Comprehensive Risk Evaluation in the Long-Term Operation of Urban Subway Based on Multiple Indices

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Value of TRL</td><td class="align_center">Level of total risk</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">1.0 ≤ TRL ≤ 2.4</td><td class="align_center">Low (level 1)</td></tr><tr><td class="align_left">2.4 &lt; TRL ≤ 3.7</td><td class="align_center">Moderate (level 2)</td></tr><tr><td class="align_left">3.7 &lt; TRL ≤ 5</td><td class="align_center">High (level 3)</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Mathematical Problems in Engineering

tab7

Table 7

Table 7: Comprehensive Risk Evaluation in the Long-Term Operation of Urban Subway Based on Multiple Indices 