[問題] 華山到台北的地下化隧道
wiki上寫說
"華山-萬華間地下化,單座雙軌隧道。"
而在http://blog.xuite.net/ticket0610/notebook/16351473
這位先生的網誌裡 也只有台鐵一條高鐵一條(第一張photo)
所以請問
華山到萬華間 原本是只有台鐵一個隧道兩條線
後來有了高鐵 撥一條給高鐵
變一個隧道 一條台鐵一條高鐵?
那這樣單線雙向夠用嗎?
wiki和網誌的說明小弟真的看不懂
麻煩各位前輩幫我解惑 謝謝大家
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