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: 20101015
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 90% 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: 10/15/2010
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: Thomas A. Blake
Contact Organization: GIS and Roadway Data Office, Washington State Department of Transportation
Contact Position: GIS Data Products Supervisor
Contact Address:
Address Type: physical address
Address: 7345 Linderson Way SW
City: Tumwater
State or Province: WA
Postal Code: 98501
Country: USA
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: 360-570-2363
Contact Electronic Mail Address: blaket@wsdot.wa.gov
Data Set Credit: GIS and Roadway Data Office, Washington State Department of Transportation
Native Data Set Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
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 90% 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: 20101015
Process Contact:
Contact Information:
Contact Person Primary:
Contact Person: Thomas A. Blake
Contact Organization: GIS and Roadway Data Office, Washington State Department of Transportation
Contact Position: GIS Data Products Supervisor
Contact Address:
Address Type: physical address
Address: 7345 Linderson Way SW
City: Tumwater
State or Province: WA
Postal Code: 98501
Country: USA
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: 360-570-2363
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: 08/2008
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: 08/2008
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: 08/2008
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: Metadata imported.
Process Date: 20101112
Process Time: 11:50:38
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: 3049
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: GPSLRSIncDecRampsSPS
Entity Type Definition: Washington State Department of Transportation (WSDOT) highways, including interstate, U.S., and State routes.
Entity Type Definition Source: State Highway Log
Attribute:
Attribute Label: DIRECTION
Attribute Definition: Direction of highway in relation to Accumulated Route Mileage values
Attribute Definition Source: GIS and Roadway 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 Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute Label: IC_CODE
Attribute Definition: Interchange identifier associated with the Interchange Drawings PDF filename.
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 Domain Values:
Enumerated Domain:
Enumerated Domain Value: ML
Enumerated Domain Value Definition: Mainline route
Enumerated Domain:
Enumerated Domain Value: IC
Enumerated Domain Value Definition: 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 (two character abbreviation for a type of roadway)
Attribute Definition Source: State Highway Log
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Null
Enumerated Domain Value Definition: Mainline
Enumerated Domain:
Enumerated Domain Value: AR
Enumerated Domain Value Definition: Alternate Route
Enumerated Domain:
Enumerated Domain Value: CO
Enumerated Domain Value Definition: Couplet
Enumerated Domain:
Enumerated Domain Value: CD
Enumerated Domain Value Definition: Collector Distributor Decreasing
Enumerated Domain:
Enumerated Domain Value: CI
Enumerated Domain Value Definition: Collector Distributor Increasing
Enumerated Domain:
Enumerated Domain Value: FD
Enumerated Domain Value Definition: Frontage Road Decreasing
Enumerated Domain:
Enumerated Domain Value: FI
Enumerated Domain Value Definition: Frontage Road Increasing
Enumerated Domain:
Enumerated Domain Value: HD
Enumerated Domain Value Definition: Grade-Seperated HOV Decreasing
Enumerated Domain:
Enumerated Domain Value: HI
Enumerated Domain Value Definition: Grade-Seperated HOV Increasing
Enumerated Domain:
Enumerated Domain Value: LX
Enumerated Domain Value Definition: Crossroad within Interchange
Enumerated Domain:
Enumerated Domain Value: P1-P9
Enumerated Domain Value Definition: Off Ramp, Increasing
Enumerated Domain:
Enumerated Domain Value: Q1-Q9
Enumerated Domain Value Definition: On Ramp Increasing
Enumerated Domain:
Enumerated Domain Value: R1-R9
Enumerated Domain Value Definition: Off Ramp Decreasing
Enumerated Domain:
Enumerated Domain Value: S1-S9
Enumerated Domain Value Definition: On Ramp Decreasing
Enumerated Domain:
Enumerated Domain Value: RL
Enumerated Domain Value Definition: Reversible Lane
Enumerated Domain:
Enumerated Domain Value: SP
Enumerated Domain Value Definition: Spur
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: RA
Enumerated Domain Value Definition: Ramp
Enumerated Domain:
Enumerated Domain Value: SR
Enumerated Domain Value Definition: State Route
Enumerated Domain:
Enumerated Domain Value: LC
Enumerated Domain Value Definition: Local Road either frontage road of Local access approach.
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
Enumerated Domain:
Enumerated Domain Value: 3
Enumerated Domain Value Definition: Ramp
Enumerated Domain:
Enumerated Domain Value: 4
Enumerated Domain Value Definition: Local Access approach (LX) Frontage Roads (FD, FI)
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.len
Attribute:
Attribute Label: SR
Attribute Definition: Route ID number.
Attribute Definition Source: GIS and Roadway 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: GIS and Roadway 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, Office of Information Technology
Contact Person: Jordyn Mitchell
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 Voice Telephone: 360-705-7645
Contact Facsimile Telephone: 360-705-6817
Contact Electronic Mail Address: mitchejo@wsdot.wa.gov
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 this 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.
Digital Transfer Option:
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.
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 http://www.wsdot.wa.gov/mapsdata/geodatacatalog/default.htm
Standard Order Process:
Non-digital Form: The Cartography/GIS Section can plot maps of most geospatial data sets.
Fees: depend on plotting costs.
Ordering Instructions: Contact the Point of Contact listed under the Identification Section to determine the availability of this data set in a non-digital representation.
Metadata Reference Information
Section Index
Metadata Date: 10/25/2010
Metadata Review Date:
Metadata Future Review Date:
Metadata Contact:
Contact Information:
Contact Person Primary:
Contact Person: Thomas A. Blake
Contact Organization: GIS and Roadway Data Office, Washington State Department of Transportation
Contact Position: GIS Data Products Supervisor
Contact Address:
Address Type: physical address
Address: 7345 Linderson Way SW
City: Tumwater
State or Province: WA
Postal Code: 98501
Country: USA
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: 360-570-2363
Contact Electronic Mail Address: blaket@wsdot.wa.gov
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
