The mixture recycling of reclaimed asphalt pavement (RAP) has become a widely used strategy in road maintenance. The article aimed at acquiring the optimum solutions to quantity and location distribution of RAP stockpile logistic centers over a regional highway network using a multi-factor analysis approach to further promote the development of asphalt recycling technology. Firstly, the economic radius of RAP stockpile logistic centers was calculated to determine the optimal number of RAP stockpile logistic centers according to the density of road network in the target region. Then, the proper location of each RAP stockpile logistic center was investigated employing ArcGIS buffer analysis and Floyd algorithm, with three factors taken into consideration (environment impacts, RAP material yield and consumption of each road in highway network, and the economic transport distance). Finally, upon the selection of each RAP stockpile logistic center site, the economic benefits were evaluated through cost-benefit analysis (CBA). In a case study based on the data of Jiangsu province expressway network, it suggested that an establishment of 13 RAP stockpile logistic centers will meet the recycling maintenance need of asphalt pavement over the whole highway network in Jiangsu province, contributing to a 6-year net maintenance benefit of about 70 million CNY.

再生沥青路面（RAP）的混合物回收已成为道路维护中广泛使用的策略。该文章旨在使用多因素分析方法来获取区域公路网RAP仓储物流中心的数量和位置分布的最佳解决方案，以进一步促进沥青回收技术的发展。首先，根据目标区域的路网密度，计算了RAP仓储物流中心的经济半径，确定了RAP仓储物流中心的最佳数量。然后，使用ArcGIS缓冲区分析和Floyd算法研究了每个RAP仓库物流中心的正确位置，并考虑了三个因素（环境影响，RAP物料产量和公路网中每条道路的消耗量，以及经济运输距离）。最后，在选择每个RAP仓储物流中心地点之后，通过成本效益分析（CBA）评估经济效益。根据江苏省高速公路网数据进行的案例研究表明，建立13个RAP仓库物流中心将满足江苏省整个公路网沥青路面的循环再造维护需求，有助于实现6年的净成本。维护收益约7000万元。