We consider the problem of designing a logistics system to assure efficient urban construction processes for an innovative urban building area in the city of Vienna. We address the challenges of coordinating workers and the timely delivery and storage of material with the objective of optimizing resource-efficiency as well as reducing traffic related to construction tasks. The problem is formulated as a hierarchical optimization problem, incorporating tactical construction logistics planning as well as operational construction logistics planning. On the tactical level a time schedule of tasks for different construction phases and the corresponding material transports and storage decisions are optimized on a weekly basis, while on the operational level the daily optimization of material transports, modeled as an inventory routing problem, is addressed. A mixed-integer programming formulation of the problem on each planning level is provided and solved using CPLEX. The suggested approach is tested on realistic data from the city of Vienna. The results associated with different scenarios are analyzed to illustrate the value of the proposed approach for the design of construction logistics processes.

我们考虑设计物流系统的问题，以确保维也纳市创新型城市建筑区域的高效城市建设过程。我们致力于协调工人，及时交付和存储材料，以优化资源效率并减少与施工任务相关的交通量。该问题被表述为一个层次优化问题，其中包括战术施工后勤计划和运营施工后勤计划。在战术层面上，每周对不同施工阶段的任务时间表以及相应的物料运输和存储决策进行优化，而在运营层面上，物料运输的日常优化被建模为库存路由问题，已解决。使用CPLEX提供并解决了每个计划级别的问题的混合整数编程公式。建议的方法在来自维也纳市的真实数据上进行了测试。分析了与不同场景相关的结果，以说明所提出的方法对建筑物流流程设计的价值。