Metadata: Identification_Information: Citation: Citation_Information: Originator: NHDOT Bureau of Planning & Community Assistance Publication_Date: 20241010 Title: NH Public Roads Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Concord, New Hampshire Publisher: NH Department of Transportation, Bureau of Planning & Community Assistance Other_Citation_Details: NHDOT 2024 Quarterly Snapshot Online_Linkage: Online_Linkage: Description: Abstract: Statewide dataset containing the location of state, local and selected private roads and their associated attributes, including road names. For attribute data dictionary, see the file RDIUserGuide.pdf Purpose: The data may be used to map the statewide road network, and/or to query for physical and administrative features of individual road segments. Supplemental_Information: Data distribution tile: statewide NH Public Roads represents the most frequently distributed dataset. Additional transportation-related datasets may be available directly from NHDOT. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20241010 Currentness_Reference: NHDOT road network as of October 10, 2024 Status: Progress: Complete Maintenance_and_Update_Frequency: Quarterly Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -72.593213 East_Bounding_Coordinate: -70.675318 North_Bounding_Coordinate: 45.285680 South_Bounding_Coordinate: 42.693946 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Public Roads Theme_Keyword: Road Inventory Theme_Keyword: Roads Theme_Keyword: Private Roads Theme_Keyword: State Roads Theme_Keyword: Road Network Theme_Keyword: Transportation Theme_Keyword: Transportation Networks Place: Place_Keyword_Thesaurus: None Place_Keyword: United States Place_Keyword: Northeast Place_Keyword: New England Place_Keyword: New Hampshire Access_Constraints: This data set is the property of the State of New Hampshire and is available for public use under the State's Right-to-Know laws. Use_Constraints: This data set is under continual review and is not guaranteed to be free of errors or omissions. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Glenn L Davison, PE Contact_Organization: NHDOT Bureau of Planning & Community Assistance Contact_Position: GIS Project Manager Contact_Address: Address_Type: mailing and physical address Address: NH Department of Transportation, Bureau of Planning & Community Assistance Address: PO Box 483, 7 Hazen Drive City: Concord State_or_Province: NH Postal_Code: 03301-0483 Contact_Voice_Telephone: (603)271-7145 Contact_Facsimile_Telephone: (603)271-8093 Contact_Electronic_Mail_Address: gdavison@dot.state.nh.us Hours_of_Service: 8 AM to 4:30 PM Data_Set_Credit: New Hampshire Department of Transportation, Bureau of Planning & Community Assistance Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attributes are collected by field inspection and verified by logical and visual validation. Logical_Consistency_Report: The data set was generated from a centerline base layer that is part of a geodatabase topology Completeness_Report: These data represent statewide coverage, although they are continually being updated and enhanced. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The coordinate data were generated from standard USGS 1:24,000/1:25,000-scale Digital Line Graphs, augmented by and improved with data collected by GPS and post-processed. They meet National Map Accuracy standards. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Vertical positional accuracy is not assessed. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: US Geological Survey or another mapping agency in cooperation with USGS Publication_Date: 19900101 Title: Digital Line Graphs - 1:24,000/1:25,000 Edition: 1 Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Reston, VA Publisher: US Geological Survey Other_Citation_Details: None Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: US Geological Survey Publication_Date: Unknown Title: National Cartographic Database Publication_Information: Publication_Place: Reston, VA Publisher: US Geological Survey Online_Linkage: Source_Scale_Denominator: 24000 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19530101 Ending_Date: 19900101 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: DLG-3 Source_Contribution: The DLG files provided the basic coordinate information for the statewide road network. Process_Step: Process_Description: Roadway centerline for the state system has been re-aligned to the state's 2010 high-resolution ortho imagery (1 foot resolution) or updated using sub-meter GPS coordinates. Local roadway network is being updated to the 2010 imagery. Road names are being coordinating with New Hampshire Department of Safety, Emergency Management E-911. Current Projection NH State Plane 83 Source_Used_Citation_Abbreviation: NHDOT SDE Highway_Roads Feature Class Process_Date: Unknown Source_Produced_Citation_Abbreviation: NH Public Roads Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 112,575 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Transverse Mercator Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999967 Longitude_of_Central_Meridian: -71.666667 Latitude_of_Projection_Origin: 42.500000 False_Easting: 984250.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000328 Ordinate_Resolution: 0.000328 Planar_Distance_Units: survey feet Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: For a complete description of the attribute information, see the file 2018RDIUserGuide_Oct30.pdf Entity_and_Attribute_Detail_Citation: See 2018RDIUserGuide_Oct30.pdf Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Earth Systems Research Center, University of New Hampshire Contact_Person: GRANIT Database Manager Contact_Position: GRANIT Database Manager Contact_Address: Address_Type: mailing and physical address Address: Morse Hall, University of New Hampshire City: Durham State_or_Province: NH Postal_Code: 03824 Contact_Voice_Telephone: 603-862-1214 Contact_Facsimile_Telephone: 603-862-0188 Contact_Electronic_Mail_Address: granit@unh.edu Hours_of_Service: 9 AM - 5 PM, EST Resource_Description: Downloadable Data Distribution_Liability: These digital data represent the efforts of the NH Department of Transportation to deliver an accurate statewide road network with updated road inventory information. No claim is made as to the validity or reliability or to any implied uses of these data. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ESRI Shapefile Transfer_Size: 306 Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: ESRI Shapefile Fees: No charge when downloaded from website. Cost of reproduction for provision on CD/DVD or other media. Metadata_Reference_Information: Metadata_Date: 20241010 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Glenn L Davison, PE Contact_Organization: NHDOT Bureau of Planning & Community Assistance Contact_Position: GIS Project Manager Contact_Address: Address_Type: mailing and physical address Address: NH Department of Transportation, Bureau of Planning & Community Assistance Address: PO Box 483, 7 Hazen Drive City: Concord State_or_Province: NH Postal_Code: 03301-0483 Contact_Voice_Telephone: (603)271-7145 Contact_Facsimile_Telephone: (603)271-8093 Contact_Electronic_Mail_Address: gdavison@dot.state.nh.us Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: This data set is the property of the State of New Hampshire and is available for public use under the state Right-to-Know laws. Metadata_Use_Constraints: This data set is under continual review and is not guaranteed to be free of errors or omissions. Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile