Traffic Control Center, Cantonal police
Chur GR, Switzerland
Competition 1st prize 2021
Project 2022-
Start of construction 03-2023
Planned completion 07-2024, opening 08-2024
CaPo Chur.
Overview
Client
Canton Graubünden, vrepresented by the Hochbauamt Graubünden, Chur, Switzerland
User
Cantonal Police Graubünden, Chur, Switzerland
Architecture, General Planning
Comamala Ismail Architectes, Delémont, Switzerland
Team ZPF
Milad Amini, Emil Araktsijev, Fabian Hug, Sali Sadikaj, Remo Thalmann, Ann-Christin Westkamp
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For organisational and operational reasons, the traffic bases of the cantonal police in Chur and Thusis will be merged into one new building. Already in 2016, a suitable plot of land was acquired for this purpose at the Chur South motorway junction, which is ideally located in terms of traffic strategy for efficient operation with rapid intervention times. The new building was launched as a pilot project as part of the "Green Deal" action programme and is being implemented as a lighthouse project in the area of sustainable construction.
The main goals of the new building project are operational optimisation and the provision of a future-oriented, flexibly usable infrastructure. At the same time, the project will meet today's legal requirements and regulations in terms of traffic, energy, environment and safety. The new traffic base gives the cantonal police a contemporary appearance and is a clear statement of sustainability.
The federal government and the cantons have set a framework in their climate strategies. The canton of Graubünden is going one step further. The basis is the "Green Deal Action Plan for Graubünden (AGD) - seizing the opportunities of climate change", which covers the areas of climate protection and climate adaptation and ensures that the curbing of greenhouse gas emissions and adaptation to climate change are tackled effectively and with the highest priority in terms of time.
Net zero building
The new transport base building will be constructed and certified to the Minergie-A-Eco® standard. Minergie-A buildings produce more energy than they consume and thus combine comfort with maximum energy independence. In the Eco standard, so-called exclusion criteria prevent the use of systems and materials that are incompatible with sustainable construction. These include, for example, biocides or wood preservatives as well as harmful adhesives in interior spaces.
The net zero target is achieved for the operation of the building (operating energy). The compensation of grey energy in the construction of the building is aimed for. The aim is to use materials that are as durable, recyclable and low in CO2 as possible. The reduction of "grey energy" is primarily achieved by reducing the consumption of materials and by not using any materials or layers - for example, no underlays or suspended ceilings are used. Plaster, facing shells and paint coats are avoided as far as possible. In the spirit of the circular economy, reusable materials are used.
Sustainable building
The application of proven principles for sustainable construction are evident in the new building: compact volume, reduced construction as well as clear, simple structures and flexibility. The concrete ceilings are made of gravel from the excavation, load-bearing columns are prefabricated elements and non-load-bearing walls are made of clay blocks. The window proportion of 27 % guarantees good use of daylight. The opaque wall proportion of 73 % prevents heating in summer.
The low-tech building services concept includes a connection to the CO2-neutral anergy grid as well as heating and cooling by means of a heat pump and thermoactive component systems (TABS). The photovoltaic system on the roof and on the façade, with a total area of around 900 m2 and an output of approx. 160 kWp, supplies the electricity for the building services, the offices and the operational areas. The excess electricity is stored in batteries and the hot water tank and can also be used to charge battery-powered vehicles in the future.