Floods and coastal inundation issues
4.5.1 Floods and coastal inundation issues
The expansion of the city from comparatively safe old core to possibly higher risk periphery as well as disrupting and constraining natural drainage by expanding in to both sides of the river lood plain can only increase the lood and coastal inundation risks. In costly real estate environment, the risks get ignored and haphazard growth by multiple real estate developers only complicates the risk situation. The integrated risk informed master planning process is yet to take root in urban planning debate. Indian urban land is quite costly due to limited availability of land in the core areas, poor transportation network and archaic land use single use and building rules that discourage compact growth. Haphazard growth of the periphery and inability to extend the lifeline services, further distort the land markets. With the Para-statal Urban Development Authorities developing partial infrastructure and handing over these areas to ULBs further stress the inances and technical capacity of the ULBs to integrate resilience in urban planning. The National Disaster management Authority has recognized following reasons for growing urban lood risks NDMA 2010: Increase in impermeable areas and resultant higher runoffs Lower design criteria of storm water drains Capacity reduction of storm water systems due to lack of maintenance, Encroachment of natural drainage areas Reservoir management issues Poor solid waste management and Dumping of construction wastes on drainage lines and illing of natural water bodies. Absence of sewerage and dumping of sewage in to drainage system. Urban micro climate as well as global climate change aspects of increasing looding frequency. The above list captures combined impacts of urbanisation and climate change on urban looding. The Guidelines suggest various measures to manage urban loods including early warning systems, better designs of drainage systems. It has to be noted that NSHM has accepted the recommendations of International Conference on Urban Drainage in 2008, to 20 increase in calculated discharge suggested for designing for future storm water drains NSHM undated.4.5.2 Temperature increase, urban heat island effects and energy use:
Parts
» uccr synthesis report vol i and ii merged
» BACKGROUND uccr synthesis report vol i and ii merged
» AUDIENCE REPORT PRESENTATION uccr synthesis report vol i and ii merged
» USE OF TERMS uccr synthesis report vol i and ii merged
» CITIES, RESOURCE BASE AND RISKS
» Current growth scenario of Indian cities
» Urban sprawls DEMOGRAPHIC PROFILE
» URBAN POVERTy uccr synthesis report vol i and ii merged
» Housing CURRENT CHALLENGES OF URBAN INDIA
» Lack of infrastructure CURRENT CHALLENGES OF URBAN INDIA
» Water Supply services CURRENT CHALLENGES OF URBAN INDIA
» Sewerage and Sanitation services
» Challenges for urban governance in context of access to services
» LEGACy-CURRENT CONTExT-FUTURE OPTIONS uccr synthesis report vol i and ii merged
» URBAN GROWTH AND INCREASING RISK PROFILE
» Water Scarcity URBAN CLIMATE CHANGE RISK
» UN projections POPULATION GROWTH AN URBANIzATION
» MGI Economic and urban projection
» HPEC Report 2011-Urban Infrastructure
» FUTURE RESOURCE CHALLENGES uccr synthesis report vol i and ii merged
» INFRASTRUCTURE CHALLENGES uccr synthesis report vol i and ii merged
» GOVERNANCE ISSUES uccr synthesis report vol i and ii merged
» Downscaled Climate variability and change analysis
» ExTREME EVENT ANALySIS uccr synthesis report vol i and ii merged
» Floods and coastal inundation issues
» UNCERTAINTIES CLIMATE CHANGE PROGNOSIS FOR INDIA iNtroduCtioN
» the City uccr synthesis report vol i and ii merged
» the CoNtext uccr synthesis report vol i and ii merged
» understand historic climate trends and futuristic projection
» understand fragility of systems and service
» understand vulnerability and resilience options
» the method uccr synthesis report vol i and ii merged
» resilieNCe strateGy uccr synthesis report vol i and ii merged
» the aPProaCh uccr synthesis report vol i and ii merged
» iNtroduCtioN uccr synthesis report vol i and ii merged
» methodoloGy aNd aPProaCh uccr synthesis report vol i and ii merged
» key fiNdiNGs uccr synthesis report vol i and ii merged
» temperature trends Climate ProjeCtioNs
» rainfall trends Climate ProjeCtioNs
» City resilience strategy outPuts of teri’s study
» mainstreaming strategy outPuts of teri’s study
» summary of reCommeNdatioNs uccr synthesis report vol i and ii merged
» history aNd baCkGrouNd uccr synthesis report vol i and ii merged
» migration Pattern urbaNisatioN issues
» City level resourceinfrastructure management
» land Climate aNd hydro-meteoroloGiCal risks
» storm water drainage and loods energy
» health Climate aNd hydro-meteoroloGiCal risks
» infrastructure impacts Climate aNd hydro-meteoroloGiCal risks
» differential impacts on poor
» City resilieNCe strateGy hiGhliGhts
» urbaNisatioN issues uccr synthesis report vol i and ii merged
» PoVerty uccr synthesis report vol i and ii merged
» flood history Climate aNd hydro-meteoroloGiCal risks
» City future sCeNarios uccr synthesis report vol i and ii merged
» severe rainfall events Climate ChaNGe imPaCts
» sea level rise temperature increase
» health Climate ChaNGe imPaCts
» land buildings Climate ChaNGe imPaCts
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