The Value of Preemptive Pick-Up Services in Dynamic Vehicle Routing for Last-Mile Delivery: Space-Time Network-Based Formulation and Solution Algorithms

<table class="table-group" id="tab10"><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">Non-preemptive service</td><td class="align_center">Preemptive service</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">The value of objective function (unit: $)</td><td class="align_center">−657</td><td class="align_center">−953 (−45.1%)</td></tr><tr><td class="align_left">How to handle the pick-up request</td><td class="align_center">Renege on the pick-up request at physical node 2</td><td class="align_center">Serve the pick-up request at physical node 2</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Comparison of the solution results under two service modes.</div>

Journal of Advanced Transportation

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Table 10

Table 10: The Value of Preemptive Pick-Up Services in Dynamic Vehicle Routing for Last-Mile Delivery: Space-Time Network-Based Formulation and Solution Algorithms 

Table 10 | The Value of Preemptive Pick-Up Services in Dynamic Vehicle Routing for Last-Mile Delivery: Space-Time Network-Based Formulation and Solution Algorithms 