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State Route GPS Routes, Washington State Department of Transportation


Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification Information

 Section Index

    Citation:
      Citation Information:
        Originator: Geographic Services and Transportation Data Office, Washington State Department of Transportation
        Publication Date: 5/2007
        Title: State Route GPS Routes, Washington State Department of Transportation
        Geospatial Data Presentation Form: vector digital data
        Publication Information:
          Publication Place: Olympia, Washington
          Publisher: Washington State Department of Transportation
        Online Linkage: At WSDOT: ArcSDE Server: Database: TransFeatures; Owner: Base; Instance: 5151
    Description:
      Abstract:
        A collection of datasets representing a portion of Washington's State Routes created from a combination of Global Positioning System (GPS) data and inertial data are depicted as polylines with measures and State Route identifiers. The location of the lines corresponds to the leftmost general-use lane.
        This dataset is unfinished in that it comprises only mainline routes and includes approximately 1/3 of the ramps.
      Purpose: This data set is used for general-purpose mapping and for use as a Linear Referencing System.
      Supplemental Information:
        The data used to create this graphic layer was collected and edited for use in creating a new high accuracy Locational Referencing System for Washington State highways. The current 500k LRS depicts State Routes with one line representing the highways geographic location and the 24k LRS depicts undivided State Routes with one line and divided routes with two lines. This data set contains lines depicting the centerline of one lane (the leftmost general-use lane) in both directions of travel on divided and undivided State Routes.
    Time Period of Content:
      Time Period Information:
        Range of Dates/Times:
          Beginning Date: 12/1/1998
          Beginning Time: Unknown
          Ending Date: 12/2007
          Ending Time: Unknown
      Currentness Reference: ground condition
    Status:
      Progress: In work
      Maintenance and Update Frequency: Irregular
    Spatial Domain:
      Bounding Coordinates:
        West Bounding Coordinate: -124.674412
        East Bounding Coordinate: -116.861284
        North Bounding Coordinate: 49.042696
        South Bounding Coordinate: 45.504779
    Keywords:
      Theme:
        Theme Keyword Thesaurus: None
        Theme Keyword: highway
        Theme Keyword: SR
        Theme Keyword: state route
        Theme Keyword: roads
      Place:
        Place Keyword Thesaurus: None
        Place Keyword: Washington
        Place Keyword: WA
        Place Keyword: United States
        Place Keyword: USA
        Place Keyword: Pacific Northwest
    Access Constraints: None
    Use Constraints: None
    Point of Contact:
      Contact Information:
        Contact Person Primary:
          Contact Person: Mark Finch
          Contact Organization: Transportation Data Office, Washington State Department of Transportation
        Contact Position: Roadway Systems Branch Manager
        Contact Address:
          Address Type: mailing address
          Address: PO Box 47380
          City: Olympia
          State or Province: WA
          Postal Code: 98504-7380
          Country: USA
        Contact Address:
          Address Type: physical address
          Address: 7345 Linderson Way SW
          City: Tumwater
          State or Province: WA
          Postal Code: 98501
          Country: USA
        Contact Voice Telephone: 360-570-2369
        Contact Facsimile Telephone: 360-570-2400
        Contact Electronic Mail Address: finchm@wsdot.wa.gov
    Data Set Credit: Transportation Data Office, Washington State Department of Transportation
    Native Data Set Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780

Data Quality Information

 Section Index

    Attribute Accuracy:
      Attribute Accuracy Report: State Route identifiers are consistent with the Transportation Information and Planning System (TRIPS) database.
    Completeness Report: This data set contains 100% of the mainline state routes in the state of Washington and approximately 1/3 of the ramps.
    Positional Accuracy:
      Horizontal Positional Accuracy:
        Horizontal Positional Accuracy Report:
          The horizontal accuracy of the GPS and inertial data used to create the State Route lines was tested against photogrammetric quality data (+/- 1 foot) on eight segments of the existing data and survey quality data (+/- 2-5 cm) on eighteen segments of the existing data. For more information about the testing contact Thomas A. Blake (see process step contacts).
        Quantitative Horizontal Positional Accuracy Assessment:
          Horizontal Positional Accuracy Explanation:
            Eight different segments of at least 20 points each were tested against photogrammetric data. The accuracy for all the test points combined (164 points) was 3.297 feet. Of the eight segments, one had a tested accuracy of 5.366 feet.
            Eighteen different segments of at least 20 points each were tested against survey data. The accuracy for all the test points combined (380 points) was 1.549 feet. Of the eighteen segments, one had a tested accuracy of 4.082 feet.
        Quantitative Horizontal Positional Accuracy Assessment:
          Horizontal Positional Accuracy Explanation:
            The GPSLRS500kSPS was created by simplifying the GPSLRSIncSPS data layer. Test points were placed using both layers and compared. The max. difference was 5.613 feet. The max. measure (ARM) difference was 0.001 miles with a horizontal offset of 3 feet.
      Vertical Positional Accuracy:
        Vertical Positional Accuracy Report: Vertical accuracy of this data set has not been determined.
    Lineage:
      Process Step:
        Process Description:
          GPS and inertial data were collected, processed, and edited using hardware and software from Trimble and Navstar Mapping Corporation. Additional editing was done with ESRI's ArcView software. Data was also collected with more traditional survey methods using the Trimble 5600 Total Station and incorporated using a program written by the Navstar Mapping Corporation. The final data set is used to generate polylines with measures.
        Process Date: 12/2007
        Process Contact:
          Contact Information:
            Contact Person Primary:
              Contact Person: Thomas A. Blake
              Contact Organization: Transportation Data Office, Washington State Department of Transportation
            Contact Position: GIS/GPS Analyst
            Contact Address:
              Address Type: mailing address
              Address: PO Box 47380
              City: Olympia
              State or Province: WA
              Postal Code: 98504-7380
              Country: USA
            Contact Address:
              Address Type: physical address
              Address: 7345 Linderson Way SW
              City: Tumwater
              State or Province: WA
              Postal Code: 98501-6504
              Country: USA
            Contact Voice Telephone: 360-570-2363
            Contact Electronic Mail Address: blaket@wsdot.wa.gov
      Process Step:
        Process Description: The base shapefile was created in ArcCatalog. Polylines with measures were constructed from the GPS point files and inserted into the shapefile using a custom ArcObjects script executed in ArcMap.
        Process Date: 12/2007
        Process Contact:
          Contact Information:
            Contact Person Primary:
              Contact Person: Bob Grabhorn
              Contact Organization: Cartography/GIS, Washington State Department of Transportation
            Contact Position: GIS Analyst
            Contact Address:
              Address Type: mailing address
              Address: PO Box 47384
              City: Olympia
              State or Province: WA
              Postal Code: 98504-7384
              Country: USA
            Contact Voice Telephone: 360-709-5525
            Contact Electronic Mail Address: grabhob@wsdot.wa.gov
      Process Step:
        Process Description:
          Attributes were then added and the dataset was projected to state plane coordinates. Additional datasets were extracted for the increasing (GPSLRSIncSPS) and decreasing (GPSLRSDecSPS) directions of travel and ramps (GPSLRSRampsSPS). The GPSLRSIncSPS dataset was then simplified with a three foot tolerance to produce the GPSLRS500kSPS dataset. Using the GPSLRSIncSPS dataset and tabular data from TRIPS, DOT regional polygons were constructed and then used to clip out regional GPSLRS datasets from the GPSLRSIncDecRampsSPS dataset.
        Process Date: 12/2007
        Process Contact:
          Contact Information:
            Contact Person Primary:
              Contact Person: Thomas A. Blake
              Contact Organization: Transportation Data Office, Washington State Department of Transportation
            Contact Position: GIS/GPS Analyst
            Contact Address:
              Address Type: mailing address
              Address: PO Box 47380
              City: Olympia
              State or Province: WA
              Postal Code: 98504-7380
              Country: USA
            Contact Address:
              Address Type: physical address
              Address: 7345 Linderson Way SW
              City: Tumwater
              State or Province: WA
              Postal Code: 98501-6504
              Country: USA
            Contact Voice Telephone: 360-570-2363
            Contact Electronic Mail Address: blaket@wsdot.wa.gov
      Process Step:
        Process Description: The datasets were then imported into a personal geodatabase and metadata was imported and updated.
        Process Date: 12/2007
        Process Contact:
          Contact Information:
            Contact Person Primary:
              Contact Person: Thomas A. Blake
              Contact Organization: Transportation Data Office, Washington State Department of Transportation
            Contact Position: GIS/GPS Analyst
            Contact Address:
              Address Type: mailing address
              Address: PO Box 47380
              City: Olympia
              State or Province: WA
              Postal Code: 98504-7380
              Country: USA
            Contact Address:
              Address Type: physical address
              Address: 7345 Linderson Way SW
              City: Tumwater
              State or Province: WA
              Postal Code: 98501-6504
              Country: USA
            Contact Voice Telephone: 360-570-2363
            Contact Electronic Mail Address: blaket@wsdot.wa.gov
    Cloud Cover: 0

Spatial Data Organization Information

 Section Index

    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: 1450

Spatial Reference Information

 Section Index

    Horizontal Coordinate System Definition:
      Planar:
        Map Projection:
          Map Projection Name: Lambert Conformal Conic
          Lambert Conformal Conic:
            Standard Parallel: 45.833333
            Standard Parallel: 47.333333
            Longitude of Central Meridian: -120.5
            Latitude of Projection Origin: 45.333333
            False Easting: 1640416.666667
            False Northing: 0
        Planar Coordinate Information:
          Planar Coordinate Encoding Method: Coordinate Pair
          Coordinate Representation:
            Abscissa Resolution: 0.001
            Ordinate Resolution: 0.001
          Planar Distance Units: survey feet
      Geodetic Model:
        Horizontal Datum Name: D_North_American_1983_HARN
        Ellipsoid Name: Geodetic Reference System 80
        Semi-major Axis: 6378137
        Denominator of Flattening Ratio: 298.257222
    Vertical Coordinate System Definition:
      Altitude System Definition:
        Altitude Resolution: 0.001000
        Altitude Encoding Method: Explicit elevation coordinate included with horizontal coordinates

Entity and Attribute Information

 Section Index

    Detailed Description:
      Entity Type:
        Entity Type Label: State Route GPS Routes
        Entity Type Definition: Washington State Department of Transportation (WSDOT) highways, including interstate, U.S., and State routes.
        Entity Type Definition Source: Transportation Information and Planning System (TRIPS)
      Attribute:
        Attribute Label: DIRECTION
        Attribute Definition: Direction of highway in relation to Accumulated Route Mileage values
        Attribute Definition Source: Transportation Data Office, Washington State Department of Transportation
        Attribute Domain Values:
          Enumerated Domain:
            Enumerated Domain Value: i
            Enumerated Domain Value Definition: "i" or "increasing" indicates that the section of highway is bound in the increasing direction of Accumulated Route Mileage values.
          Enumerated Domain:
            Enumerated Domain Value: d
            Enumerated Domain Value Definition: "d" or "decreasing" indicates that the section of highway is bound in the direction of decreasing Accumulated Route Mileage values.
      Attribute:
        Attribute Label: DISPLAY
        Attribute Definition: Labels for shields
      Attribute:
        Attribute Label: EXIT
        Attribute Definition: Exit number that an interchange route is associated with.
      Attribute:
        Attribute Label: IC_CODE
        Attribute Definition: Interchange identifier
      Attribute:
        Attribute Label: LRS_DATE
        Attribute Definition: The version date of the dataset.
      Attribute:
        Attribute Label: LRS_SRID
        Attribute Definition:
          A unique State Route identifier: *For mainline State Routes, the unique identifier is comprised of the State Route number and "i" or "d" to indicate the direction of travel. "i" refers to travel from south to north or west to east. "d" refers to travel from north to south or east to west. *For State Routes possessing a Related Roadway Type, the unique identifier is comprised of the State Route number, Direction of Travel, Related Roadway Type and Related Roadway Qualifier, as defined by the Transportation Data Office.
      Attribute:
        Attribute Label: ML_OR_IC
        Attribute Definition: Mainline or Interchange route
      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: REGION
        Attribute Definition: The Washington State Department of Transportation Region each interchange route is associated with.
        Attribute Domain Values:
          Enumerated Domain:
            Enumerated Domain Value: EA
            Enumerated Domain Value Definition: Eastern Region
          Enumerated Domain:
            Enumerated Domain Value: NC
            Enumerated Domain Value Definition: North Central Region
          Enumerated Domain:
            Enumerated Domain Value: NW
            Enumerated Domain Value Definition: Northwest Region
          Enumerated Domain:
            Enumerated Domain Value: OL
            Enumerated Domain Value Definition: Olympic Region
          Enumerated Domain:
            Enumerated Domain Value: SC
            Enumerated Domain Value Definition: South Central Region
          Enumerated Domain:
            Enumerated Domain Value: SW
            Enumerated Domain Value Definition: Southwest Region
      Attribute:
        Attribute Label: RRQ
        Attribute Definition: Related Roadway Qualifier
      Attribute:
        Attribute Label: RRT
        Attribute Definition: Related Roadway Type
      Attribute:
        Attribute Label: RT_TYPEA
        Attribute Definition: Route Type (text)
        Attribute Domain Values:
          Enumerated Domain:
            Enumerated Domain Value: IS
            Enumerated Domain Value Definition: Interstate Route
          Enumerated Domain:
            Enumerated Domain Value: US
            Enumerated Domain Value Definition: US Route
          Enumerated Domain:
            Enumerated Domain Value: SR
            Enumerated Domain Value Definition: State Route
      Attribute:
        Attribute Label: RT_TYPEB
        Attribute Definition: Route Type (integer)
        Attribute Domain Values:
          Enumerated Domain:
            Enumerated Domain Value: 0
            Enumerated Domain Value Definition: State Route
          Enumerated Domain:
            Enumerated Domain Value: 1
            Enumerated Domain Value Definition: Interstate Route
          Enumerated Domain:
            Enumerated Domain Value: 2
            Enumerated Domain Value Definition: US Route
      Attribute:
        Attribute Label: SHAPE
        Attribute Definition: Feature geometry.
        Attribute Definition Source: ESRI
        Attribute Domain Values:
          Unrepresentable Domain: Coordinates defining the features.
      Attribute:
        Attribute Label: Shape
        Attribute Definition: Feature geometry.
        Attribute Definition Source: ESRI
        Attribute Domain Values:
          Unrepresentable Domain: Coordinates defining the features.
      Attribute:
        Attribute Label: SHAPE_Length
        Attribute Definition: Length of feature in internal units.
        Attribute Definition Source: ESRI
        Attribute Domain Values:
          Unrepresentable Domain: Positive real numbers that are automatically generated.
      Attribute:
        Attribute Label: SR
        Attribute Definition: Route ID number.
        Attribute Definition Source: Transportation Data Office, Washington State Department of Transportation
        Attribute Domain Values:
          Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
      Attribute:
        Attribute Label: SRID
        Attribute Definition:
          A State Route identifier assigned by WSDOT's Transportation Data Office associated with the TRansportation Information and Planning Support system (TRIPS). Every WSDOT highway in Washington state is assigned a State Route number, including interstates and U.S. Routes.
        Attribute Definition Source: Transportation Data Office, Washington State Department of Transportation
        Attribute Domain Values:
          Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
    Overview Description:
      Entity and Attribute Overview: Polylines represent the leftmost general use lane of travel along Washington State Routes. The data set contains State Route numbers, State Route IDs, and direction of travel for state routes.

Distribution Information

 Section Index

    Distributor:
      Contact Information:
        Contact Organization Primary:
          Contact Organization: Washington State Department of Transportation
          Contact Person: Michelle Blake
        Contact Position: GIS Data Administrator
        Contact Address:
          Address Type: mailing address
          Address: PO Box 47430
          City: Olympia
          State or Province: WA
          Postal Code: 98504-7430
          Country: USA
        Contact Address:
          Address Type: physical address
          Address: 7345 Linderson Way SW
          City: Tumwater
          State or Province: WA
          Postal Code: 98501-6504
          Country: USA
        Contact Voice Telephone: 360-705-7797
        Contact Facsimile Telephone: 360-705-6817
        Contact Electronic Mail Address: blakem@wsdot.wa.gov
        Contact Instructions: Call, email or write with requests for geo-spatial data sets.
    Resource Description: At WSDOT: ArcSDE Server: Database: TransFeatures; Owner: Base; Instance: 5151
    Distribution Liability:
      The Washington State Department of Transportation shall not be liable for any activity involving these data with regard to lost profits or savings or any other consequential damages; or the fitness for use of the data for a particular purpose; or the installation of the data, its use, or the results obtained.
    Standard Order Process:
      Digital Form:
        Digital Transfer Information:
          Format Specification: Various formats are used: ESRI coverages and shapefiles, and data tables for placement as ArcView "events."
          Format Information Content:
            The standard distribution compact disc contains all geospatial data sets created by the Washington State Dept. of Transportation. Refer to the included Geodata.txt text file for a brief description of the directory structure. Data formats vary--most data are stored as ESRI shape files, but some data models require coverages. There are also dbf-format tables of data located by geographic coordinates or State Route Accumulated Route Mileage.
          Transfer Size: 4.441
        Digital Transfer Option:
          Offline Option:
            Offline Media: CD-ROM
      Fees: none
      Ordering Instructions: Call, email or write the Distributor with requests for geo-spatial data sets.
      Turnaround: Generally, the standard compact disc containing all distributed data can be sent within one week of receiving a data request.
    Standard Order Process:
      Digital Form:
        Digital Transfer Information:
          Format Name: self-extracting zip file
          Format Version Number: 6.3 SR-1 (926) 32-bit
          Format Specification: WinZip
          Format Information Content:
            Depends on the data set. Arc/Info coverage or shape file; metadata report in html and text files; and, in some cases, a data dictionary text file. Some data sets in the standard distribution are tabular data for placement as ArcView "events."
          File Decompression Technique: Run the "exe" file under Windows NT.
          Transfer Size: 4.441
        Digital Transfer Option:
          Online Option:
            Access Instructions: Use anonymous FTP login or web browser download on the URL specified under Network Address.
            Online Computer and Operating System: Unix
      Fees: none
      Ordering Instructions: Download individual data sets from ftp://ftp.wsdot.wa.gov/gis/GeoDataDistribution
    Standard Order Process:
      Non-digital Form: The Cartography/GIS Section can plot maps of most geospatial data sets.
    Available Time Period:
      Time Period Information:
        Single Date/Time:
          Calendar Date: Unknown

Metadata Reference Information

 Section Index

    Metadata Date: 12/26/2007
    Metadata Review Date:
    Metadata Future Review Date:
    Metadata Contact:
      Contact Information:
        Contact Organization Primary:
          Contact Organization: Washington State Department of Transportation
          Contact Person: Michelle Blake
        Contact Position: GIS Data Administrator
        Contact Address:
          Address Type: mailing address
          Address: PO Box 47430
          City: Olympia
          State or Province: WA
          Postal Code: 98504-7430
          Country: USA
        Contact Address:
          Address Type: physical address
          Address: 7345 Linderson Way SW
          City: Tumwater
          State or Province: WA
          Postal Code: 98501-6504
          Country: USA
        Contact Voice Telephone: 360-705-7797
        Contact Facsimile Telephone: 360-705-6817
        Contact Electronic Mail Address: blakem@wsdot.wa.gov
        Contact Instructions: Call, email or write with requests for geo-spatial data sets.
    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: none
    Metadata Use Constraints: none
    Metadata Extensions:
      Online Linkage: http://www.esri.com/metadata/esriprof80.html
      Profile Name: ESRI Metadata Profile
    Metadata Extensions:
      Online Linkage: http://www.esri.com/metadata/esriprof80.html
      Profile Name: ESRI Metadata Profile

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