Environmental aspects of the project were given a high priority from the beginning of the project. Considerable improvements of the existing green areas of the construction site have been undertaken.

For every tree that had to be removed for the construction of the tramway, two trees have been planted elsewhere. Also, the selection of the trees was carried out through a participative process, where neighbours and business owners were involved in the final selection of the tree species.

There is a stretch of 2km in the old town where an On-Board Energy Storage System (OESS) in the trains is used; this system avoids the need for overhead catenaries or any other system to charge the trams when they are rolling on this section. The OESS mounted on the trams are only charged while they are stopped at stations. Additionally, this system allows a reduction in the trams' electricity consumption when they are operated under catenary sections by means of storing the braking energy. The application of this innovative solution has a positive effect on total energy consumption and the visual impact of this infrastructure in a sensitive urban environment.

This project was also conceived as an opportunity to renovate the areas of the town affected by the construction of the tramway. The Project Company refers to the work in different streets of Zaragoza as a façade-to-façade intervention, providing a holistic approach to construction, instead of focusing solely on the infrastructure itself.

The Procuring Authority's approach in taking advantage of the construction of new infrastructure to improve the town's appearance is a good lesson on environmental integration and public engagement.