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臺北捷運裝置「軌道溫度計」每日量「體溫」 確保營運安全 - 好視新聞網
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臺北捷運裝置「軌道溫度計」每日量「體溫」 確保營運安全
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臺北捷運裝置「軌道溫度計」每日量「體溫」 確保營運安全

軌道溫度計1

近日高溫炎熱,為避免軌道受到氣候影響,臺北捷運民國89年起,在淡水信義線復興崗站往忠義方向軌道下方裝設「軌道溫度計」,每天監測軌道溫度,確保捷運行車安全。

臺北捷運高運量的軌道大部分在地下路段,不會受到氣候影響,其中淡水信義線圓山站到淡水站,屬於高架平面段,軌道會直接「感受」氣候變化。臺北捷運軌道設計容許軌溫在60度以上,捷運公司參考亞洲地區及高鐵的軌溫標準,將捷運軌溫監測標準訂在攝氏50度。當「軌道溫度計」監測到軌溫超過攝氏50度,便會馬上將資訊傳遞到遠端電腦,軌道維修人員接受到後立即出發車巡軌道,檢視軌道狀況。

112年迄今共6天軌溫大於50度,其中七月到目前為止共3天軌溫大於50度,軌道維修人員當下立即出發巡視該路段軌道,確認系統營運正常。臺北捷運軌道維修人員以遠端監控方式,不但可隨時監測軌溫及大氣溫度變化,同時,針對軌溫及大氣溫度統計,分析相對變化值,亦可提供後續軌道維修參考。

至於文湖線軌道,則與高運量長焊鋼軌的設計不同,木柵段為混凝土的行駛路面,而內湖段鋼製行駛路面,臺北市政府捷運工程局在建置時,已將溫差熱漲冷縮的變化量納入設計考量,因此每段鋼軌接續的部分已預留伸縮縫,確保行車安全。

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