Establishment of Track Quality Index Standard Recommendations for Beijing Metro

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/ddns/volume-2015/473830/figures/473830.fig.003a.svgz" name="473830.fig.003a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Gauge</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/ddns/volume-2015/473830/figures/473830.fig.003b.svgz" name="473830.fig.003b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Alignment</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/ddns/volume-2015/473830/figures/473830.fig.003c.svgz" name="473830.fig.003c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Surface</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/ddns/volume-2015/473830/figures/473830.fig.003d.svgz" name="473830.fig.003d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Cross level</td></tr><tr class="fig-image" id="e"><td><object data="https://static.hindawi.com/articles/ddns/volume-2015/473830/figures/473830.fig.003e.svgz" name="473830.fig.003e" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(e) </b>Twist</td></tr></table>

<div>Distributions of track quality quantities for track quality parameters.</div>

Discrete Dynamics in Nature and Society

fig3

Figure 3

Figure 3: Establishment of Track Quality Index Standard Recommendations for Beijing Metro 