The TIAA MRT System has Chingpu and Lujhu maintenance depots in which Chingpu is a fifth-level main depot and Lujhu is a third-level depot. The main purpose of the depot is to provide a venue for the testing of the EMUs and E&M systems during the construction period and to provide day-to-day operational functions such as vehicle parking, maintenance and cleaning during operation.
Lujhu Depot is located at the north side of Nankan River near Shanguo Road of Luzhu District, Taoyuan City. The depot covers an area of about 24.6 hectares. According to different land use categories, Luzhou Depot is divided into the main building area, surrounding agricultural roads and new periphery roads, existing agricultural irrigation diversions and conservation areas. The main purpose of the conservation area is to maintain natural purification of air in the depot, water conservation and balancing the ecological environment. The area behind the new roads on the north and east side of the depot with a buffer green belt of 10 meters or more is reserved as the conservation area. It is about 7.5 hectares and is 30% of the total area. In addition, in order to reduce the impact of the development of Lujhu depot on the surrounding environment, an ecological pool of about 0.4 hectare was set up in the arc-shaped conservation area on the eastern side of the depot to replace the existing pool which was abolished by the development of this project.
The main function of the 1.5 meter ecological pool is to provide diversity of the ecological environment in order to massively increase green building indicators in the depot. Ecological pool within the region can be set up to effectively collect surface runoff water to increase the surface seepage rate to achieve conservation of groundwater. The hydrophilic arbors of the Taiwan native species, which are planted in the ecological pool area, include the small-leaved barringtonia, kusano willow and wood avens; other aquatic plants such as Britton's wild petunia, iris, butterfly ginger and shell-flower are also planted in the area. In addition, the area included a porous ecological zone, creating a low management and maintenance, natural succession ecological environment. At present, the ecological pools and surrounding ecosystems of the hydrophilic arbors and aquatic plants have attracted many birds and insects including tilapia, black Chinese roach, and aquatic insects. We expect that after proper management of the operation units, the quality of the ecological environment will be better and the ecosystem will be even more abundant and diverse.