1. Introduction
Rapid urbanization and the resulting increase in urban population density have intensified interest in the quality of life in cities. While contemporary cities serve as centres of economic activity, innovation, and culture, they also expose residents to a range of adverse environmental stressors, including air pollution, environmental noise, and psychological strain [
1,
2]. Another growing concern is the insufficient level of physical activity among urban populations, which has significant implications for public health [
3].
Against this background, urban spaces that promote health, physical activity, and well-being have become increasingly important. Their development aligns with the concept of the city for people, which emphasizes the importance of accessible, attractive, and inclusive public spaces [
4,
5,
6], as well as with the principles of sustainable urban development [
7].
A substantial body of research demonstrates that people consistently prefer environments dominated by natural elements over highly built-up urban settings. Among these elements, vegetation—and trees in particular—has been identified as one of the most influential factors contributing to environmental quality and the aesthetic appreciation of urban landscapes [
8,
9,
10,
11]. In urban areas, not only are parks and other green spaces important, but also elements of linear green infrastructure, such as pedestrian routes and cycling paths, which facilitate active mobility while providing everyday contact with nature. However, the use of these spaces depends not only on their technical functionality but also on their visual quality and the extent to which they meet users’ preferences and expectations [
12,
13,
14,
15,
16,
17].
The aim of the present study was to identify the aesthetic and functional attributes influencing the perception of urban pedestrian routes and shared pedestrian–cycling paths, as well as users’ preferences regarding these environments. The findings are intended to support future urban design and spatial planning decisions. To achieve this objective, the study employed the Scenic Beauty Estimation (SBE) method [
18], a well-established approach for assessing aesthetic preferences in natural and semi-natural landscapes, including forests, river corridors, parks, and various types of urban environments [
18,
19,
20,
21]. The novelty of the present research lies in extending the application of the SBE method to linear transport infrastructure, specifically sidewalks, which constitute one of the most frequently experienced components of everyday urban space. Previous studies have primarily focused on entire pedestrian environments, such as greenways, walkways, streets, and parks, emphasizing their overall aesthetic quality and the role of vegetation, whereas sidewalks themselves have rarely been examined as independent design elements. Furthermore, unlike most previous SBE studies, the present research considers not only aesthetic qualities but also the functional characteristics of the analysed spaces. Consistent with earlier investigations [
19,
21], the SBE approach also enables comparisons of landscape preferences among different demographic groups.
The study addressed the following research questions:
Which landscape attributes are perceived as the most desirable by users?
What is the role of greenery in the perception of walking and cycling routes?
Do age and gender influence the evaluation of urban pedestrian and bike routes?
Can distinct preference patterns be identified among different demographic groups?
4. Discussion
Users’ evaluations of urban spaces depend not only on their functional and technical characteristics but also on their aesthetic and emotional perception [
20]. Previous studies have shown that environmental aesthetics is one of the key factors influencing physical activity, the attractiveness of walking, and route choice [
14,
15,
16]. The aesthetic quality of a place is largely determined by its physical characteristics [
21].
In the present study, participants’ preferences for the analysed pedestrian environments were primarily shaped by the presence of greenery. Vegetation was the principal factor differentiating visual evaluations, regardless of respondents’ age or gender. The highest ratings were consistently assigned to routes located within orderly environments lined with large, mature trees. Smaller vegetation elements, including individual trees, potted trees, and lawns, were also rated significantly more positively than routes surrounded by environments devoid of greenery. In contrast, heavily paved spaces lacking vegetation consistently received the lowest evaluations. This pattern is clearly illustrated in
Table S4 presented in the
Supplementary Materials, which shows the distribution of ratings for all photographs according to respondents’ age and gender.
These findings are consistent with previous research demonstrating that natural landscapes containing vegetation are generally preferred over built-up environments [
8,
11,
16,
34,
37,
38]. Vegetation has been consistently identified as a factor that positively influences landscape evaluation [
8,
9,
10,
39]. Among different forms of vegetation, trees are considered particularly important in shaping visual preferences [
10,
17,
40,
41,
42,
43], which is also supported by the findings of the present study.
In addition to environmental characteristics, landscape evaluations are also influenced by sociodemographic factors [
10,
44]. Among these, age and gender are often considered the most influential variables [
10,
12,
45,
46,
47,
48,
49]. However, the practical importance of age- and gender-related differences should not be overstated. The most robust finding of the present study is the broadly shared preference for greenery, whereas demographic factors account for comparatively smaller variations in the evaluation of specific spatial configurations. Although age emerged as the more consistent differentiating factor in the composite and differential-variable analyses, detailed pairwise comparisons did not reveal a uniform pattern structured solely by either age or gender. Instead, many of the observed differences reflected contrasts involving particular respondent groups, especially men aged 60+, suggesting a more complex and potentially non-linear pattern of landscape preferences.
Among the evaluated routes, the highest scores were assigned to those located in orderly environments lined with trees. Areas incorporating accessible spontaneous vegetation, designed pedestrian routes integrated with naturally developing vegetation, were also rated highly. Similarly, unmanaged natural areas without formal walking infrastructure received favourable evaluations; however, in this case, preferences varied by gender. Women across all age groups, as well as men younger than 35 years, rated these environments very positively, whereas older men (35–59 years and 60+) gave them only moderate ratings. These findings are consistent with studies on Informal Green Spaces conducted by research teams led by C. Rupprecht. On the one hand, users tend to prefer wild-looking landscapes when they retain visible signs of management [
50]. On the other hand, wildness itself is perceived as attractive because of its authenticity [
51].
The greatest variation in ratings was observed for spaces representing contemporary city centres. Urban architecture, extensive paved surfaces, and trees planted in aesthetically designed metal containers elicited mixed responses. This type of environment received moderate evaluations from women aged 35–59 years and 60+, as well as from men younger than 35 years. In contrast, it was evaluated negatively by younger women and by men aged 35–59 years and 60+. The substantial variability in these ratings may reflect differences in underlying personal preferences. For some respondents, modern city centres may evoke positive associations with urbanity and contemporary design, whereas others may perceive them as artificial environments lacking meaningful contact with nature, consistent with the findings reported by Rupprecht et al. [
51]. A deeper understanding of these contrasting perceptions represents a promising direction for future research.
With respect to age, younger participants in the present study showed a stronger preference for environments that support active mobility, such as pedestrian routes integrated with bicycle paths. In contrast, older participants placed greater value on comfort, predictability, and spatial order. Gender-related differences were also observed. Women placed greater emphasis on the aesthetic qualities of greenery and showed stronger preferences for pedestrian routes surrounded by well-maintained vegetation. It may be associated with a greater need for perceived safety, as suggested by Navarrete-Hernandez, Vetro, and Concha [
52]. Men, in contrast, more frequently focused on the functional characteristics of the routes and the technical aspects of the environment, consistent with previous findings [
10,
14,
48]. These differences, however, are likely to reflect different emphases in the evaluation process rather than fundamentally different preference structures, as the overall pattern of preferences in both groups was consistently driven by the presence of greenery.
A separate issue may be the role of benches. Preferences for the presence of benches did not increase with respondents’ age. It may suggest that benches serve not only as places for rest but also as an important component of urban infrastructure that enables short breaks during everyday activities, particularly for older adults. Their significance therefore appears to extend beyond purely functional purposes, reflecting a broader social and spatial role [
53,
54,
55]. As the presence of benches was not a primary focus of the present survey, a more detailed investigation of this issue would require dedicated research.
Analyses based on composite and difference variables demonstrated that landscape preferences were determined not only by the amount of greenery but also by its spatial organisation and functional context. Younger participants expressed stronger preferences for more natural and open environments, whereas older respondents—particularly men aged 60+ favoured more orderly, infrastructure-oriented landscapes. The influence of gender remained relatively limited and was mainly associated with preferences for natural landscapes. These findings are consistent with the proposition that the more urbanised an individual’s living environment is, the stronger the preference for natural landscapes becomes [
12]. The observed patterns also appear to be influenced by cultural factors. Older participants in our study preferred paved and well-organised routes, which may reflect not only their current functional needs but also differences in life experiences and generational backgrounds [
12,
49,
56,
57]. Such environments are commonly associated with safety, stability, and ease of use.
It is also worth noting that, across all respondent groups, the lowest ratings were consistently assigned to spaces dominated by extensive paved surfaces and surrounding buildings. In particular, the lowest evaluations were given to paved areas with parked cars. This finding indicates not only a generally negative perception of environments lacking vegetation but also that parked vehicles are perceived as elements that diminish the aesthetic quality of urban space, as reported by Grabar [
58] and Oba and Iseki [
59]. It is also consistent with the findings of Sun et al. [
60], who demonstrated that the visual presence of cars and trucks reduces perceived safety in urban environments. This issue represents another promising direction for future research.
The design of urban spaces should take into account the needs and preferences of their users. Research on this topic has been conducted across various types of urban environments and increasingly includes pedestrian routes, which constitute an important component of cities and everyday urban life [
15,
16,
17,
34,
35,
43,
61]. The findings of the present study indicate that the planning and design of pedestrian routes should not be limited solely to technical considerations. This conclusion is supported by previous studies [
14,
35], which demonstrate that user preferences regarding walking infrastructure should be assessed from the perspective of users rather than designers. These studies also show that the perceived quality of a space depends on the composition and interaction of its elements rather than on individual design parameters.
When designing pedestrian environments, it is therefore important to consider the needs of different age groups and both genders by creating routes that offer a diversity of aesthetic and functional characteristics. Such environments can encourage walking, promote physical activity, and facilitate social interaction. Importantly, these studies also show that users’ preferences are shaped not only by visual aesthetics but also by the anticipated experience of using a space, a relationship that was likewise observed in the present research. Our findings therefore suggest that the Scenic Beauty Estimation (SBE) method, although originally developed to assess the aesthetic quality of landscapes, also provides valuable insights into the functional characteristics and infrastructure of urban environments. Consequently, SBE may serve as a useful tool for urban planners, landscape architects, and decision-makers responsible for managing public spaces. Furthermore, owing to its simplicity and intuitive application, the SBE method has considerable potential for use in participatory planning and public consultation processes involving diverse user groups.
Limitations and Directions for Future Research
The present study has several limitations that should be acknowledged. First, the Scenic Beauty Estimation (SBE) method, which relies on the evaluation of photographic material, is inherently subjective. Consequently, the careful and deliberate selection of photographs is essential to ensure that they accurately represent the characteristics of the analysed environments and provide a reliable basis for assessing respondents’ preferences. When appropriately designed, this approach can generate results that are directly applicable to the planning and design of public spaces [
21,
34,
61]. In addition, the local context of the photographs, all of which were taken in the city of Lublin, may have influenced participants’ evaluations. Although the photographs were carefully selected to represent a broad range of urban environments, this context may limit the generalisability of the findings. Second, the respondent groups were uneven in size, particularly the group of men aged 60+, which calls for cautious interpretation of the results.
Future research may be extended in several directions. First, integrating the SBE method with spatial data derived from Geographic Information Systems (GIS) would make it possible to relate subjective landscape evaluations to objective characteristics of the urban environment, such as the distribution of green spaces, accessibility, and spatial configuration. Second, in situ studies could verify whether preferences expressed during the evaluation of photographs correspond to people’s actual experiences of urban spaces. Another promising direction would be to incorporate users’ mobility experiences, for example, travelling on foot, by bicycle, or by public transport, as different modes of movement may influence how urban landscapes are perceived and evaluated. Finally, future studies could focus on specific environmental features, such as benches, pavement types, tree age, or the characteristics of the surrounding urban context. In addition, variable environmental conditions, such as season, weather, and lighting, may also be taken into account in further assessments.
An important issue may also be to extend the research to include questions related to unequal access to green routes for different social groups [
62]. This is also connected to the broader issue of environmental justice [
63] and the unequal distribution of green spaces in cities.
Considering these perspectives would provide a more comprehensive interpretation of the present findings and allow for more nuanced conclusions. It would also enhance the practical applicability of the results by supporting the design of urban spaces that are better adapted to the needs, preferences, and everyday experiences of diverse user groups.
Overall, the present study provides evidence that aesthetic preferences should be considered an integral component of pedestrian and cycling infrastructure design. The identified preference patterns offer practical guidance for urban planners and landscape architects by indicating which spatial characteristics are most positively perceived by different user groups and should therefore be incorporated into the planning and revitalisation of urban routes.
5. Conclusions
The aim of this study was to examine how greenery and spatial characteristics influence the aesthetic perception of pedestrian and shared pedestrian–cycling routes using the Scenic Beauty Estimation (SBE) method. The results consistently demonstrate that greenery constitutes the primary and universal dimension of landscape preference. Across all age–gender groups, environments with a clear presence of vegetation were rated higher than built, “hardened” spaces. Moreover the highest aesthetic ratings were assigned to a well-maintained park environment characterised by mature trees, smooth pedestrian surfaces, and benches. Environments containing spontaneous vegetation, both with and without formal pedestrian infrastructure, also received high evaluations. Demographic factors—particularly age—modulate the strength and structure of these preferences, but do not alter the overall pattern. The application of composite and differential variables made it possible to identify more subtle, structure-based preferences that remain hidden at the level of individual photographs. Urban environments characterised by limited vegetation and the presence of parked cars were consistently evaluated negatively across all respondent groups.
Although the Scenic Beauty Estimation (SBE) method was originally developed to assess landscape aesthetics, the present study demonstrates that it also provides valuable insights into users’ preferences regarding the functionality and infrastructure of urban spaces. Consequently, it can serve as a useful tool for urban planners, landscape architects, and decision-makers responsible for public space management. Owing to its simplicity and intuitive application, the SBE method has considerable potential for use in participatory planning, public consultation, and urban design processes involving diverse user groups. The presence of greenery along pedestrian and cycling routes positively influences users’ perceptions of urban environments. Consequently, such spaces are more likely to encourage walking and cycling, thereby supporting physical activity and contributing to improved public health.
The findings have practical implications for sustainable urban design. Greenery should be treated as a fundamental component of pedestrian and cycling infrastructure, as it significantly enhances perceived attractiveness and may support active mobility. At the same time, spatial solutions should be diversified to reflect the needs of different user groups, particularly in terms of spatial organization, accessibility, and everyday usability. The planning and design of new pedestrian and cycling routes should incorporate adequate space for vegetation from the earliest design stages, including the preservation of existing natural vegetation where possible and the planting of large, mature tree species. Additionally the aesthetic quality of existing pedestrian and cycling infrastructure can be substantially enhanced through the introduction of additional vegetation, particularly mature trees, which may increase the attractiveness of these spaces and encourage their more frequent use.