Truck Performance Measures
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:
Publication Date: 20130321
Title: Truck Performance Measures
Geospatial Data Presentation Form: vector digital data
Description:
Abstract:
Lines represent segments of Washington's State Routes that have been analyzed to evaluate truck freight performance, locate and identify truck slow speed bottlenecks. The Washington State Department of Transportation developed new methodology to objectively identify and assess truck slow speed bottlenecks based on truck GPS spot speed data. The refined criteria adopted for identifying slow truck speed bottlenecks are as follows:
1) The truck tonnage carried by the corridor meets T-1 or T-2 freight corridor threshold (with an annual gross truck tonnage greater than 4 million);
2) More than 50% of sample trucks traveling below a poor speed performance threshold, which WSDOT has defined as 60 percent of posted speed (36 miles per hour on urban freeways).
Purpose:
The Washington State Department of Transportation (WSDOT), Transportation Northwest at the University of Washington, and the Washington Trucking Associations have partnered on a research effort to collect and analyze GPS truck data from commercial, in-vehicle, truck fleet management systems. This project is collecting commercially available GPS data and evaluating the feasibility of using them to support a state truck freight network performance-monitoring program. An important part of this effort consists of using these data to locate and rank truck bottlenecks on Washington State highway network.
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 2012
Time of Day: Unknown
Currentness Reference: ground condition
Status:
Progress: Complete
Maintenance and Update Frequency: Annually
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -124.608305
East Bounding Coordinate: -116.862183
North Bounding Coordinate: 49.030203
South Bounding Coordinate: 45.506909
Keywords:
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: transportation
Theme Keyword: Freight
Theme Keyword: Mobility
Place:
Place Keyword Thesaurus: None
Place Keyword: Washington
Place Keyword: WA
Access Constraints: None
Use Constraints: This data is intended for internal WSDOT use.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: WSDOT Freight Systems Division
Contact Person: Wenjuan Zhao
Contact Position: Freight Policy and Program Manager
Contact Address:
Address Type: mailing and physical address
Address: PO Box 47407
City: Olympia
State or Province: WA
Postal Code: 98504-7407
Country: USA
Contact Voice Telephone: 360-705-6990
Contact Electronic Mail Address: ZHAOW@wsdot.wa.gov
Contact Instructions: Call, email or write with requests
Data Set Credit: Edward McCormack, Eric Scharnhorst, and Wenjuan Zhao - University of Washington, Washington State Transportation Center (TRAC), Washington State Department of Transportation
Native Data Set Environment: Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.0.2414
Data Quality Information
Section Index
Lineage:
Process Step:
Process Description:
The data is provided in csv file format via SFTP by Washington State Transportation Center. The data is then placed using State Route and accumulated route mileage values along the WSDOT State Route 24K Linear Referencing System data to create a linear feature class.
Process Date: 20130321
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: Complete chain
Point and Vector Object Count: 5473
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: 0.00025
Ordinate Resolution: 0.00025
Planar Distance Units: Foot_US
Geodetic Model:
Horizontal Datum Name: D North American 1983 HARN
Ellipsoid Name: GRS 1980
Semi-major Axis: 6378137
Denominator of Flattening Ratio: 298.257222101
Vertical Coordinate System Definition:
Altitude System Definition:
Altitude Resolution: 1.000000
Altitude Encoding Method: Explicit elevation coordinate included with horizontal coordinates
Entity and Attribute Information
Section Index
Detailed Description:
Entity Type:
Entity Type Label: TransFeatures.BASE.TruckPerformanceMeasure
Attribute:
Attribute Label: BeginARM
Attribute Definition: The beginning Accumulated Route Milepost Value.
Attribute:
Attribute Label: DirnToInventory
Attribute Definition: Direction to Inventory
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: I
Enumerated Domain Value Definition: Increasing direction to inventory; increasing milepost direction along a given State Route.
Enumerated Domain:
Enumerated Domain Value: D
Enumerated Domain Value Definition: Decreasing direction to inventory; decreasing milepost direction along a given State Route.
Attribute:
Attribute Label: EndARM
Attribute Definition: The ending Accumulated Route Milepost Value.
Attribute:
Attribute Label: FGTSCategory
Attribute Definition: Freight and Goods Transportation System (FGTS) Category. FGTS is a classification of state highways, county roads, and city streets according to the average annual gross truck tonnage they carry.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 1
Enumerated Domain Value Definition: T-1 freight corridors carrying more than 10 million tons per year
Enumerated Domain:
Enumerated Domain Value: 2
Enumerated Domain Value Definition: T-2 freight corridors carrying 4 million to 10 million tons per year
Enumerated Domain:
Enumerated Domain Value: 3
Enumerated Domain Value Definition: T-3 freight corridors carrying 300,000 to 4 million tons per year
Enumerated Domain:
Enumerated Domain Value: 4
Enumerated Domain Value Definition: T-4 freight corridors carrying 100,000 to 300,000 tons per year
Enumerated Domain:
Enumerated Domain Value: 5
Enumerated Domain Value Definition: T-5 freight corridors carrying at least 20,000 tons in 60 days
Attribute:
Attribute Label: MeanSpeed
Attribute Definition: Average truck speed calculated from truck GPS data.
Attribute:
Attribute Label: MeanSpeedtoPostedSpeed
Attribute Definition: Average speed divided by speed limit for roadway.
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: PeriodsUnreliable
Attribute Definition: Count of total unreliable time periods in the day (max 3).
Attribute:
Attribute Label: PostedSpeed
Attribute Definition: Posted speed limit (does not adjust for variable zones).
Attribute:
Attribute Label: PugetSoundInd
Attribute Definition: Puget Sound Indicator.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Y
Enumerated Domain Value Definition: The segment is considered to be part of the Puget Sound area.
Enumerated Domain:
Enumerated Domain Value: N
Enumerated Domain Value Definition: The segment is not considered to be part of the Puget Sound area.
Attribute:
Attribute Label: Rank
Attribute Definition: Bottleneck rank relative to other segments on this roadway
Attribute Definition Source: Washington State Transportation Center (TRAC)
Attribute:
Attribute Label: RecordBeginDate
Attribute Definition: Date that started the collection of truck GPS data and added the data record to the UW's database.
Attribute:
Attribute Label: RecordEndDate
Attribute Definition: Date that the record was retired from the UW's database.
Attribute:
Attribute Label: Reliability
Attribute Definition: Date that the truck GPS data collection ended and the record was retired from the UW's database.
Attribute:
Attribute Label: ReliabilityNonPkDay
Attribute Definition: Truck travel reliability during non-peak daylight hours from 9:00 AM to 3:00 PM - reliable or unreliable.
Attribute:
Attribute Label: ReliabilityNonPkNight
Attribute Definition: Reliability rating for non-peak night time hours, from 7:00PM to 6:00 AM.
Attribute:
Attribute Label: ReliabilityPkAM
Attribute Definition: Truck travel reliability during peak morning hours from 6:00 to 9:00 AM - reliable or unreliable.
Attribute:
Attribute Label: ReliabilityPkPM
Attribute Definition: Truck travel reliability during peak evening hours from 3:00 to 7:00 PM - reliable or unreliable.
Attribute:
Attribute Label: SampleSize
Attribute Definition: Number of usable readings for this segment.
Attribute:
Attribute Label: SectionID
Attribute Definition: Roadway segment identifier
Attribute Definition Source: Washington State Transportation Center (TRAC)
Attribute:
Attribute Label: SectionLength
Attribute Definition: Length of the section in miles.
Attribute:
Attribute Label: SevereSpeedThreshold
Attribute Definition: Percentage of sample trucks traveling at a speed below 60% of the posted speed during daylight hours, from 6:00 AM to 7:00 PM.
Attribute:
Attribute Label: SevereSpeedThresholdNonPkDay
Attribute Definition: Percentage of sample trucks traveling at a speed below 60% of the posted speed during non-peak daylight hours, from 9:00 AM to 3:00 PM.
Attribute:
Attribute Label: SevereSpeedThresholdPkAM
Attribute Definition: Percentage of sample trucks traveling at a speed below 60% of the posted speed during peak morning hours, from 6:00 to 9:00 AM.
Attribute:
Attribute Label: SevereSpeedThresholdPkPM
Attribute Definition: Percentage of sample trucks traveling at a speed below 60% of the posted speed during peak evening hours, from 3:00 to 7:00 PM.
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: StateRouteID
Attribute Definition: Interstate or Highway name
Attribute Definition Source: Washington State Transportation Center (TRAC)
Attribute:
Attribute Label: UrbanInd
Attribute Definition: Urban Indicator.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Y
Enumerated Domain Value Definition: The segment is considered to be urban.
Enumerated Domain:
Enumerated Domain Value: N
Enumerated Domain Value Definition: The segment is considered rural.
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 Database 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 Electronic Mail Address: mitchejo@wsdot.wa.gov
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:
Fees: none
Ordering Instructions: Download individual data sets from http://www.wsdot.wa.gov/mapsdata/geodatacatalog/default.htm
Metadata Reference Information
Section Index
Metadata Date: 3/2/2013
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 Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
Metadata Extensions:
Online Linkage: http://www.esri.com/metadata/esriprof80.html
Profile Name: ESRI Metadata Profile
SMMS Metadata report generated Thursday, 21/March/2013
