Page 26 - Shelter - April 2023
P. 26

THEME PAPER


              GREEN       INFRASTRUC-         system,  sludge  gas/energy     prams and animals Multi-
              TURE  AND  INTELLI-             recovery,      vermi-culture,   modal     integration,   last
              GENT UTILITIES                  fossilization and compositing   mile     connectivity    and
                                              options can be adopted          e-governance are the pillars
              Green infrastructure has an     for  solid  and  liquid  waste   of sustainable urban mobility.
              important role to play in the   management.  Underground        The inverted pyramid of
              adaptation and mitigation       pneumatic conveying systems     green transportation indicates
              of  climate  change.  Such      are more hygienic, economical   linkages, cycling and public
              infrastructure is adopted to    and avoid movement of trucks    transport need to be given
              build thermally comfortable     for transportation of wastes.   priority  over  private  cars.
              outdoor    spaces,   improve                                    Compact development can
              aesthetics,   and    increase   CLEAN        TRANSPORT          optimise   urban    footprint
              the water conservation  by      AND TRANSIT ORIENT-             and  need  to  travel.  A  better
              reducing    surface   runoff,   ED DEVELOPMENT                  dispersal of traffic can be
              increasing  infiltration,  and
              improving urban drainage        As urban transport contributes   achieved by a finer grid
              management. It also includes    nearly two-thirds of the total   of roads with a maximum
                                                                              spacing of 250 m roads and
              green/public    spaces,   bio   suspended particulate matter
              retention cells, and landscaped   and 18 per cent of carbon     100 m for NMTs/pedestrians.
              depressions that capture and    emissions, it is necessary to   ENHANCING             SOFT
              infiltrate  storm water, green   provide sustainable modes      MOBILITY
              roofs and wetlands.             of transit run by alternative
                                              fuels, like electric batteries,   The  walkability   network
              Surveys       reveal     that   green   hydrogen,     ethanol   analysis is based on two key
              approximately      40%     of   blended     gasoline,     etc.   indicators:
              urban population in India       Integrated Transit Corridors
              is not covered by sewerage,     (ITC), integrating BRT, Metro,   i   Service catchment area
              sanitation,  drainage    and    and trains, together with           calculates the total length
              solid waste disposal. Various   pedestrian and cycle  lanes,        of sidewalk necessary
              alternative     technologies,   can be flanked by high-             to reach the dwellings,
              based on the use of IT,         density  developments.  In          shops, and workplaces
              simulation,  block chain and    existing cities, the 15 minutes     from the bus stop/metro
              automation  can make the        Paris model, can be adapted,        station at 100, 200 and
              services smart and intelligent.   which  means maximum 15           400 meters; and
              The common method of land       km distance by metro/trams,
              filling for solid waste disposal   8  to  10  km  by  bus/car/2   ii   Urban    permeability
              is  an  environmental  disaster.   wheelers, 2 km by cycle and 1    indicator calculates the
              Instead,        decentralized   km by walk.                         average perimeter of an
              systems based on 5 R                                                urban block by weighing
              strategy of reduce, refuse,     Existing   roads    can    be       its impact on pedestrians’
              reuse, recovery and recycling   revamped and landscaped to          movement.
              should  be  explored.  Three    enhance space for pedestrians,   These requires the following:
              bins provide separate bins      cyclists and public transit
              for trash, recyclables and      systems.  All  highways  and    •   Consolidated       public
              compost.       Biotechnology,   railway/metro  lines  should        green,      which      is
              enzyme based STP, bio-          provide safe crossings  for         universally    accessible,
              remedial  treatment,  vessel    pedestrians,     wheelchairs,       rather than strips of


              24     HUDCO-HSMI Publication
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