Data and mapping of properties and utilities can be derived from a No. of sources such as actual measurements of the locations and assets in the field books and from long serving employees.

In this phase, Hard copies of the base map to a scale 1:500 are generated for conducting field survey. The entire area is divided into grids of 4 Sq. Km. each of this grid was further sub-divided into 16 small grids covering 0.25 Sq. Km. each.

The following standard specifications have been given below and all Properties & Utilities shall be classified based on the features:

Table – 1: Property Details

S. No.	Theme Name	Feature Classification	Code ID	Symbology to be used in updated base maps
1	Plot	Independent House Group Houses Vacant plots Open lands Parks Play grounds Graveyards Educational Institutions Govt. Offices Apartments Other Structures	21 22 23 24 25 26 27 28 29 30 31	Specified in the legend

 

Table – 2: Utilities:

S. No.	Theme Name	Feature Classification	Code ID	Symbology to be used in updated base maps
1	Roads	BT WBM KACCHA CC	32 33 34 35	Specified in the legend

The following color code shall be depicted for the various conditions of the infrastructure:

• A – Green color for good condition
• B – Yellow color for Minor repairs
• C – Brown color for Medium repairs
• D – Red color for Major repairs likely badly damage for reconstruction.
• E – Black color for ward boundaries.

In Utility they are 6 themes viz.,

• Roads: Type of Roads, Carriage width, Age, Condition of pavement, Lease Lands, Municipal               Vacant Lands, Parks and Playground, Buildings, Community Hall, Function Hall,               Auditorium.

• Water supply: Type of pipe, Age, Dia of Valum, Condition, Pumping station and Pump set,                           Contours.

• Open Drains:  Type of Drain, Age, Condition , Present Value, Etc.,

• Under Ground Drainage: Mains, Sub-mains, Laterals, Condition,  Main holes.

• Street Lights: Type of lights, Age, Condition, Service No. Power Bores, Depth of Bore well.

• Solid Waste Management: Dustbin, Garbage, Mode of Transportation, Type of wastage,                                                sanitary vehicles & Tricycles.

Data Base Structure in GIS:

Field Name	Input width	Output width	Type	Decimal Places	Remarks
Unique-ID	10	10	No.
ULB Name	50	50	Character
Road No.	10	10	Character
Ward No.	50	50	Character
Locality	50	50	Character
From H. No.	15	15	Character		From H.No to H.No.
To H. No.	15	15	Character
Type	10	10	Character
Length	10	10	No.	4
Carriage width	10	10	No.	4
Age	4	4	No.	2	Age in years
Condition	20	20	Character
Shou-Prov	20	20	Character		Whether shoulder provision is required
Pr-Value	20	20	Character		Present value

The following details are given below: -

      Properties:

• Plot and building boundaries measured upto 0.1mt accuracy (including vacant land, parks, play ground etc.,)
• Building height with number of floors.
• Usage of building with trade specification if any.
• Type of Structure.
• Water and drainage connections.

      Roads:

• Road network system with clear hierarchy.
• Information relating to right of way, carriageway, width of footpath.
• Information relating to type, condition.

      Street lighting:

• Street lighting network with information about transformers, electric poles, his mast lighting, status of working condition etc.,

      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).
• Information about type of drains i.e., CC, Brick, etc.,

      Underground Drainage:

• Type of underground drainage like Trunk sewers, main sewers and sub main sewers.
• The location of manholes, house service connections.
• The diameter, age, material and condition of pipe.

     Water supply:

• Details of intake works including pump station (if any)
• Raw water mains.
• Treatment plants.
• Built distribution, transmission
• Reservoir tanks including balancing tanks and bore holes in relation to each of the above records should show, material, age and capacity, top and bottom water level.
• Information on the distribution system should include:
• The diameter, age, material and condition of pipe.
• The location of valves and bulk meters.
• House service connections, public stand posts, interconnections and valves.
• Transmission mains including pressure mains.

 The final output data shall contain the following:

       AUTOCAD Format:  

• Election Ward wise in sector wise like roads, streetlights, water supply, underground drainage and open drains and mosaic in sector wise an asset register in sector wise.

• The polygon themes should not any silver polygons.

• The total No. of properties mapped and data collected through survey formats shall be same.

• No property feature shall be left without integration of Non-special data.

      GIS Format:   Shape files and arc map documents, ward wise and sector wise.

     Ward wise Maps:                                                    

• 1:500 for Property mapping
• 1:2500 for Roads, Drains, Sewerage & Community toilets, Street lighting and Solid waste management, Water    pumps, hand pumps and public stand posts.
• 1:10000 for mapping the water transmission system.