臺北捷運號誌系統中，列車控制主要分兩種型式，一種運用於高運量，以傳統固定式閉塞區間形式控制，另一種運用於文湖線，採用通訊式列車控制CBTC 系統(Communications Based Train Control System)方式控制。文湖線為全臺灣首件採用通訊式列車控制CBTC 系統之專案，由於CBTC系統車站及道旁設備比傳統固定式閉塞區間之設備為簡單，且較不影響既有系統之營運運轉，故對於舊號誌系統須更新，且又要維持既有系統之運轉時，CBTC系統實為一可行方案。本文即針對此兩種列車控制系統進行比較說明以供讀者參考。

Two types of train control system are used in the Taipei MRT: One is a traditional fixed block system for the high-capacity transit system; the other, the Communications-based Train Control (CBTC) System, is for the medium-capacity transit system. The Wenhu line is the first Taipei MRT project to use the CBTC system. Using less equipment in trackside and signaling equipment rooms (SERs) than the traditional fixed block system, the CBTC system causes less impact on the commercial service during retrofitting. This paper introduces comparison between these two types of train control systems.