Abstract
environmental protection issues and the monitoring of pollution, especially for the largest cities in Asia, are becoming increasingly prominent factors for inclusive urban planning of public open spaces. Recently, a walkability concept was implemented in many cities, and in 2016 it became a campaign direction for development in Seoul. This paper considers conditions of implementation for the walkability concept, using examples of pedestrian walkway-making initiatives, and regeneration of existing walkways along water streams in urban case studies in Seoul, South Korea. The role of nature-based solutions was considered in relation to aesthetics, and social and environmental characteristics (e.g., air pollution, oxygenation through greenery) obtained through literature reviews for the case studies. Considering the complexity of the situation, with factors such as Air Quality Index (AQI) warning conditions, and the general positive impact of walkability on enhancing a healthy life style and social interaction and on reducing congestion, this study contributes to the discussion on walkability, and the importance of nature-based urban regeneration projects for densely populated areas in cities. The results of particular cases in this paper suggest the need for careful monitoring and consideration of various factors for urban regeneration walkable design projects.
Highlights
With increasing urban growth in large cities, environmental protection measures and pollution monitoring are becoming important issues that need to be taken into account
Baldasano et al state that urbanization concentration in densely populated areas causes air pollution emissions, and emphasize that the SO2 average values calculated for Asia exceed the World Health Organization (WHO) guidelines
The role of nature-based solutions for walkability in urban regeneration in Seoul will be considered in relation to (1) aesthetic; (2) socio-economic; and (3) environmental characteristics
Summary
With increasing urban growth in large cities, environmental protection measures and pollution monitoring are becoming important issues that need to be taken into account. In the largest cities in Asia, the notions of environmental and air pollution have increased in importance, as they affect human health and well-being. The monitoring and measurement of AQI is an important procedure in relation to controlling and obtaining information about air pollution. Government institutions use the AQI to inform and communicate about the current air pollution status, and future forecasts. This information is critical to certain sensitive groups of residents, such as people prone to asthma, or the elderly [2,3]
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