Abstract Summary
In the urban domain, high rise buildings represent an efficient solution for the current housing shortage and coping with a lack of available space to develop real estate. However, due to the floor plan and heavier structural characteristics, high rise buildings will experience more difficulty and challenges than other types of construction in meeting the necessary emission reductions and MPG building codes that will become more strict in the years to come. Industrial, modular and biobased construction solution for building, renovation and transformation of high rise buildings are deemed to more efficient, and thus should cause less construction process related emissions. The assumption for the research is threefold: 1)Industrial and modular construction enables customized dimensions and reduced weight of 2D and 3D building elements, and thus more efficient and lighter transport. 2)Biobased material use causes further weight reduction and therefore fewer emissions from fossil logistics, and increased options to apply zero emission vehicles and equipment. 3)Circular solutions support the reuse of more local and regional secondary material, and will thus lead to less transport movements and distance travelled to source new materials. In this research we have investigated the application and contribution of multifunctional construction hubs in and around cities to support zero emission processes for high rise building. The hubs will not only consolidate materials transports but also coordinate efficiently multimodal transport flows to and from construction sites, applying digital tools and systems as a control tower for local and regional construction transport. They will also support electric transport charging, enable production and assembly of prefab building parts, and apply locally and regionally harvested circular materials. The research tested various scenarios for building design and hub network layout and their quantitative effects on logistics and emissions. Further qualitative assessments found requirements for local authorities and market parties to make explicit and adopt parameters, effects and emission reduction potentials of logistics in their processes and policies. Governments should focus their policy instruments on stimulating and enforcing these emission reductions and other urban effects such as road damage, safety and hindrance as a result of construction transport movements in and around cities. Governments should enable and encourage their local industrial and logistics clusters and business parks to establish multifunctional zero emission construction hubs. Clients and developers must be encouraged through local rules and frameworks such as emission based land allocation and tendering (EMVI). This should lead to designers taking material weight, size, modularity and circularity into account in their designs. This abstract is based on the work done in Work Package 3 ‘Optimalisatie bouwprocessen’ of the project ‘Geïndustrialiseerde modulaire en lage emissie hoogbouw in de G4’ funded by the ‘Schoon en Emissieloos Bouwen’ (SEB) programme of the Ministry of the Interior
