1 esci, hyderabad web gis by kaval kumar dasanla kaval kumar dasanlafacultyesci,hyderabad
TRANSCRIPT
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ESCI, Hyderabad
Web GISWeb GIS
ByBy
KAVAL KUMAR DASANLAKAVAL KUMAR DASANLAFACULTYFACULTY
ESCI,HyderabadESCI,Hyderabad
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“a computer system designed to allow users to collect, manage and analyze large volumes of spatially referenced information and associated attribute data”.
“a computer based system used to input, store, retrieve, and analyze geographic data sets. The GIS is usually composed of map-like spatial representations called layers which contain information on a number of attributes such as elevation, land ownership and use, crop yield and soil nutrient levels”
“A computerized system that provides advanced capabilities for the processing and interpretation of spatial information from the real world”
“GIS is a "smart map" tool that allow users to create interactive queries (user created searches), analyze the spatial information, and edit data”
INTEGRATION OF SPATIAL DATA & NON SPATIAL DATA
GIS - Geographic Information SystemsGIS - Geographic Information Systems
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Major Stages of GIS
• Raster to Vector conversion
• Topology Build
• Editing
• Geo-reference
• Projection
• Thematic mapping
• Data Integration
• Customisation
• Users -Implementation
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APPLICATIONS
• Natural resource management
• Agriculture
• Landuse planning
• Rural Development
• Urban planning
• Disaster Management
• Forestry
• Geology- Morphology, Groundwater
• Watershed management …..
Decision support & Admin
PolicingMunicipalUtility sectorHealthEducationIrrigationLand RecordsDevelopment programsTransportTourismArcheologyCrop InsuranceHousing …..
Application areas
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PROJECT DETAILS
The Project is dealt in FOUR PHASES:
• Phase 1: Base map preparation.
• Phase 2: Property survey and utility mapping
• Phase 3: GIS application development.
• Phase 4: Web enabled GIS development
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METHODOLOGY - IReview of existing system
Collection of data available withMunicipality, PHED etc.
Procurement of high resolutionSatellite data
Geo-coding and Georeferencing of Satellite Imagery
Base Map Preparation showingall Physical Features
Generation of contour overlay at1 m/0.5m interval
Preparation of 1:1000 Maps forField Verification
Inc locality, ward, mun boundaries
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PREPARATION OF UPDATED BASE MAP
REQUIREMENTS
• High Resoultion satellite data with Physical Features and 1m/0.5m interval contour information
• Updated Maps and Records of Properties
• Infrastructure to develop a Customized GIS
Package
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• Large scale base map covering entire municipal limit.
• GPS ground control survey for geo-coding & geo- referencing.
• 1m Contour maps for upland towns and 0.5m contour interval for coastal towns.
• Above data sets in softcopy format for easy integration with block boundaries, ward boundaries, etc.
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Updated base maps.
Property information captured : plot area, plinth area, property assessment numbers, land use, etc..
Utilities mapped: water supply, under ground drains, street lighting, roads, etc..
Application of GIS software
H.R.D. Capacity Enhancement - awareness of GIS by municipal staff
SCOPE OF THE ASSIGNMENT …..CONTD….
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BASEMAP STATUS WITH THE ULBS
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ESCI, HyderabadSAMPLE OUTCOME
Property usage map
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Road network of all types of roads with associated
details.
Rivers and drainage systems including all water
bodies.
Railways with associated details.
All built up structures such as human settlements,
industries, educational, recreational, religious etc.
Utility services such as water supply, sewerage
system, power distribution etc.
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Cadastral boundaries
Contour at one meter / 0.5 meter interval.
Green cover
Others - based on local conditions
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IKONOS DATA OF PART OF MACHILIPATNAM
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FEATURE EXTRACTION FROM IKONOS IMAGE
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VECTORISED LAYER OF PART OF MACHILIPATNAM
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IKONOS DATA OF PART OF MACHILIPATNAM
Municipal Office
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CONTOUR MAP OF MACHILIPATNAM MUNICIPALITY
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BASE MAP BEFORE FIELD SURVEY
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Properties & utilitiesSurvey
Check Prints to municipality
Incorporations and suggestionsbased on feedback
Development of GIS
Customization & Application development for:Revenue, Town planning, Engineering, Sanitation, etc.
MIS Integration
Training and Operationalisation Of GIS at Municipal Office
Preparation of Base Map
Manual updation
Generation of plots forProperty & Utility Survey
Properties surveyAssessment numberPlinth areaPlot areaBuilding heightNo. of floorsType of constructionLand use
Utilities surveyWater supplyUnder ground drainageSurface drainsStreet lightingRoads
Base map updation using CADsoftware
APPROACH AND METHODOLOGY
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METHODOLOGY - IIReview of existing system
Collection of data available withMunicipality, PHED etc.
Procurement of high resolutionSatellite data
Geo-coding and Georeferencing of Satellite Imagery
Base Map Preparation showingall Physical Features
Generation of contour overlay at1 m/0.5m interval
Preparation of 1:1000 Maps forField Verification
Inc locality, ward, mun boundaries
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DETAILS OF PROPERTY AND UTILITY MAPPING AND DEVELOPMENT OF GIS
The details of properties assessment number (housenumber wise)
Plot and building boundaries measured.
Building height approximated to the nearest meter with number of floors
Usage of building with trade specification if any
Type of structure
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Water Supply details:
Details of intake works including pump station (if any) Raw water mains Treatment plant(s) Built distribution, transmission Reservoir tanks including balancing tanks and bor
In relation to the above material, age and capacity are collected.
Information on the distribution system :
The diameter, age, material and condition of pipe The location of valves and bulk meters House service connections, public stand posts inter-
connections and valves on each line and separately Transmission mains including pressure mains
PROPERTY AND UTILITY MAPPING & DEVELOPEMNT OF GIS ………contd……..
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Underground Drainage
Trunk sewers, main sewers and sub main sewers The location of manholes, center to center distance
from upstreams manholes and from downstream manholes, house service connections
The diameter, age, material and conditions of pipe
Surface Drains
The main town level drains with final disposal points The intermediately drains and all other drains Cross section of all drains with clear width and depth
(levels)
PROPERTY AND UTILITY MAPPING & DEVELOPEMNT OF GIS ………contd……..
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Street Lighting
Street lighting network system with information abouttransformers, electric poles, high mast lighting, status of working condition etc.
Roads
Road network system with clear hierarchy Information relating to right of way, carriage way,
width of footpath Information relating to type, condition
PROPERTY AND UTILITY MAPPING & DEVELOPEMNT OF GIS ………contd……..
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Data on property and utilities network:
1. Actual measurement of locations and assets in the field.
2. Abstraction of details from 'as built' drawings.
3. Information from adhoc sources such as field books in local offices and knowledge from long serving employees.
PROPERTY AND UTILITY MAPPING & DEVELOPEMNT OF GIS ………contd……..
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PROPERTY AND UTILITY SURVEY
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MANUALLY UPDATED FIELD BASE MAP
PROPERTY & UTILITY SURVEY
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DIGITALLY UPDATED BASE MAP
PROPERTY & UTILITY SURVEY
BASE MAP BEFORE FIELD SURVEY
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CUSTOMISED GIS APPLICATIONS
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DATA COLLECTION PROFORMA
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BEFORE PHYSICAL SURVEY AFTER PHYSICAL SURVEY
Base Map v/s Updated field map
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Door numbering system
We propose to conduct detailed study on the existing door numbering system in GHMC area provision of door numbers for vacant sites and a new simplified & rationale numbering system will be developed in consultation with GHMC
Rust free steel number plates to the buildings with the given specifications of 10’ X 5’ MS pre coated 1mm thickness plate with letters in white and blue background colour.
The vacant sites will also be given continuous number.
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Existing System of House Numbering
• The present House Numbering System consists of Ward - Block - House number and the same is being followed since long.
• The house numbers are not in a continuous series. When a new house comes into existence in between the existing numbers, sub nos. and bye-numbers are given without any order, causing further confusion
• Entire GHMC will be divided into different blocks. Block boundaries will be drawn in such a way that the boundary is clearly identifiable on ground with reference to land marks.
• In the new system the entire city will be delineated into Localities and Main roads. The premises are numbered in the Localities and Main Roads separately in a continuous series.
• 5-digit Locality Code Number is proposed to be given for all the localities, where, first two digits represent Ward Number and the last three digits represent the Locality Number. Similarly all the Main roads are also given unique Code numbers for identification
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Delineation of Localities • Localities are proposed to be delineated in each ward, with
the following parameters• The locality is viable in terms of area and population and has
distinct boundaries. • The name of the area is prominent with reference to name of
colony, Revenue Village, Post Office, GHMC Council ward etc.
• The Area is to delineated with reference to ward boundary, Broad Network of roads, Physical Boundaries like Watercourses, Drains, and Railway Lines etc.
• While delineating the areas smaller localities, colonies, slums that are locally known with reference to prominent locality name are included and comprehensive area is delineated.
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Assignment of House Numbers
• Each premises built-up / open will be assigned with one number. • Each Apartment / Commercial Complex will be assigned, with one general number. • Each Flat / Shop / Unit will be assigned with by-numbers. • Slums which are prone for changes will be assigned two or block wise numbers easy location the houses. • Normally the numbering in a locality would start from the corner nearer to the city centre. • The street that nearer to the city centre will be numbered as street number 1. • Similarly numbering on main roads will be done from one end of the road to the other end and continue the series on the other side till the starting end. A locality may abut main road / roads where there will be separate series of numbers. • Detailed locality plans will be prepared for all localities, main roads
showing the locality boundaries, streets, lanes, premises with old and new numbers.
• House / Premises numbers displayed and street boards are fixed.
APPLICATION DEVELOPMENT
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Showing the selected road attributes
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Sample web pages showing the Road Attributes
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Sample web pages showing the gRIS
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Module Name Scope
Town Planning Module
User interface for entry of application for layout approval
Work-flow implementation for layout approval process
User interface for capturing the land-use conversion information
User interface for capturing encroachments/plan violations
Development of application logic for automation door-number generation process
Property Tax
(Property Tax Calculation
Fresh Assessment
Transfer of ownership
Sub division of property )
Development of business logic for calculation of MRV and automated tax calculation Search Functionality for Properties based on various parameters defined for the propertiesDemand notice generation process for property tax including calculation of pending taxes and arrears, collection of taxesDevelopment of application for recording and tracking the Hearing & settlementsDevelopment of user interface for digitization of the existing properties non-spatial data in the CorporationDevelopment of application for entering the new properties data including necessary business logic and work-flow
Proposed Scope –Application Development
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Property Tax
Application Development-Module Customization
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Vacant Land Tax
Application Development - Module Customization
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• No. of properties mapped and data collected through survey formats shall be same.
• No property shall be left without integration of non-spatial data.
• All polygon themes shall have feature area in attribute tables.
• All polygon themes should not have any silver polygons.
• All maps should be demarcated with specified symbols and colors in the soft copy.
ON COMPREHENSIVE SURVEY PLAN
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• The ward wise road network type and condition of all layers .
• Road widths, schedules, landmarks.
• The hatch pattern for roads type and color for condition in all wards.
• Major landmarks in all wards.
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• Ward wise drainage network.
• The ward wise type and condition.
• Flow direction in all wards.
• Schedules landmarks drain condition and type
• Culverts in blocks.
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CHECKLIST FOR WATER SUPPLY
• Ward wise water supple network in layers (type and condition).
• Flow direction in all wards.
• Reservoirs and water sources in blocks.
• Valves, pump sets, power bores, landmarks, legend in all wards
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• Ward wise street lighting maps --in types and condition of layers.
• Garbage bins, dust bins -- type and condition
• Street lights type and condition in all wards.
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ESCI, Hyderabad
• Shape files and Arc map document (.mxd) ward wise and sector wise to be submitted.
• Fair maps data with specified colors and symbols to be submitted in A1/A0 size.
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ESCI, Hyderabad
• User needs assessment and requirements specifications.
• Project Planning.
• Database designing.
• Verification/editing of data.
• Database development.
• Application Coding.
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ESCI, Hyderabad
• Database used: SQL server 2000, Arc SDE 9.1
• Platform: NET
• Front-End: ASP, ASP. net, C#.
• Back-end: SQL Server2000, Arc SDE 9.1
• Web server: IIS 6.0
• Application Server/Spatial Server: Arc IMS 9.1