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  <title>Capital Airport Express</title>
  <description>Capital Airport Express is a metro line, opened on 19 July 2008, 30.0 km long, with 5 stations.</description>
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        <key>line_opened</key>
        <value>19 July 2008</value>
      </field>
      <field>
        <key>line_last_extension</key>
        <value>31 December 2021</value>
      </field>
      <field>
        <key>line_length</key>
        <value>30.0 km</value>
      </field>
      <field>
        <key>line_stations</key>
        <value>5</value>
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        <key>line_structure</key>
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        <key>line_max_speed</key>
        <value>110 km/h</value>
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        <key>line_status</key>
        <value>In operation</value>
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    <id>concept_beijing_metro_line_shoudujichangxian</id>
    <type>concept</type>
    <title>Capital Airport Express</title>
    <slug>beijing-metro-line-shoudujichangxian</slug>
    <aliases>
      <alias>北京首都机场线</alias>
    </aliases>
    <previousSlugs></previousSlugs>
    <summary>Capital Airport Express is a metro line, opened on 19 July 2008, 30.0 km long, with 5 stations.</summary>
    <status>published</status>
    <categories>
      <category>category-transit</category>
    </categories>
    <tags>
      <tag>tag-metro</tag>
    </tags>
    <sources>
      <source>
        <id>cptond</id>
        <title>CPTOND-2025 — Wang, Liang 等 (CC BY 4.0)</title>
        <url>https://doi.org/10.6084/m9.figshare.29377427.v2</url>
        <locator>Beijing/beijing_metro_routes.shp; DBF rows 20,68; status=1</locator>
      </source>
      <source>
        <id>operator-review</id>
        <title>Beijing Subway — Wikipedia</title>
        <url>https://en.wikipedia.org/wiki/Beijing_Subway</url>
        <locator>Operators / Operation and current lines table; operator identity review only, not station coverage. Retrieved 2026-10-24; CC BY-SA 4.0; original Chinese factual summary.</locator>
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        <id>wikidata</id>
        <title>Wikidata Q847767</title>
        <url>https://www.wikidata.org/wiki/Q847767</url>
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      <source>
        <id>zhwiki</id>
        <title>北京首都机场线（维基百科）</title>
        <url>https://zh.wikipedia.org/wiki/%E5%8C%97%E4%BA%AC%E5%9C%B0%E9%93%81%E9%A6%96%E9%83%BD%E6%9C%BA%E5%9C%BA%E7%BA%BF</url>
        <locator>信息框</locator>
      </source>
    </sources>
    <createdAt>2026-10-25</createdAt>
    <updatedAt>2026-10-25</updatedAt>
    <revision>1</revision>
    <body>## Overview&#xA;&#xA;Capital Airport Express is a metro line, opened on 19 July 2008[^zhwiki], 30.0 km long[^zhwiki], with 5 stations[^zhwiki].</body>
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    <lang>en</lang>
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      <lang>zh</lang>
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    <conceptKind>metro_line</conceptKind>
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      <id>tag-metro</id>
      <slug>metro</slug>
      <name>地铁</name>
      <description>中国城市地铁线路、车站与运营机构。</description>
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  <toc></toc>
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      <updatedAt>2026-10-25</updatedAt>
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      <url>/en/concepts/beijing-metro-line-shoudujichangxian/at/1.html</url>
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      <key>concept_kind</key>
      <label>Concept kind</label>
      <value>Metro line</value>
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      <label>Aliases</label>
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      <value>31 December 2021</value>
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