A new approach to sustainable project scheduling for public institutions is proposed. The approach is based on experts’ opinions on three aspects of sustainability of project activities (human resources consumption, material consumption and negative influence on local communities), expressed by means of Z-fuzzy numbers. A fuzzy bicriterial optimization model is proposed, whose objective is to obtain a project schedule of an acceptable sustainability degree and of acceptable duration and cost. The model was inspired and is illustrated by a real-world infrastructure project, implemented in 2019 by a public institution in Poland.

中文翻译：

---

基于Z-Fuzzy数的公共机构可持续发展项目计划

提出了一种公共机构可持续项目调度的新方法。该方法基于专家对项目活动可持续性的三个方面（人力资源消耗，物质消耗和对当地社区的负面影响）的意见，并用Z-模糊数字表示。提出了一种模糊双向优化模型，其目标是获得可持续程度可接受，工期和成本可接受的项目进度表。该模型的灵感来自于一个现实世界的基础设施项目，该项目由波兰一家公共机构于2019年实施。