Impact of Tunnel Groups on Pupil Diameter of Drivers on Mountainous Freeway in China: A Real-World Driving Study

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center" colspan="2">Length (m)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left" rowspan="2">PPDV (%)</td><td class="align_center">Coefficient</td><td class="align_center">Sig.</td></tr><tr><td class="align_center">−0.764</td><td class="align_center">0.010</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Percentage correlation analysis of connecting zone length (<i>L</i><sub><i>C</i></sub>) and PPDV.</div>

Journal of Advanced Transportation

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Table 5

Table 5: Impact of Tunnel Groups on Pupil Diameter of Drivers on Mountainous Freeway in China: A Real-World Driving Study 