smart city with gis
TRANSCRIPT
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Why GIS is indispensable for Smart Cities
Athulya Govindan
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What is the oldest language in the world?
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Maps! The Earliest Language(“A picture is worth a 1000 words”)
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GIS is great tool to COMMUNICATE and visualize the concept of a Smart City to all the stakeholders
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1.Determining Rooftop Solar PotentialWith Geographic location (Lat, Long) along with Digital Elevation Model (DEM), we can determine how much solar radiation reaches a given rooftop.
Calculation uses sun’s path on the sky & shadows cast by another rooftop or trees over the course of the day
BonusCan calculate Carbon Footprint reduction. 1 unit of clean energy produced == 0.612g of CO2 avoided
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Requirements● ArcGIS Desktop 10.3 (+
Spatial Analyst extension)
● Need Python development expertise to develop a Geoprocessing Tool
● ArcGIS JavaScript API (freely available) development required to develop a web app
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2. Asset ManagementMap Assets → Track maintenance → Plan & Redline development → GO paperless → Go Mobile!
Requirement: Any Open Source GIS software (QGIS)
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Create DashboardsUse Asset Mgmt to build dashboards and perform spatial queries
E.g.
No. of residents in a block who are affected by an power outage
Security camera coverage requirement
Allow residents to map problems (like location of stagnant water, broken wall,..)
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3. Rainwater MgmtUse GIS site selection models to plan and identify locations where stormwater/rainwater can be collected
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Central Idea
➔ Use the gradientUse GIS elevation models to identify the natural gradients to identify where rainwater collects naturally with least manual intervention
➔ Site selectionPrioritize site selection using existing infrastructure, soil conditions, elevations and volumetric calculations
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4. CALCULATE DRIVE/WALK TIMES TO FACILITIES
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Central IdeaGiven a road network and speed of movement (Walk/drive) on any particular road, we can create polygons from a facility.
➔ Use Distance formula to convert Speed into Drive/Walk Times
➔ Connect the break points and create a polygon
➔ This represents a Service Area Polygon
➔ Find areas served within 5 mins, 10 mins, 15 mins… from different facilities (hospitals, fire stations, public transport stops, …)
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Why should we embrace GIS
GIS Expertise not required A spatial mindframe is all that is required
Open GIS data/tools availableAnd becoming better than proprietary tools
Easily SCALABLESize of the township doesn’t matter
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thank you.