Abstract
Urban linear heat (UHIULI) is a kind of UHI generated over urban linear infrastructure such as roads, railways, pipelines, etc across a city. Roads comprise more than 35% of urban areas where the most level of heat is generated (mostly combustion and less metabolism), trapped (materials and morphology), stored, and re-emitted (surfaces). However, UHIULI is transferred along linear infrastructure unlike urban heat island which is considered localised. There exist a variety of strategies to hinder (adaptation) or decrease (mitigation) the effects of UHIULI where microclimate-based strategies have been known the most effective. However, there is a paucity of research on road cooling strategies and doing so, road typology needs to be identified. This research aims to figure out how canopy covers (as the most effective and practicable cooling strategy) along road typology can mitigate air and surface temperature and what are the most significant contributing factors to cooling roads. To achieve this, different methods have been applied including remote sensing, fieldwork, GIS and machine learning analysis. The outcomes show canopy cover has the highest level of cooling impact and practicability on roads. What’s more, not only land use and road typology are dependent factors affecting UHIULI, but interaction between these two factors may deliver different cooling effects.
Details
Presentation Type
Paper Presentation in a Themed Session
Theme
2025 Special Focus— Sharing Practices and Sustainable Urban Fabrics
KEYWORDS
Urban heat, Linear Infrastructure, Mitigation, Adaptation, Road, CanopyCover
