交通运输系统工程与信息 ›› 2024, Vol. 24 ›› Issue (6): 232-241.DOI: 10.16097/j.cnki.1009-6744.2024.06.020

• 系统工程理论与方法 • 上一篇    下一篇

基于规则判别的末端配送停留点识别与出行链特征

姜晓红1,陈庆炜1,严亚丹*2,韩兵3,4,李家伟1   

  1. 1. 南京林业大学,汽车与交通工程学院,南京210037;2.郑州大学,土木工程学院,郑州450001; 3. 南京大学,建筑与城市规划学院,南京210093;4.苏州规划设计研究院股份有限公司,江苏苏州215006
  • 收稿日期:2024-08-26 修回日期:2024-09-22 接受日期:2024-09-24 出版日期:2024-12-25 发布日期:2024-12-18
  • 作者简介:姜晓红(1985- ),女,江苏常州人,副教授,博士。
  • 基金资助:
    国家自然科学基金 (52302392)。

Rule-based Discriminative Identification and Travel Chain Characterization of Last-mile Delivery Stops

JIANG Xiaohong1,CHEN Qingwei1,YANYadan*2,HAN Bing3,4,LI Jiawei1   

  1. 1. Automotive and Transportation College, Nanjing Forest University, Nanjing 210037, China; 2. School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China; 3. Department ofArchitecture and Urban Planning, Nanjing University, Nanjing 210093, China; 4. SuzhouAcademy of Urban Planning and Design Co Ltd, Suzhou 215006, Jiangsu, China
  • Received:2024-08-26 Revised:2024-09-22 Accepted:2024-09-24 Online:2024-12-25 Published:2024-12-18
  • Supported by:
    NationalNaturalScienceFoundation of China (52302392)。

摘要: 响应需求的末端配送方案可显著提升顾客满意度,识别并提取末端配送快递三轮车配送停留点特征是分析配送时空分布和动态需求的基础。因此,本文提出结合兴趣点(POI)与停留时长规则的停留点识别方法。首先,利用POI信息和瞬时速度初步筛选快递三轮车轨迹数据;然后,引入停留时长阈值作为二次筛选条件;最后,合并临近的聚集点,形成完整的停留点集。采用人工校验识别结果的准确性,并借助熵率法计算停留链的熵率,量化评估不同识别方法的精确度。以苏州市顺丰速运快递网点的快递三轮车配送轨迹数据为实证对象,将所提出的方法与货运卡车停留点识别中常用的基于密度的聚类算法(Density-BasedSpatialClusteringofApplications with Noise, DBSCAN)进行对比分析。结果表明,DBSCAN算法易将交通信号灯等待误判为配送停留点,而本文所提出的方法则有效规避了该问题,实现高达98%的精确率和召回率;同时,熵率法的应用进一步验证了所提方法在准确率上的有效性。在此基础上,扩大研究范围并识别配送停留点后,分析快递三轮车的出行链与配送时空分布特征。结果表明,8:00左右的高峰期配送车辆数显著多于16:00左右的高峰期;住宅区为配送热点,车辆数最多,且出行距离和工作时长最长;酒店类配送呈现停留时长较短的特点;此外,停留点空间分布亦揭示了部分配送距离偏远的情况。

关键词: 综合运输, 货物运输组织, 停留点识别, 规则判别, 快递三轮车, 末端配送, 出行链特征

Abstract: Responding to demand of last-mile delivery programs can significantly improve customer satisfaction. Identifying and extracting characteristics of stopping points made by last-mile express tricycle deliveries is fundamental to analyze spatial-temporal distribution patterns and dynamic demand. This paper proposes a stopping point identification method by combining Point of Interest (POI) data with stopping time rules. The POI information and instantaneous speeds are utilized to screen express tricycle trajectory data. The stopping time threshold is introduced as secondary filtering criteria. The neighboring aggregation points are merged to create a complete set of stopping points. The accuracy of the identification results is verified through manual verification, and the entropy rate of the stop chain is calculated using the entropy rate method to quantitatively evaluate the accuracy of different identification methods. Taking trajectory data of express tricycles from Shun Feng Express courier outlets in Suzhou city as the empirical object, this paper compares the proposed method with the commonly used the density-based spatial clustering algorithm of applications with noise to identify stopping points of cargo trucks. The results show that the DBSCAN algorithm is prone to misidentifying traffic signal waiting as a delivery stop, while the proposed method effectively avoids this issue, achieving both precision and recall rates of up to 98%. Furthermore, the application of the entropy rate method further validates the effectiveness of the proposed method in terms of accuracy. On this basis, by expanding the research scope and identifying distribution stopping points, this paper analyzes the travel chains and spatial-temporal distribution characteristics of express tricycles. The results indicate that the number of delivery vehicles during the peak period around 8:00 am is significantly higher than that during the peak period around 4:00 pm. Residential areas are hotspots for distribution, with the highest concentration of vehicles, the longest travel distances, and the longest working hours. Hotel deliveries, on the other hand, exhibit shorter stopping times. Additionally, the spatial distribution of stopping points also reveals the delivery conditions to the remote locations.

Key words: integrated transportation, freight transportation organization, stopping point identification, rule discrimination, express tricycles, last-mile delivery, travel chain characteristics

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