森林中的騎行道

設計：BuroLandschap,De Gregeorio &Partners

攝影：Visit Limburg and Luc Daelemans

在博斯蘭，你可以騎自行車在森林中穿行而過。這條環形自行車道會安全地將你引向更高的地方。確切來說，可以在樹木之間穿梭騎行至10 米高的地方。在那里你可以感受大自然之美。這條可以穿越無數樹冠的自行車道，由線條流暢且具有標志性魅力的雙圓組成，我們的騎行體驗便由此開啟。游匿于佛蘭德最大林區博斯蘭之中，交錯在林堡272 自行車道網絡間。

路徑全長700 米，游客將沿坡度為3～4%的環路逐漸騎行至高空，9 米后又迎來下坡。雙環形橋直徑100 米。車道由聚氨酯涂料制成，直徑20 厘米狹長的耐候鋼柱支撐在兩側，并設有不銹鋼網結構的保護欄桿。450 根松樹軀干包覆的柱子相距1、2 和3 米交替放置，獨樹一幟又高聳筆直，仿佛與森間林木交融在一起。3 米的自行車道寬度并不過分奢侈。這樣騎行者能擁有足夠的空間。為了保證沉浸式騎行體驗，高架騎行路徑上沒有路標、信息和視線焦點。新“荒地騎行”混凝土騎行道將連接該橋結構與現有的自行車道網絡。車道間由環形交叉道連接，交叉道內固定有耐候鋼圈，并介紹了有關該項目的必要信息。兩個耐候鋼架結構支撐的展館式空間伴隨出現，原木狀樹木堆疊在周圍。這些樹是為了給自行車橋騰出地方而被砍伐的樹。

該騎行橋的建造嚴格遵守尊重森林、地表下巖石和博斯蘭在森林管理方面的目標，需要巧奪天工的技術。研討和準備工作至充分周密才開始施工，現場像組裝大拼圖般謹慎。環路中心放置的37 米高的大型建筑起重機。高度遠高于樹木，確保現場整個建筑的施工。使用施工起重機能夠避免壓實土壤和不必要的伐木。

在選擇建筑時，考慮到了林堡省旅游目的地營銷組織Visit Limburg 的CEC 原則：一條體驗感十足，舒適愜意的無車路線。游客將融入自然，傾聽壯麗又生動的自然回聲，與樹木共生共棲，體驗高地“漂浮”感。隨坡緩緩爬升時，更豐富的景觀將展現在眼前。Visit Limburg 的目標正是：創造擁有獨特景觀體驗的騎行項目。

In Bosland you can cycle through the trees.This cycle path safely takes you into higher realms.Quite literally -because you cycle up to a height of 10 metres between the trees.You can see,feel and smell nature’s splendour.The cycling experience is a cycle path through the crowns of the trees that consists of a sleek double circle with iconic allures.It is located in Bosland,the biggest forest area in Flanders,at junction 272 of the Limburg cycle node network.

The path is 700 meters long and gradually rises 3-4% to subsequently descend again after 9 meters.The diameter of the bridge is 100 meters.The cycle path was built in PU coating and steel,supported on narrow corten steel columns (diameter 20 cm) and provided with a railing with a stainless steel net structure.The 450 unique columns are placed alternately at 1,2 and 3 meters from each other and symbolize the straight trunks of the pine trees.This ensures that the construction blends nicely into the environment.The cycle path width of 3 meters is not a superfluous luxury.This way the cyclist has enough space.To keep the cycling experience pure,road markings and information or focus points on the elevated cycle path were omitted.The construction was connected to the existing cycle route network via a new concrete cycle path.The connection was completed via a roundabout with a corten steel ring on the inside with the necessary information about the project.The accompanying cycle pavillion is made up of two corten steel frames around which trees are stacked like a log.These trees are the trees that were felled to make room for the cycle bridge.

The construction of the bicycle bridge had to be done with full respect for the forest,for the subsurface and for the objectives that Bosland has in terms of forest management.That required an ingenious way of working.The construction was prepared as much as possible in the workshop and then assembled on site,like a big puzzle.In the centre of the circle a large building crane of 37 meters high was placed.It stood far above the trees and made it possible to build the entire structure on site.By using a construction crane,we avoided soil compaction and unnecessary logging in the remaining part of the forest.

When choosing the construction,the CEC principle of Visit Limburg was taken into account: a Car-free route,full of Experience and Comfortable.The experience is in the interaction with the magnificent nature and in the feeling that you grow with the trees and "float" the higher you get off the ground.As you rise,you experience the forest environment in various ways. And that is the goal of Visit Limburg:creating unique cycling projects that strengthen the landscape experience.