Major Roads of the United States (USGS DLG) 1:2,000,000

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 2000

Title: Major Roads of the United States (USGS DLG) 1:2,000,000

Series_Information:

Series_Name: United States Geological Survey, Digital Data Series

Issue_Identification: 59

Description:

Abstract:

The data set portrays the major roads in Alaska. The file was produced by joining the individual State roads layers from 2,000,000-scale Digital Line Graph (DLG) data produced by the USGS. This is a revised version of the June 1998 data set.

Purpose:

These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 2,000,000-scale data. No responsibility is assumed by the U.S. Geological Survey in the use of these data.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1972

Ending_Date: 1996

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -165.4479

East_Bounding_Coordinate: -131.6176

North_Bounding_Coordinate: 72

South_Bounding_Coordinate: 55.3264

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: roads

Theme_Keyword: highways

Theme_Keyword: Interstate highway

Place:

Place_Keyword: USA

Place_Keyword: Alaska

Access_Constraints: None

Use_Constraints:

None. Acknowledgment of the National Atlas of the United States of America and (or) the U.S. Geological Survey would be appreciated in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Steve Kambly

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing address

Address: 561 National Center

City: Reston

State_or_Province: VA

Postal_Code: 20192

Contact_Voice_Telephone: 703-648-5094

Contact_Electronic_Mail_Address: skambly@usgs.gov

Data_Quality_Information:

Logical_Consistency_Report:

No additional checks for topological consistency were performed on this data set.

Completeness_Report:

This data set includes roads for Alaska. Data completeness generally reflects the content of the original DLG files.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1995

Title: 2,000,000-scale Digital Line Graph Data -Roads

Publication_Information:

Publication_Place: Reston, VA

Publisher: U.S. Geological Survey

Source_Scale_Denominator: 2000000

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1970

Ending_Date: 1995

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: 2MILRD

Source_Contribution: Spatial and attribute information

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1998

Title: Major roads and trails of the United States

Publication_Information:

Publication_Place: Reston, Virginia

Publisher: U.S. Geological Survey

Source_Scale_Denominator: 2000000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1998

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: ATLAS-RD

Source_Contribution: spatial and attribute information

Process_Step:

Process_Description:

The 2MILRD data file was originally digitized by the National Mapping Division based on the sectional maps contained in 'The National Atlas of the United States of America' published by the USGS in 1970. Updates to the 2MILRD file were made based on the National Highway Planning Network database published by Federal Highway Administration. Using ARC/INFO software, the updated State DLG optional format files were converted to ARC/INFO coverages using the DLGARC command. The individual State coverages were then merged together using the ARC/INFO command APPEND. The resulting data set was ATLAS-RD. The dataset was then clipped to Alaska.

Source_Used_Citation_Abbreviation: 2MILRD

Process_Date: 1998

Source_Produced_Citation_Abbreviation: ATLAS-RD

Process_Step:

Process_Description:

Roads for Puerto Rico and the U.S. Virgin Islands were added using 2MILRD.

Source_Used_Citation_Abbreviation: 2MILRD

Process_Date: 1999

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference:

U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Washington, D.C., National Institute of Standards and Technology. U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and The Outlying Areas of the United States, and Associated Areas Washington, D.C., National Institute of Standards and Technology. U.S. Department of Commerce, 1990, Counties and Equivalent Entities of the United States, Its Possessions, and Washington, D.C., National Institute of Standards and Technology.

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Complete chain

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000278

Longitude_Resolution: 0.000278

Geographic_Coordinate_Units: Decimal Degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum 1983

Ellipsoid_Name: GRS1980

Semi-major_Axis: 6378137

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Road (described by ROADTRL020.AAT or Roadtrl020.dbf)

Entity_Type_Definition: An open way for the passing of vehicles.

Entity_Type_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: Shape

Attribute_Definition: The representation of the entity in the data

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Polyline

Enumerated_Domain_Value_Definition:

1-dimensional element that may or may notsurround a 2-dimensional element.

Enumerated_Domain_Value_Definition_Source: ESRI GIS software

Attribute:

Attribute_Label: Fnode# or Fnode_

Attribute_Definition: Internal number of the from-node

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 31590

Attribute:

Attribute_Label: Tnode# or Tnode_

Attribute_Definition: Internal number of the to-node

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2

Range_Domain_Maximum: 31590

Attribute:

Attribute_Label: Lpoly# or Lpoly_

Attribute_Definition: Internal number of the polygon to the left of the arc

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 84

Attribute:

Attribute_Label: Rpoly# or Rpoly_

Attribute_Definition: Internal number of the polygon to the right of the arc

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 84

Attribute:

Attribute_Label: Length

Attribute_Definition: The length of the arc in coverage units.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.000

Range_Domain_Maximum: 5.337

Attribute:

Attribute_Label: ROADTRL020# or Roadtrl020

Attribute_Definition: Internal feature number

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 47235

Attribute:

Attribute_Label: ROADTRL020-ID or Roadtrl020

Attribute_Definition: User-assigned feature number

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: 47235

Attribute:

Attribute_Label: Feature

Attribute_Definition: Type of road.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value:

Ferry CrossingFerry Crossing Toll RoadLimited Access HighwayLimited Access Highway Alternate RouteLimited Access Highway Business RouteLimited Access Highway Bypass RouteLimited Access Highway In TunnelLimited Access Highway In Tunnel Toll RoadLimited Access Highway Toll RoadLimited Access Highway Truck RouteOther HighwayOther Highway AlternateRouteOther Highway BusinessRouteOther Highway Bypass RouteOther Highway Toll RoadOther Through HighwayOther Through Highway Alternate RouteOther Through Highway Alternate Route BypassRouteOther Through Highway Business RouteOther Through Highway Business Route AlternateRouteOther Through Highway Bypass RouteOther Through Highway In Tunnel AlternateRouteOther Through Highway Toll RoadOther Through Highway Truck RoutePrincipal HighwayPrincipal Highway Alternate RoutePrincipal Highway Alternate Route Bypass RoutePrincipal Highway Business RoutePrincipal Highway Business Route AlternateRoutePrincipal Highway BypassRoutePrincipal Highway InTunnelPrincipal Highway In Tunnel Toll RoadPrincipal Highway TollRoadPrincipal Highway TruckRoute

Enumerated_Domain_Value_Definition:

Route used to transport traffic between twopoints separated by water.Route used to transport traffic between twopoints separated by water and where a travelfee is collected.A route that is part of the United StatesInterstate Highway system or other similarexpressway.A route that substitutes for a United StatesInterstate Highway or other similarexpressway.A route that is part of the United StatesInterstate Highway system or other similarexpressway and is used for commercial traffic.A route that is part of the United StatesInterstate Highway system or other similarexpressway which diverts traffic around atown.A route that is part of the United StatesInterstate Highway system or other similarexpressway which goes through a tunnel.A route that is part of the United StatesInterstate Highway system or other similarexpressway which goes through a tunnel andwhere a travel fee is collected.A route that is part of the United StatesInterstate Highway system or other similarexpressway where a travel fee is collected.A route that is part of the United StatesInterstate Highway system or other similarexpressway and is designated for trucktraffic.A minor State-numbered route or otherconnector road.A route that substitutes for a minorState-numbered route or other connector road.A minor State-numbered route or otherconnector road used for commercial traffic.A minor State-numbered route or otherconnector road used to divert traffic around atown.A minor State-numbered route or otherconnector roads where a travel fee iscollected.A State-numbered route or some less importantUnited States-numbered highway.A route that substitutes for a State-numberedroute or some less important UnitedStates-numbered highway.A route that substitutes for a State-numberedroute or some less important UnitedStates-numbered highway and diverts trafficaround a town.A State-numbered route or some less importantUnited States-numbered highway that is usedfor commercial traffic.A route that substitutes for a State-numberedroute or some less important UnitedStates-numbered highway and is used forcommercial traffic.A State-numbered route or some less importantUnited States-numbered highway that divertstraffic around a town.A route that substitutes for a State-numberedroute or some less important UnitedStates-numbered highway and goes through atunnel.A State-numbered route or some less importantUnited States-numbered highway where a travelfee is collected.A State-numbered route or some less importantUnited States-numbered highway which isdesignated for truck traffic.A United States-numbered highway or mostimportant State-numbered route.A route that substitutes for a UnitedStates-numbered highway or most importantState-numbered route.A route that substitutes for a UnitedStates-numbered highway or most importantState-numbered route and diverts trafficaround a town.A United States-numbered highway or mostimportant State-numbered route used forcommercial traffic.A route that substitutes for a UnitedStates-numbered highway or most importantState-numbered route and is used forcommercial traffic.A United States-numbered highway or mostimportant State-numbered route used to diverttraffic around a town.A United States-numbered highway or mostimportant State-numbered route which goesthrough a tunnel.A United States-numbered highway or mostimportant State-numbered route which goesthrough a tunnel where a travel fee iscollected.A United States-numbered highway or mostimportant State-numbered route where a travelfee is collected.A United States-numbered highway or mostimportant State-numbered route designated fortruck traffic.

Enumerated_Domain_Value_Definition_Source:

U.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological SurveyU.S. Geological Survey

Attribute:

Attribute_Label: State_fips

Attribute_Definition:

The Federal Information Processing Standard (FIPS) code used by the U.S. Bureau of the Census for the State in which the road is located.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 01

Range_Domain_Maximum: 78

Attribute:

Attribute_Label: State

Attribute_Definition:

The name of the State or State equivalent in which the road is located.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

Codes for the Identification of the States,the District of Columbia and the OutlyingAreas of the United States, and AssociatedAreas, FIPS 5-2.

Codeset_Source: U.S. Department of Commerce

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing address

Address:

Box 25386, Building 810, Denver Federal Center

City: Denver

State_or_Province: Co

Postal_Code: 80225

Contact_Voice_Telephone: 1-888-ASK-USGS (1-888-275-8747)

Resource_Description: Digital Data Series DDS-59, Organic Geochemistry Data of Alaska

Distribution_Liability:

Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U. S. Government. Although this data has been used by the U.S. Geological Survey(USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsiblility is assumed by the USGS in the use of these data, software, or related materials.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARCE

File_Decompression_Technique: No compression applied

Digital_Transfer_Option:

Offline_Option:

Offline_Media: CD-ROM

Recording_Format: ISO 9600

Fees: $32.00 for CD-ROM, no charge for online files

Metadata_Reference_Information:

Metadata_Date: 19990405

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Gita Urban-Mathieux

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing address

Address: 521 National Center

City: Reston

State_or_Province: VA

Postal_Code: 20192

Contact_Voice_Telephone: 703-648-5175

Contact_Electronic_Mail_Address: burbanma@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Security_Information:

Metadata_Security_Handling_Description: None

Metadata_Security_Classification: Unclassified

Metadata_Security_Classification_System: None

Please Use The Following Links For Questions and Comments

Central Energy Resources Team, Data Management Project
Charles N. Threlkeld -- Creation of the relational database structure and documentation.
Raymond C. Obuch -- Compilation of ASCII tables and joined tables used in GIS layers, CD-ROM documentation (readme) and CD-ROM mastering..
Gregory L. Gunther -- Creation of GIS layers, web browser design and access for CD-ROM,   FGDC compliant metadata, and CD-ROM organization and content.
David A. Ferderer -- CD-ROM organization and content.

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