Sustainable and water-wise cities have an eco-friendly urban hydrological cycle (UHC). Unfortunately, the UHC of Pakistani cities does not remain eco-friendly. Pakistan lies within the influential area of the world's largest monsoon weather system. Cities like Lahore are simultaneously vulnerable to urban flooding and water scarcity due to extreme climate change events. Therefore, Pakistan's urban areas require Urban Water Infrastructural Transformation (UWIT), which can be achieved by identifying suitable Rainwater and Stormwater Harvesting Potential Sites (RSHPS). In this study, we conducted the spatial analysis to identify these RSHPS within Lahore city for 2020, utilizing the World View Water Index (WV-WI). The results show that there are 85.54 km2 areas for RSRHPS in Lahore. Therefore, this study will serve as a snapshot for policymakers to simultaneously control the menace of water shortage and urban flooding.
The study addresses the importance of sustainable and water-wise cities in maintaining an eco-friendly urban hydrological cycle.
Recognizing the pressing need for change, the research emphasizes the requirement for urban water infrastructural transformation in Pakistan's urban areas.
Study proposes a solution through the identification of suitable rain and storm water harvesting potential sites as part of the UWIT strategy.