen">Chen</span> <span word="Qi">Qi</span>, <span word="deputy">deputy</span> <span word="manager">manager</span> <span word="of">of</span> <span word="the">the</span> <span word="Shenzhen">Shenzhen</span> <span word="Metro">Metro</span>, <span word="said">said</span> <span word="on">on</span> <span word="Monday">Monday</span> <span word="that">that</span> <span word="portable">portable</span> <span word="Wi">Wi</span>-<span word="Fi">Fi</span> <span word="devices">devices</span> <span word="may">may</span> <span word="be">be</span> <span word="the">the</span> <span word="cause">cause</span> <span word="of">of</span> <span word="the">the</span> <span word="disruption">disruption</span>, <span word="but">but</span> <span word="there">there</span> <span word="has">has</span> <span word="been">been</span> <span word="no">no</span> <span word="final">final</span> <span word="conclusion">conclusion</span>.</p><p><span word="According">According</span> <span word="to">to</span> <span word="the">the</span> <span word="operator">operator</span>, <span word="the">the</span> <span word="Shekou">Shekou</span> <span word="line">line</span> <span word="and">and</span> <span word="Huanzhong">Huanzhong</span> <span word="line">line</span> <span word="in">in</span> <span word="Shenzhen">Shenzhen</span> <span word="use">use</span> <span word="the">the</span> <span word="CBTC">CBTC</span> <span word="system">system</span>.</p><p><span word="The">The</span> <span word="incident">incident</span> <span word="has">has</span> <span word="been">been</span> <span word="the">the</span> <span word="cause">cause</span> <span word="of">of</span> <span word="much">much</span> <span word="concern">concern</span> <span word="around">around</span> <span word="the">the</span> <span word="country">country</span>, <span word="as">as</span> <span word="first">first</span>-<span word="tier">tier</span> <span word="cities">cities</span> <span word="such">such</span> <span word="as">as</span> <span word="Beijing">Beijing</span> <span word="and">and</span> <span word="Shanghai">Shanghai</span> <span word="are">are</span> <span word="expanding">expanding</span> <span word="their">their</span> <span word="metro">metro</span> <span word="services">services</span>, <span word="and">and</span> <span word="second">second</span>- <span word="and">and</span> <span word="third">third</span>-<span word="tier">tier</span> <span word="cities">cities</span> <span word="are">are</span> <span word="building">building</span> <span word="their">their</span> <span word="own">own</span> <span word="subway">subway</span> <span word="systems">systems</span> <span word="at">at</span> <span word="a">a</span> <span word="brisk">brisk</span> <span word="pace">pace</span>.</p>
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