Suitability assessment for pluvial flood mitigation in dense urban areas, using nature-based solutions: a case of Delhi Manish M. NAIR, Shama PARWEEN, Rajan Chandra SINHA Journal of Urban and Regional Analysis, 2025 Over the past few years, pluvial floods have become a major concern for Indian cities. Factors that exacerbate the conditions include climate change, urbanisation, outdated stormwater infrastructure, decreasing capacity of natural wetlands, and natural stormwater sinks. India's metropolitan cities are at risk due to the current rate of urbanisation. The paper aims to develop a methodology that can be used to identify the areas at risk due to pluvial floods at a watershed scale and its mitigation through nature-based solutions (NBS) using geospatial analysis by considering the case of Delhi. Based on local flood data, the settlements at risk of pluvial floods were mapped using GIS, and the "Pluvial flood susceptibility map" has been developed to assess the risk of flooding, followed by selection of the most vulnerable local action area with the help of parameters like susceptibility (based on past pluvial flooding incidences) and urbanisation. Further, in the research, the "NBS suitability map" for the milli watershed (area of about 1000 to 10,000 ha) has been generated using the geospatial overlay technique of GIS. It can help identify potential areas within the study region at a sub-watershed level where nature-based solutions can be integrated, considering suitable and unsuitable conditions based on physical, environmental, and planning parameters.
Critical Appraisal of Parameters for Successful Implementation of BRTS in India Mustafa Kapadia, Satyaki Sarkar, Bimal Chandra Roy, Rajan Chandra Sinha Periodica Polytechnica Transportation Engineering, 2022 Bus Rapid Transit System (BRTS) is establishing itself as a new and sustainable solution to mass transit against the conventional transit systems in many cities across the globe as well as in India. Different BRTSs have adopted various case-specific solutions to make the system contextual to the place, user-friendly, strategic, technologically advanced, and ecologically sustainable. In most cases, the most favoured solution is governed by aspects related to available infrastructure, budgetary allocations, demand and behavioral patterns of passengers, and areas of focus. The paper makes a critical appraisal of various parameters contributing to the implementation of BRTS services across the world and applicability of the same in India. It also deals with how the application of a new transportation system affects the surrounding area and with the resulting various social and physical impacts. As a conclusion, this paper establishes that successful BRTS must combine proper station design, track design, maintained vehicles and running ways with backup infrastructure, educated and updated drivers and workforce, public cautiousness, and system-backed information technology. Further, it concludes that the institutional framework needs revamping in Indian scenario for successful implementation of BRTS projects.