At the core of the Allasjärjestelmä is the concept of a "superblock," a large, self-contained urban unit that includes residential, commercial, and public spaces. Each superblock is surrounded by a green belt, which serves as a buffer zone and provides recreational and ecological benefits. The superblocks are connected to each other through a network of pedestrian and cycling paths, creating a safe and convenient environment for non-motorized transport.
The Allasjärjestelmä also incorporates principles of mixed-use development, with residential, commercial, and public spaces integrated within each superblock. This approach promotes walkability, reduces the need for private cars, and creates vibrant, livable neighborhoods. The system also emphasizes the importance of public spaces, with each superblock featuring a central plaza or green space that serves as a gathering point for residents and visitors alike.
One of the key features of the Allasjärjestelmä is its focus on sustainability and resilience. The system is designed to minimize the environmental impact of urban development, with a strong emphasis on energy efficiency, waste reduction, and green infrastructure. The green belts and public spaces also play a crucial role in mitigating the urban heat island effect and improving air quality.
The Allasjärjestelmä has been implemented in several cities around the world, including Helsinki, Finland, where it was first developed, and Malmö, Sweden. The system has been praised for its ability to create livable, sustainable, and resilient urban environments, and its potential to address some of the most pressing challenges of modern urban living. However, the Allasjärjestelmä is not without its critics, who argue that it may not be suitable for all urban contexts and that it may require significant investment and political will to implement effectively. Despite these challenges, the Allasjärjestelmä continues to be a prominent example of innovative urban planning and development.