Shared spaces and in particular pedestrians-cyclists shared infrastructures are commonly implemented in many modern cities. The co-existence of different categories of users creates several challenges that need to be addressed, while it is essential to identify which factors affect the quality of service (QOS) that both pedestrians and cyclists perceive when using such infrastructures. For this purpose, a theoretical hypothesis was formed and it was investigated through structural equation modeling (SEM), based on data from 5 shared infrastructures in the city of Thessaloniki, Greece. The results show that the qualitative attributes that are closely linked with the infrastructure have a great impact both on pedestrians’ and cyclists’ perceived QOS. More specifically, the pavement quality is essential for both road user categories, while cyclists consider also urban equipment, lighting and traffic signals to be very important. Moreover, users’ demographic characteristics and cyclists’ previous experience from shared infrastructures significantly affects their perceptions. Finally, cyclists’ behavior in shared infrastructures has an impact on the QOS that both pedestrians and cyclists perceive. The findings of this paper pave the way for a more holistic assessment of pedestrians-cyclists shared infrastructures and provide guidance in researchers and practitioners for designing and managing infrastructures that meet users’ needs.

许多现代城市普遍实施共享空间，尤其是行人-骑自行车者共享基础设施。不同类别用户的共存带来了一些需要解决的挑战，同时必须确定哪些因素会影响行人和骑自行车者在使用此类基础设施时感知到的服务质量 (QOS)。为此，基于希腊塞萨洛尼基市 5 个共享基础设施的数据，形成了一个理论假设，并通过结构方程模型 (SEM) 对其进行了调查。结果表明，与基础设施密切相关的定性属性对行人和骑自行车者的感知 QOS 都有很大影响。更具体地说，路面质量对于两种道路使用者类别都至关重要，而骑自行车的人也认为城市设备、照明和交通信号非常重要。此外，用户的人口特征和骑车人以前对共享基础设施的体验会显着影响他们的看法。最后，骑车人在共享基础设施中的行为对行人和骑车人感知的 QOS 都有影响。本文的研究结果为更全面地评估行人-骑自行车者共享基础设施铺平了道路，并为研究人员和从业者提供了设计和管理满足用户需求的基础设施的指导。骑车人在共享基础设施中的行为对行人和骑车人感知的 QOS 都有影响。本文的研究结果为更全面地评估行人-骑自行车者共享基础设施铺平了道路，并为研究人员和从业者提供了设计和管理满足用户需求的基础设施的指导。骑车人在共享基础设施中的行为对行人和骑车人感知的 QOS 都有影响。本文的研究结果为更全面地评估行人-骑自行车者共享基础设施铺平了道路，并为研究人员和从业者提供了设计和管理满足用户需求的基础设施的指导。