Document Type : Research Paper
Authors
1
Department of Geography and Urban Planning, Faculty of Humanities and Social Sciences, University Mazandaran, Babolsar, Iran
2
Department of Regional Planning, School of Urban Planning, University of Tehran, Tehran, Iran
10.22059/jhgr.2024.369485.1008657
Abstract
ABSTRACT
Most of the researches that study the link between the environmental components of neighborhoods and the physical activity of the residents, focus on one of the objective and perceptual criteria and sometimes use these criteria instead of each other. Each of them has different impacts on travel behavior and physical activity. This has led to a new trend in the literature, which is measuring the compatibility between these two objective and perceptual components to determine the manner and extent of the effect of each on the levels of outdoor physical activity. Nevertheless, few studies have been conducted in the country after two decades of extensive international efforts. So, the present research tries to open the way for researchers and clarify the methodological challenges and factors affecting the incongruity between objective and perceptual criteria. The data were accessed by search engines such as Google Scholar, Pop Med, Scopus, and Web of Science. According to criteria such as limiting the topic to physical activity and its relationship with subjective and objective components of information, 43 articles were selected for the review. The findings showed that there is partial to moderate agreement between the objective and perceptual criteria and the residents' positive mental perception when the objective walkability of a neighborhood unit is relatively low; it can be attributed to the deficiencies caused by the real environment on the amount of physical activity in compensate people. Based on the findings, disregarding the qualitative criteria of wisdom, ignoring the effect of individual, psychological, and social factors on the perceptual criteria, the effect of the socio-economic status and the level of people's expectations on the perceptual environment, the dominance of cross-sectional studies over the cohort were listed as the main challenges
Extended Abstract
Introduction
The presence of pedestrians in urban spaces has always been important as one of the criteria for the vitality and attractiveness of urban environments. However, in recent decades, with the decrease in physical activity and obesity becoming a global concern, pedestrianization of neighborhoods and urban environments has gained increasing importance as a way to solve this problem and improve the health of society. Therefore, countless research studies are trying to answer the question of how the characteristics and components of urban spaces can facilitate and strengthen active patterns and behaviors. In this regard, studies often focused on one of the objective and perceptual aspects of the environment. Systematic reviews and experimental studies showed that the incompatibility between the perceptual and objective environment is one reason that leads to contradictory findings from studies of the physical environment, physical activity, obesity, and related diseases. Thus, the current research seeks to create a clear and transparent path for entering this current from pedestrian and health literature into domestic research with a systematic narrative review of experimental studies conducted worldwide.
Methodology
The methodology of research is based on a narrative-systematic review approach. Google Scholar, Pop Med, Scopus, and Web of Science databases were used to find articles so that the words "pedestrian," "perceptual," "objective," "inconsistency," "adaptation and "Non-compliance" were searched in the title of articles, keywords, and abstract. Then, by reviewing these articles and repeating keywords, subsequent searches focused on words and concepts such as density, accessibility, mix of uses, and street connection and distance. In total, by removing similar articles from the databases, 352 articles were selected for initial review. Then, the irrelevant articles were removed by studying the title and abstract, and finally, 102 articles were selected for full review. After a complete review and according to criteria such as limiting the topic to physical activity and its relationship with mental and objective components, the information from 43 articles was used for this review. In order to analyze and review the selected articles, a checklist including goals and questions, methodology, results, and research limitations was prepared, and all the data and information of the articles were extracted based on this checklist.
Results and Discussion
Generally, the research results showed a low to moderate agreement between the variables of the perceptual and objective environment, and a few factors consistently have a level of agreement and compatibility. The selected studies can be divided into two groups according to objective criteria; one group only compared different types of objective characteristics of the research participants' neighborhood units, while the other group considered more detailed variables such as density, mix of uses, and street connectivity for objective pedestrian measurement. Studies that consider the effect of objective and perceptual walking on physical activity or walking find stronger effects on perceptual walking than on objective walking. However, both types of walking have significant effects. Some studies showed that the reason for the low conformity between the standards is the lack of sufficient development of the perceptual standards as the objective variables of measuring the environment of the neighborhood unit. Objective and perceptual criteria cannot be used interchangeably because they consider different sources of change in behavior. Cross-sectional studies prevent causation and temporal progression of effects (from the objective environment to perceptions to behavior). Although a randomized controlled trial is not possible in this field of research, quasi-experimental and long-term longitudinal studies are needed to clarify the extent and direction of the studied effects. One of the weak points of the studies was less attention to the place of physical activity. This causes the potential of places to do physical activity to be ignored; at home, near home or work, or anywhere. In addition, activities should be distinguished from each other. Some studies showed that the compatibility between residents' perception of pedestrian orientation and the pedestrian score is dependent on the change in geographical location. The pedestrianization of suburban retail corridors, which have a high concentration of businesses but have a mix of uses and weak pedestrian infrastructure, has been overestimated.
Conclusion
The current research aimed to answer the key questions related to the objective and perceptual criteria of the environment and physical activity with a relational-systematic review:
a) Is the effect of objective criteria and perceptual criteria on walking the same? b) Is the more the objective and perceptual criteria match each other, the higher the amount of walking or vice versa? c) What are the reasons for non-compliance between subjective and objective criteria?
First, the research results showed that the environment's objective and perceptual characteristics affect physical activity and walking. However, each has a different effect and cannot be used instead of the other. Second, the studies in this field try to create a synergy between the objective and perceptual environment by bringing people's mental perception closer to the reality of pedestrianized environments or areas with lower pedestrianization so that the amount of walking and physical activity increases. Finally, it seems that the reasons for non-compliance between objective and subjective standards can be distinguished into two groups. The following suggestions were proposed as a research agenda for further studies in this field. Considering the emphasis of studies on the importance of psychological factors (such as habits, perceptions and priorities) in the adjustment or mediation of objective and perceptual criteria, these variables may help to avoid unobserved variable errors and provide more explanations for some unusual results from the analyses.
Longitudinal research and follow-up of physical changes and their effect on walking are recommended in order to find out the causal relationships between effective individual components, such as people's mobility, and social components, such as the sense of local community during the time of residence and the perceptual criteria of the environment.
In addition, evaluating the effectiveness of multi-level strategies such as infrastructures and citizens' awareness of these opportunities through mass media or signs on the perception of walking and then walkability, can be another part of future research.
Funding
There is no funding support.
Authors’ Contribution
Authors contributed equally to the conceptualization and writing of the article. All of the authors approved thecontent of the manuscript and agreed on all aspects of the work declaration of competing interest none.
Conflict of Interest
Authors declared no conflict of interest.
Acknowledgments
We are grateful to all the scientific consultants of this paper.
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