Environmental quality

The indoor green wall installed at the University of Natural Sciences in Lublin. Apart from its decorative and aesthetical functions, the wall will serve educational and research purposes. The wall consists entirely of moss and does not require watering. It will be monitored regularly to analyse the impact of light conditions for proper growth and development of plants in these type of installations [1,2].

The first external green wall in Lublin was installed at the University of Natural Sciences in September 2015, and it was later followed by two smaller installations inside and outside in 2017 [5]. Apart from their decorative and aesthetical functions, the walls serve educational and research purposes, as the suitability of the chosen plants for the Polish climate conditions will be evaluated for similar urban projects in the country. Finally, the project promotes urban greenery and certain offsetting for grey infrastructure [1, 2, 3, 5].

In 2008 the new building of the WGV-Insurance has been opened in Stuttgart. Since then customers and employees of the WGV have enjoyed the beautiful courtyards which contribute to a good working environment. The approx. 3.6 ft. (1.1 m) high, built-in planters have been provided with an automatic irrigation system with the irrigation pipes installed below the elevated concrete slabs. The four courtyards have been planted with a total of 58 small crowned trees. In addition, several extensive green roof areas of approx. 21,600 sq. ft. (2,000 m²) total were installed to improve the Stuttgart climate. (1, 6).

The 40-storey mixed-use skyscraper will serve as an economic catalyst for the French city’s central business district and comprise offices, a hotel, a restaurant, and residences. The tree-covered areas of the tower will give the building its iconic appearance and a portion of that green space will be open to public use (Ref. 1). Trees will line the platform of the building and a ribbon of gardens will curl around the glass facade to its full height (Ref. 2).

The Park Killesberg serves as the green centre of the newly constructed district in Stuttgart and continues the long history of the area as a garden show site with a contemporary expression of landscape architecture and as a model for interconnected green spaces. The design is the result of a collaborative process with the local authorities, citizens and neighbours (1).

Greened-over urban railway tracks (grass tracks) is a city-wide program in Stuttgart which assumes the construction of tram lines with grassed-over tracks. This applies not only to planning and construction but also long-term maintenance (ref 1).

A large urban park in Lublin was built to commemorate John Paul II’s visit to Poland in 1987. The project ensured the utmost possible preservation of the natural terrain so that it forms a harmonious whole with the surrounding landscape. The park serves as a green recreational area for the citizens with its open-air sports facilities and a small amphitheatre for local festivities and extracurricular activities [1].

The garden was designed by landscapers Michèle Orliac and Miquel Battle and realized for a cost of 3 million euros. This "new green lung", as presented by the City Hall of Toulouse, is part of a major urban project that provides for the creation of 500 housing units in the Niel District (Ref. 1). The project involved creating vegetation enmeshed benches (Ref. 7) and using permeable flooring materials that prevent water loss and reduce the potential of flooding (Ref. 8).

The construction of a new main bus station inaugurated in 2014, is part of a desire to reduce greenhouse gas emissions and to encourage users to favor bus routes (Ref. 1). Part of this construction project, a vegetal wall of 210 meters long and 8 meters high has been implemented in order to act on noise (-20 decibels) and visual pollution, and improve air quality. It will be the largest public vegetal wall in France. (Ref. 4, page 26)

After its abandonment by the British military in 2012, the development of a new utilization concept and plan for the former military base in Gremmendorf was encouraged by the city’s planning department. Intensive citizen participation efforts were identified and ideas conceptualized, followed by an architectural competition based on which the spatial development plan was elaborated. The plan, which is currently being developed further by the winning architecture bureaus in coordination with the spatial development authority, intends the development of an attractive living quarter as a "garden town" with several green and sustainable drainage elements (Ref. 1 and 5).