Exploring the Behavior-Driven Crash Risk Prediction Model: The Role of Onboard Navigation Data in Road Safety

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="1"><hr/></td></tr><tr class="thead"><td class="align_left">Variable format and subscript meaning</td></tr><tr><td class="thead-hr" colspan="1"><hr/></td></tr><tr><td class="align_left"><i>Capital letter: the category of abnormal behavior</i></td></tr><tr><td class="align_left"> L: sharp-left-lane-change behavior</td></tr><tr><td class="align_left"> R: sharp-right-lane-change behavior</td></tr><tr><td class="align_left"> A: sharp-acceleration behavior</td></tr><tr><td class="align_left"> B: sudden-braking behavior</td></tr><tr><td class="align_left"><i>Letter after the 1st underscore: the derivative feature</i></td></tr><tr><td class="align_left"> n: number of abnormal behaviors</td></tr><tr><td class="align_left"> a: the average max_accelerate during all abnormal behaviors</td></tr><tr><td class="align_left"> v: the average max_velocity during all abnormal behaviors</td></tr><tr><td class="align_left"><i>Letter after the 2nd underscore: the position relative to the accident site</i></td></tr><tr><td class="align_left"> up: within 250 m upstream</td></tr><tr><td class="align_left"> dn: within 250 m downstream</td></tr><tr><td class="align_left">e.g., B_v_dn means “average max_v of all sudden-braking within 250 m downstream of the crash coordinate”</td></tr><tr class="table-tr"><td colspan="1"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Independent variable description of each data at the given time interval.</div>

Journal of Advanced Transportation

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Table 3

Table 3: Exploring the Behavior-Driven Crash Risk Prediction Model: The Role of Onboard Navigation Data in Road Safety 