为所有人带来自然 | Bringing Nature To All
Nattours无障碍休闲步道项目希望从实用和人文主义的角度，将芬兰赫尔辛基当地的自然风光景点打造为一个更加便利的空间。最终，建筑事务所Studio Puisto Architects决定在城市中的几座小岛上设置一系列无障碍的木制自然步道。尽管该地区有着丰富的生物多样性和景色优美的原野，但是由于之前的步道结构过于简陋，导致了人们对这些自然景观缺乏热情和兴趣，因此，本项目所设计的步道系统就旨在改变这种现状。
The Nattours project began with the goal of making the local natural attractions in Helsinki, Finland more accessible, not only from a practical standpoint, but a humanistic one too. The result was a series of accessible nature trail boardwalks throughout several islands in the city. Despite the rich biodiversity and scenic wilderness in the area, the pre-existing trail structures were not able to support and drive enough interest into their use and these new trails sought to change that.
▼步道局部，partial view of the Nattours boardwalk
作为赫尔辛基市和塔林（Tallinn）市共同努力的结果，Nattours项目由建筑事务所Studio Puisto与建筑事务所Nomaji Oy合作完成。该项目的设想是，首先在Lammassaari岛上设计一系列新的无障碍自然休闲步道，随后，将步道系统的概念扩展运用到Vanhankaupunginlahti岛和Harakka岛上。值得一提的是，上述的三个小岛都位于荷兰赫尔辛基市。
As a joint effort between the cities of Helsinki and Tallinn, the Nattours project involved Studio Puisto, in collaboration with Nomaji Oy, to design the new accessible nature trail boardwalks initially for Lammassaari island with later phases in Vanhankaupunginlahti and Harakka island, all of which are located in Helsinki.
▼步道局部，木制的休闲步道完全融入自然环境，partial view of the Nattours boardwalk, the wood path fully embraces the nature around it
For the island of Lammassaari, the preexisting duckboards and path structures leading into the island were redone with a modular design that consists of four different components. This construction method allowed for the preexisting base structures and soft bends to be sustainably reused along the approximately one-kilometer long boardwalk route without waste. At the same time, two new birdwatching platforms were built along the path with an additional platform next to the current bird observation tower on the island.
▼步道局部，设有观察研究鸟类的平台，partial view of the Nattours boardwalk with birdwatching platforms
On the other hand, for the island of Harrakka, the focus was instead on developing new ways to coherently mark the nature trails as well as designing uniform railing systems for them. A preexisting concrete bunker in the area was also transformed into a birdwatching tower, with the wooden structures making up the trail leaning on and twisting around the bunker to create a sheltered observation place.
▼步道上的观鸟台，可在此观景，the birdwatching platforms on the Nattours boardwalk with the views of the surroundings
为所有人而作的设计 | Design For Everyone
One of the most fundamental aspects to the Nattours project was that the entire boardwalk needed to be thoughtfully designed for everyone to equally enjoy, meaning that it was essential for it to be adequately accessible. To best prioritize accessibility, the path follows gently sloping curves along the way while the ends of the observation platforms are fully glazed to allow both children and wheelchair users alike the possibility look out into the vast nature without obstruction. In addition, the ends of these observation platforms are also organically enlarged to support teaching purposes as well as to facilitate a more social, comfortable birdwatching experience. These sorts of details, although subtle in practice, help make the paths more accessible for all without taking away from the overall design aesthetic.
▼步道上的观鸟台，观鸟台的前端全部以玻璃作为饰面以确保所有人的景观视线，the birdwatching platforms on the Nattours boardwalk, the ends of the observation platforms are fully glazed to guarantee everyone’s view
防洪的步道系统 | Flood-proof Architecture
Given the site’s propensity to periodically flood, the Nattours boardwalk supports this natural occurrence rather than interferes with it. In its modular construction, the structure has a sequence of vertical wooden poles along its edges where the path is attached to on the sides as opposed to anchoring the path entirely into the ground. Thus, when the island of Lammassaari floods, the top substructure layer of the boardwalk not only floats upwards with the water, but also remains in place due to the placement of these wooden poles. By allowing all natural events, even those conventionally seen as negative, to have an influence and effect on the architecture, it fully embraces the nature around it – a solution we feel is fitting for a nature trail. Altogether, the design approach for Nattours is one that we hope will better foster an engagement with the nature around us in the generations to come.
▼步道局部，步道被固定在沿着其边缘设置的一系列垂直木杆上，partial view of the Nattours boardwalk, the path is is attached to a sequence of vertical wooden poles along its edges
▼步道细节，details of the Nattours boardwalk
▼黄昏时的步道景观，the Nattours boardwalk at dusk
▼步道夜景，night view of the Nattours boardwalk
▼步道平面图，the plan of the Nattours boardwalk
▼步道立面图，the elevation of the Nattours boardwalk
Task: Accessible recreational path for the island of Lammassari in Helsinki, Finland
Scope: Pitched plow structures, observation decks, towers and platforms
Client: City of Helsinki
Design: Studio Puisto Architects: Emma Johansson, Heikki Riitahuhta, Sampsa Palva, Willem van Bolderen, Mikko Jakonen, Ioana Maftei + Nomaji Oy: Varpu Mikola
Competence: Architectural design, detail work, accessibility design
Photos, video: Decopic