Fire First Due Areas of Loudoun County, VA (2011)

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Loudoun County, Virginia, Department of Fire, Rescue and Emergency Management
Publication_Date: 20110630
Publication_Time: 000000
Title: Fire First Due Areas of Loudoun County, VA (2011)
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: see distribution information
Description:
Abstract:
This feature class defines each fire company's first due area in Loudoun County. The first due area is the area for which a given fire company would have the first unit dispatched to respond to a 911 call.
Purpose:
This feature class defines the extent of each fire company's first due area.
Supplemental_Information:
Data are stored in the corporate ArcSDE Geodatabase as a polygon feature class. The coordinate system is Virginia State Plane (North), Zone 4501, datum NAD83 HARN (vertical datum, if applicable, NAVD88), US Survey foot units.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -78.006804
East_Bounding_Coordinate: -77.286160
North_Bounding_Coordinate: 39.355232
South_Bounding_Coordinate: 38.814998
Keywords:
Theme:
Theme_Keyword_Thesaurus: none; employee generated
Theme_Keyword: Fire
Theme_Keyword: Company
Place:
Place_Keyword_Thesaurus: none; employee generated
Place_Keyword: County
Place_Keyword: Loudoun
Place_Keyword: Virginia
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: society
Theme_Keyword: health
Access_Constraints: None
Use_Constraints:
These data were generated for use by Loudoun County and are available to the public. These data are intended for use at 1:2400 scale or smaller. Acknowledgement of Loudoun County would be appreciated in products derived from this data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Loudoun County, VA, Department of Fire, Rescue, & Emergency Management
Contact_Address:
Address_Type: mailing and physical
Address: 803 Sycolin Rd
City: Leesburg
State_or_Province: VA
Postal_Code: 20175
Country: US
Contact_Voice_Telephone: (703)777-0333
Contact_Facsimile_Telephone: (703)771-5359
Hours_of_Service: 24 hours
Native_Data_Set_Environment:
Microsoft Windows Server 2008 Version 6.0 (Build 6002) Service Pack 2; ESRI ArcGIS 10.0.3.3600
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Retention of attribute accuracy throughout the coverage to geodatabase feature class coversion process was ensured by a QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have, on a record by record basis, identical attribution when comparing all concatenated fields to all the user-defined attribution.
Logical_Consistency_Report: Topologically clean
Completeness_Report:
Features may have been eliminated or generalized due to scale and intended use. To assist Loudoun County, Virginia in the maintenance of the data, please provide any information concerning discovered errors, omissions, or other discrepancies found in the data.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Retention of coordinate accuracy throughout the coverage to geodatabase feature class conversion process was ensured by a QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have the same record total, and on a record by record basis, area, perimeter, and length differential of less than +/- 0.5%.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Department of Fire, Rescue, and Emergency Management
Publication_Date: 19880101
Publication_Time: 000000
Geospatial_Data_Presentation_Form: map
Type_of_Source_Media: hardcopyPaper
Source_Contribution: Fire and Rescue Chiefs agreed on due area boundaries.
Process_Step:
Process_Description:
The first due and box areas in this layer were developed in 1988 by agreement with Fire and Rescue Chiefs based on hand drawn maps.
Process_Date: 19980105
Process_Time: 000000
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Department of Fire, Rescue, and Emergency Management
Process_Step:
Process_Description:
This data set was part of a batch process that converted legacy data from ArcInfo coverage in Librarian to a single-tiled ArcInfo coverage in preparation for a final coversion to ArcSDE Geodatabase Feature Classes. Data were extracted from Librarian using the EXTRACT TOPOLOGICAL command. Multi-tiled data sets were extracted into multiple coverages and then combined based on the feature type(s). Layers with both polygon and arc feature classes were processed with the Arc commands, MAPJOIN and DISSOLVE. Arc feature classes alone were processed with the Arc commands, APPEND and DISSOLVE. Layers with both arc and point feature classes and point feature classes alone were processed with the Arc command, APPEND. When used, the Arc command, DISSOLVE, was given with the <#all> option. All coverages were then reprojected to HARN 83 using the following .prj file specifications: INPUT PROJECTION STATEPLANE UNITS FEET ZONE 5551 DATUM NAD27 NADCON PARAMETERS OUTPUT PROJECTION STATEPLANE UNITS FEET FIPSZONE 4501 DATUM HPGN NADCON PARAMETERS END This dataset was then converted to a feature class in a geodatabase in ArcSDE.
Process_Date: 20040126
Process_Time: 000000
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Department of Fire, Rescue, and Emergency Management
Process_Step:
Process_Description:
The fire company boundaries were redrawn after the creation of a new public safety layer called PSRESPONSE, which identifies both the appropriate Fire & EMS within a designated first due area.
The updated PSFIRE layer was generated by running a dissolve on the FDISTRICT_NAME attribute field in the PSRESPONSE layer. This resulted in only the individual fire companies' boundaries being shown in the updated layer. Any edits to this layer is done after edits are complete for the PSRESPONSE layer.
Process_Date: 20081230
Process_Time: 000000
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Department of Fire, Rescue, and Emergency Management
Contact_Position: Fire and Rescue Chiefs
Process_Step:
Process_Description:
Fire Due Areas' boundaries are potentially updated at any time throughout the year, as a result of the original "parent" PSRESPONSE layer being updated (daily for roads or bi-yearly for first due analysis) After the PSRESPONSE's boundaries are edited, the new PSFIRE layer is generated by following the same process in the 08' update. The DISSOLVE tool is used to dissolve fire boxes into larger areas.
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Loudoun County, VA, Office of Mapping and Geographic Information (OMAGI)
Contact_Position: GIS Systems Analyst
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Loudoun County
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 28
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 HARN StatePlane Virginia North FIPS 4501 Feet
Lambert_Conformal_Conic:
Standard_Parallel: 38.03333333333333
Standard_Parallel: 39.2
Longitude_of_Central_Meridian: -78.5
Latitude_of_Projection_Origin: 37.66666666666666
False_Easting: 11482916.66666666
False_Northing: 6561666.666666666
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.00020833333333333297
Ordinate_Resolution: 0.00020833333333333297
Planar_Distance_Units: Foot_US
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983 HARN
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: GISDBB.GISBROW.PSFIRE_POLY
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: RS_FDISTRICT
Attribute_Definition: Unique code to identify Fire Company responsible for due area
Attribute_Definition_Source: Department of Fire, Rescue, and Emergency Management
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: See Overview Description for data dictionary of attribute
Attribute:
Attribute_Label: RS_FDISTRICT_ABBREV
Attribute_Definition: Abbrevation for Fire Company responsible for due area
Attribute_Definition_Source: Department of Fire, Rescue, and Emergency Management
Attribute_Domain_Values:
Unrepresentable_Domain: See Overview Description for data dictionary of attribute
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: See Overview Description for data dictionary of attribute
Attribute:
Attribute_Label: RS_FDISTRICT_NAME
Attribute_Definition: Name of Fire Company responsible for due area
Attribute_Definition_Source: Department of Fire, Rescue, and Emergency Management
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value:
See Overview Description for RS_FDISTRICT_ABBREV for name values
Attribute:
Attribute_Label: SHAPE
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: DB2GSE.ST_Area(SHAPE)
Attribute_Definition: Area of first due area in internal units
Attribute_Definition_Source: Loudoun County
Attribute_Domain_Values:
Unrepresentable_Domain: Positive whole number automatically geneated
Attribute:
Attribute_Label: DB2GSE.SdeLength(SHAPE)
Attribute_Definition: Loudoun County
Attribute_Domain_Values:
Unrepresentable_Domain: Positive whole number automatically geneated
Overview_Description:
Entity_and_Attribute_Overview:
RS_FDISTRICT_ABBREV: Abbrevation for Fire Company responsible for due area
Entity_and_Attribute_Detail_Citation:
Abbrev Company
LB Leesburg PV Purcellville MB Middleburg RH Round Hill HM Hamilton AB Ashburn AL Aldie PH Philomont AR Arcola LK Lucketts SP Sterling Park MF Moorefield LV Lovettsville NV Neersville CS Cascades DUL Dulles SR South Riding LD Lansdowne CC Clarke County, VA FQ Fauquier County, VA FR Frederick County, MD FX Fairfax County, VA JEFF Jefferson County, WV MONT Montgomery County, MD PW Prince William County, VA WASH Washington County, MD
Overview_Description:
Entity_and_Attribute_Overview:
RS_FDISTRICT: Unique code to identify Fire Company responsible for due area
Entity_and_Attribute_Detail_Citation:
Code Company
01 Leesburg 02 Purcellville 03 Middleburg 04 Round Hill 05 Hamilton 06 Ashburn 07 Aldie 08 Philomont 09 Arcola 10 Lucketts 11 Sterling Park 12 Lovettsville 16 Neersville 18 Cascades DU Dulles 19 South Riding 20 Leesburg 21 Clarke County 22 Lansdowne 23 Moorefield FQ Fauquier County, VA FR Frederick County, MD FX Fairfax County, VA JEFF Jefferson County, WV MONT Montgomery County, MD PW Prince William County, VA WASH Washington County, MD
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Loudoun County, VA, OMAGI
Contact_Position: Public Information Counter
Contact_Address:
Address_Type: mailing and physical
Address: MS 65
Address: 1 Harrison Street S.E., 2nd floor
City: Leesburg
State_or_Province: VA
Postal_Code: 20175
Country: US
Contact_Voice_Telephone: (703)771-5778
Contact_Facsimile_Telephone: (703)771-5075
Contact_Electronic_Mail_Address: mapping@loudoun.gov
Hours_of_Service: 8:00-4:30 EST, M-F
Distribution_Liability: See access and use constraints information.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: DXF
Format_Specification: AutoCad Digital Exchange File
Digital_Transfer_Option:
Offline_Option:
Offline_Media: dvd
Fees:
Loudoun County distributes spatial data in ArcGIS databaase or shapefile & DXF format for the cost of reproduction. Countywide spatial datasets may be purchased for $22 per DVD for up to 4.5 GB of data. There is a $100 surcharge to purchase countywide topography, and a $3 charge if the item is to be mailed. If the customer wants the data in DXF format and/or would like OMAGI to custom select specific geographic areas of the County, there is an additional $7 per 15 minute increment labor charge. Select aerial imagery is also available.
Ordering_Instructions:
Size limit: 4.5 GB. Visit our website at: <http://www.loudoun.gov/omagi>, click on "Loudoun County Mapping Documents & Order Forms." The "Forms" directory will lead you to custom & standard (countywide) data order forms. Hardcopy maps may also be available; please contact the Mapping Office Public Information Counter for more information regarding all data requests.
Metadata_Reference_Information:
Metadata_Date: 20120619
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Loudoun County, VA, OMAGI
Contact_Position: Metadata Specialist
Contact_Address:
Address_Type: mailing and physical
Address: MS 65
Address: 1 Harrison Street SE, 2nd Floor
City: Leesburg
State_or_Province: VA
Postal_Code: 20175
Country: US
Contact_Voice_Telephone: (703)771-5778
Contact_Facsimile_Telephone: (703)771-5075
Contact_Electronic_Mail_Address: mapping@loudoun.gov
Hours_of_Service: 8:00-4:30 EST, M-F
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Use_Constraints:
This metadata reflects the source Geodatabase format and specific elements may not apply if your data is exported to SHP or DXF products. User must be aware that changes to data schema occur during data export that may not be reflected in this metadata, which represents Loudoun County's corporate geodatabase. Acknowledgement of Loudoun County would be appreciated in the use of this metadata.
Generated by mp version 2.9.6 on Tue Jun 19 12:41:13 2012