With the Smart Mobility Hub, an innovative, mixed-use building is being created in the heart of Stuttgart that will incorporate sustainable mobility, city logistics and sharing concepts, among other things. The new building aims to harmonise future and reality as well as sustainability and economic efficiency.
The horizontal and strongly separating effect of the existing multi-storey car park is abandoned in favour of individually identifiable vertical structures. This open setting allows views from the existing buildings on Esslinger Strasse across the green area of the base building to the city centre.
The modular structure of the ensemble allows the edge of the plinth to be shifted in view of the planned redesign of the B14 with a considerably reduced traffic area, so that the successive rounding off of the street space on the basis of the competition result by ASP Architekten is easily possible.
The Smart Mobility Hub addresses the issues of sustainable construction, climate neutrality and climate change adaptation in city centres from different angles:
Urban planning objectives, climate change adaptation measures and the economical use of resources for construction and operation are components that can be directly assigned to the new buildings and can be directly influenced by the planning:
The urban arrangement of the buildings with the cantilever over the B14 and thus the visual reduction of the urban motorway prepares the long-term transformation of the urban space of the B14 into an urban boulevard.
The greening of the roofs and façades improves the microclimate in the urban space through evaporative cooling and the binding of fine dust and also reduces the ‘heat island effect’ for the neighbouring district. The substrate layers of the greenery on the roof and terrace reduce rainwater run-off from the built-up areas and are therefore an effective tool against more frequent heavy rainfall events.
The buildings are constructed with the aim of minimising the ecological footprint of construction and operation.
The timber construction of the upper storeys serves as a CO2 store for many decades and thus reduces the CO2 footprint of the solid components and steel beams required for structural reasons. The façade materials and insulating materials as well as the quality of the glass are carefully selected and optimised in order to take into account all aspects of thermal insulation in winter and summer as well as the grey energy content. The reusability of the timber construction also means that the mobility hub can be adapted to future forms of mobility or even comprehensively converted and dismantled. The office and commercial spaces can also be used again and again thanks to the flexible floor plans and the associated robust and flexible system technology, ensuring long-term sustainability.
The high thermal insulation standard of the buildings and the passive measures for summer heat insulation reduce the energy requirements for heating and cooling. Floor plans and façades are optimised with regard to the use of daylight and thus contribute to reduced electricity requirements for artificial lighting.
A PV system on the roof of the top floor of the timber multi-storey car park and on component C cover the annual operating power requirements of the buildings. The additional connection to the charging infrastructure means that most of the locally generated electricity can be used directly on site. A higher-level control system optimises the use of the generated electricity depending on the demand available at the time. The transmission grids are thus relieved both in terms of feed-in and in covering the demand for charging current.