Maintenance has a critical role in the transportation industry, as it is the guarantee for public transportation in providing continuous and safe services. The current study aims to explore the maintenance practices employed by public transport sector and investigate the environmental impact of the common maintenance practices. A comprehensive review of the state-of-the-art literature related to maintenance practices and environmental sustainability key performance indicators was conducted. Then interviews with experts and practitioners in the buses maintenance domain were conducted. After that, a cross-sectional survey to validate the literature and interview findings was performed among a sample of 132 bus maintenance practitioners working in Dubai transport sector. The results revealed that preventive maintenance, corrective maintenance, and condition based maintenance are the most commonly practiced in bus maintenance. Furthermore, it was found that waste, noise, and emission measures should be considered while selecting the maintenance practices. Eventually, the results exhibited that Preventive Maintenance is the right maintenance practice when considering waste and noise pollution as environmental selection criteria. On the other hand, Corrective Maintenance is the suitable maintenance practice when considering the emissions as environmental selection criteria. It is very important to identify the most important environmental criteria when selecting the right maintenance practice. It is obvious that the selection of the proper maintenance practice should be aligned with the environmental sustainability requirements. We consider this new practice, that is to say, the environmental sustainability based maintenance as a unique maintenance strategy that can be considered not only in automotive maintenance, but also in different contexts involved in maintenance phase of different physical assets. It is recommended that this study be extended to study other sustainability aspects of maintenance practices such as the financial aspect and service availability aspect in addition to study other transportation modes such as taxi vehicles, metro, and marine vessels.

维护在运输行业中起着至关重要的作用，因为它是公共交通提供连续和安全服务的保证。当前的研究旨在探索公共交通部门采用的维护实践，并研究通用维护实践对环境的影响。对与维护实践和环境可持续性关键绩效指标相关的最新文献进行了全面回顾。然后，对公交车维修领域的专家和从业人员进行了采访。此后，在迪拜交通运输行业的132名公交车维修从业人员样本中进行了横断面调查，以验证文献和采访结果。结果表明，预防性维护，纠正性维护，基于条件的维护是公交车维护中最常用的方法。此外，还发现在选择维护方法时应考虑废物，噪音和排放措施。最终，结果表明，将废物和噪声污染作为环境选择标准时，预防性维护是正确的维护实践。另一方面，将排放物作为环境选择标准时，纠正性维护是合适的维护实践。选择正确的维护规范时，确定最重要的环境标准非常重要。显然，选择适当的维护方法应符合环境可持续性要求。我们考虑这种新做法，也就是说，基于环境可持续性的维护是一种独特的维护策略，不仅可以在汽车维护中考虑，而且可以在涉及不同实物资产维护阶段的不同环境中考虑。建议将此研究扩展到研究维护实践的其他可持续性方面，例如财务方面和服务可用性方面，以及研究其他运输方式，例如出租车，地铁和船舶。