CN 11-5366/S     ISSN 1673-1530
“风景园林,不只是一本期刊。”

郊野绿道骑行停驻行为的视觉环境影响因素

Visual Environment Factors Influencing Staying Behaviors During Cycling on Countryside Greenways

  • 摘要:
    目的 骑行是郊野绿道上主要活动形式之一,多变的郊野环境使骑行者的停驻行为较为复杂,从而影响骑行安全。深入剖析郊野绿道骑行停驻行为及视觉环境影响因素,为提升郊野绿道骑行安全提供新思路。
    方法 以杭州青山湖郊野绿道为例,选取停驻关键指标,借助Keep软件中的骑行轨迹计算停驻强度,并结合图像语义分割与ArcGIS软件分析视觉环境特征,通过相关性和多元线性回归模型分析影响因素及其强度。
    结果 1)骑行者在节点空间的停驻时间虽然普遍长于路段空间,但整体仍显短暂,而路段空间的停驻率更高,这可能增加骑行安全隐患;2)节点空间的停驻行为主要受视域面积影响,而路段空间则更多受绿视率影响;3)在开敞的节点空间,骑行者倾向于进行有意的长时间停驻,而在绿化水平较高的路段空间,骑行者更可能进行即兴的短时停驻。
    结论 对于视觉环境不佳的节点空间,可增强亲水性和山体可见性,以延长停留时间;对于绿视率较高的路段空间可因地制宜增加小微停驻点,以减少停驻人群对下坡骑行者的阻碍。为提升郊野绿道骑行安全性、驿站使用强度和路段小微停驻点选址提供了依据和方法。

     

    Abstract:
    Objective Countryside greenways represent an organic extension of urban green slow-moving traffic systems into suburban areas, addressing urban residents' demands for closer contact with nature and fostering the development of an integrated urban-rural belt. Cycling, as a slow-moving activity that combines outdoor recreation and leisure tourism, constitutes one of the primary modes of activity on countryside greenways. Compared to urban greenways, cycling on countryside greenways is characterized by faster speeds, longer distances, and longer durations, causing cyclists to pay closer attention to the amenities, scenery, and safety aspects of the staying spaces when selecting a site and determining the duration of their sojourn. Since visual perception accounts for 80%-90% of the information humans receive from their environment, it exerts a profound influence on human behavior and environmental experiences. Riders on countryside greenways are often attracted to the distinctive visual environments and tend to make spontaneous stops, which could increase safety risks. Furthermore, existing regulatory frameworks have not sufficiently addressed the safety concerns of cycling on countryside greenways, resulting in insufficient attention to this issue. Therefore, investigating the characteristics of staying behaviors and the influencing factors of the visual environment on countryside greenway cycling holds practical significance and expands upon existing greenway research. The planning and design of staying points in conjunction with the visual environment not only help improve the safety and user-friendliness of greenway cycling but also leverage scenic resources to entice cyclists to linger longer, thereby enhancing the usage intensity of the countryside greenway and further promoting the development of the rural tourism economy.
    Methods This research focuses on the Qingshan Lake Greenway in Hangzhou. This greenway, spanning across urban built-up areas, rural settlements, and natural scenic zones, showcases a unique combination of lakeside and mountainous landscapes, making it a representative example of countryside greenways. Through field research and analysis of cycling trajectory data, local staying spaces are categorized into nodes and road sections. Four key indicators — number of stays, duration of stays, frequency of stays, and staying rate — are established to provide a comprehensive understanding of user engagement and interaction with the greenway environment. This approach allows for a more nuanced analysis of how cyclists utilize and experience the greenway spaces. Additionally, visual environmental features are analyzed through image semantic segmentation and ArcGIS, with a view to exploring their impact on staying behaviors during cycling. Correlation and multiple regression analyses are employed to determine the intensity of the visual environment’s influence on staying behaviors.
    Results The findings reveal that cyclists tend to stay longer at nodes compared to road sections. However,the overall staying time remains brief, averaging less than one minute. This indicates low utilization rates of greenway stations and viewing platforms. Conversely, the frequency of spontaneous stays on road sections is higher, suggesting that cyclists are more inclined to make impromptu stays during their rides. Given the prevalence of cycling accidents on countryside greenways, these spontaneous stays may pose significant safety risks. Moreover, the visual environment’s influence varies between nodes and road sections; staying behaviors at nodes are primarily affected by the visual field area, while those on road sections are influenced by green visibility, with higher greenery levels promoting impromptu short stays.
    Conclusion This research endeavors to develop spatial strategies for enhancing the staying behaviors of cyclists on countryside greenways, with a view to improving the usage intensity of greenway nodes and ensuring the safety of road segment traversal. Particular emphasis is placed on the optimization of staying spaces situated in poor visual environments, because the visibility of prominent landscape features, such as water bodies and mountain vistas, has been found to exert a significant influence on cyclists' propensity to linger. At the node level, strategies should focus on broadening the visual field and prolonging the duration of stays. This can be achieved through strategic optimization of plant layouts and reduction of physical obstructions, which collectively serve to enhance the perceivability of the surrounding natural scenery. In contrast, the spatial design of road segment staying spaces must prioritize safety considerations, especially in areas constrained by adjacent mountains or cliffs. By expanding the width of select road sections and introducing cantilevered structures or recessed micro-terraces along them, the creation of small yet safe 'pocket' staying spaces can provide cyclists with suitable rest areas without compromising the overall flow of traffic. This, in turn, contributes to a more vibrant and active greenway network.The systematic integration of the spatio-temporal distribution patterns of cyclists' staying behaviors with the influencing factors of the visual environment laid the foundation for this research, which not only informs the enhancement of greenway station usage intensity and cycling safety, but also provides a robust methodological framework for the optimization of small and micro staying point placement along road segments. Looking ahead, further investigations incorporating other greenway usage characteristics, such as cycling distances and incident-prone locations, could shed additional light on the construction of cyclist-friendly countryside greenway environments that cater to the diverse needs and behavioral patterns of users.

     

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