项目边缘成本是指在项目部管理运作过程中,并非固定成本或可变成本的因素,给现场员工的情绪产生直接或间接的影响而引发的负面效应,导致有形或无形地影响到施工经营正常进行的边缘性动因。主要包括发现问题成本、内生机制成本、员工心理成本、技术发散成本、三方互动成本、气象 Project marginal cost refers to the project management and operation of the process, not fixed costs or variable costs, to the site staff emotions have a direct or indirect impact caused by the negative effects, resulting in a tangible or intangible impact on construction management The normal motivation for the marginalization. Including the discovery of the cost of the problem, the cost of endogenous mechanisms, staff psychological costs, technology divergence costs, interactive costs of the three parties, weather