Rapid and Precise Measurement Method for Track Static Geometry of Large-Span Bridge Railway

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Max absolute value (mm)</td><td class="align_center">Average (mm)</td><td class="align_center">Standard deviation (mm)</td><td class="align_center">Relative accuracy</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Before fusion</td><td class="align_center">24.0</td><td class="align_center">3.1</td><td class="align_center">6.1</td><td class="align_center">31.9</td></tr><tr><td class="align_left">After fusion</td><td class="align_center">−4.5</td><td class="align_center">−0.8</td><td class="align_center">1.1</td><td class="align_center">2.6</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Statistical parameter changes of residuals before and after fusion in elevation direction.</div>

Structural Control and Health Monitoring

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Table 3

Table 3: Rapid and Precise Measurement Method for Track Static Geometry of Large-Span Bridge Railway 