Urban planners, policy makers and transport operators constantly search for ways to improve the environment of transport infrastructures. “Greening” solutions, such as green roofs and walls, are among the potential measures to achieve the Sustainable Development Goals.

The integration of greenery in the urban environment, including transport infrastructures, is shown to provide positive Net Present Values and to have several environmental, economic, and social benefits. Since users are forced to walk and wait in urban interfaces for a certain time, “greening” solutions may contribute to improve their psychological well-being and comfort. However, there is little evidence on the perceptions and the value attributed by users to these solutions.

This paper intends to provide a unique perspective on users’ perception and willingness-to-pay for comfort and “greening” solutions in transport interfaces. The proposed methodology aims to evaluate the feasibility of several scenarios, based on a questionnaire survey taken amongst railway users. The process starts with a pilot survey and preliminary interviews, followed by the definition of the target population and with both “in-situ” and online survey campaigns. The case-study is developed at Entrecampos Station, Lisbon, Portugal, where the survey was taken by 146 users.

Results have shown that although users might attribute some value to having greener spaces in public transport interfaces, their willingness-to-pay is low and they show a preference for improvements such as more seats or safe and comfortable waiting areas. These conclusions may assist decision-making processes regarding infrastructure systems and urban greening.

城市规划者，政策制定者和运输运营商不断寻找改善运输基础设施环境的方法。“绿色”解决方案（例如绿色屋顶和墙壁）是实现可持续发展目标的潜在措施之一。

绿化在包括运输基础设施在内的城市环境中的整合显示出可提供正的净现值，并具有多种环境，经济和社会效益。由于用户被迫在城市界面中行走和等待一段时间，因此“绿化”解决方案可能有助于改善他们的心理健康和舒适感。但是，很少有证据表明用户对这些解决方案的看法和价值。

本文旨在提供一个独特的视角，以了解用户对交通接口中的舒适度和“绿化”解决方案的支付意愿和支付意愿。所提出的方法旨在基于对铁路用户的问卷调查，评估几种方案的可行性。该过程从试点调查和初步采访开始，然后是目标人群的定义以及“现场”调查和在线调查活动。该案例研究是在葡萄牙里斯本的恩特尔坎波斯站（Entrecampos Station）开发的，该调查由146位用户进行。

结果表明，尽管用户可能会认为在公共交通界面中拥有更绿色的空间会带来一些价值，但他们的支付意愿很低，并且他们倾向于改善座位或增加安全舒适的等候区。这些结论可能有助于有关基础设施系统和城市绿化的决策过程。