WSDOT Maintenance - Roadway Treatment Goals

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Publication_Date: 20150210
Title: WSDOT Maintenance - Roadway Treatment Goals
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
Due to the dynamic and diverse nature of winter weather and resultant road conditions, WSDOT maintenance personnel use a variety of methods and materials to help prevent snow and ice formation on state highways. Outcomes of snow and ice control treatments will vary, dependent upon severity of winter weather events, topography, traffic levels and speeds, and proximity to support facilities (i.e. liquid chemical storage tanks and salt stockpiles). While outcomes can be measured in a variety of ways, the motoring public most often measures maintenance efforts in terms of road conditions during and immediately after winter weather events. Maintenance personnel also rate roadway conditions during the winter season. This information is used to project expected road conditions associated with snow and ice treatment levels for different events. The unique nature of individual winter weather events limits the relevance of projected expectations on a given storm, but when ratings from an entire winter season are averaged, they become a good indicator of the Level of Service (LOS) provided by maintenance personnel over the entire season. Winter climates differ greatly between Eastern and Western Washington, so road treatment levels may vary on either side of the Cascades to match the ability to respond to those conditions. Limited funding also requires prioritization of roads for snow and ice control, so that different levels of service will be employed for individual roads and sections of roads.
Purpose:
Roadway Treatment Goals establish recommended roadway treatment levels regardless of WSDOT Region or Maintenance Area boundary.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20150210
Currentness_Reference: Layer created for us 500K extent
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.675082
East_Bounding_Coordinate: -116.861350
North_Bounding_Coordinate: 49.042517
South_Bounding_Coordinate: 45.504819
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: transportation
Theme_Keyword: environment
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: WSDOT
Theme_Keyword: Maintenance
Theme_Keyword: Snow and Ice Plan
Access_Constraints: None
Use_Constraints:
Data provided here is used by WSDOT's transportation partners, government entities, schools, private businesses, and the general public. The WSDOT GIS Community actively promotes inter agency data exchange and resource sharing.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.To download the most current version of this data, please visit the Washington State Department of Transportation's GeoData Distribution Catalog website:
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Washington State Department of Transportation
Contact_Person: Oai Tang
Contact_Address:
Address_Type: physical
Address: 310 Maple Park Ave. SW
City: Olympia
State_or_Province: WA
Postal_Code: 98504
Country: US
Contact_Voice_Telephone: 360-705-7854
Contact_Electronic_Mail_Address: tangoa@wsdot.wa.gov
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Washington State Department of Transportation
Contact_Person: Oai Tang
Contact_Position: Transportation Planning Specialist
Contact_Address:
Address_Type: mailing and physical
Address: 310 Maple Park Ave. SW
City: Olympia
State_or_Province: WA
Postal_Code: 98504
Country: US
Contact_Voice_Telephone: 360-705-7854
Contact_Electronic_Mail_Address: tangoa@wsdot.wa.gov
Hours_of_Service: 6:00am - 4:00pm
Contact_Instructions: Work schedule Monday through Friday
Data_Set_Credit: Washington State Department of Transportation
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.0.3397

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: 451

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet
Lambert_Conformal_Conic:
Standard_Parallel: 45.83333333333334
Standard_Parallel: 47.33333333333334
Longitude_of_Central_Meridian: -120.5
Latitude_of_Projection_Origin: 45.33333333333334
False_Easting: 1640416.666666667
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.00032808333333333333
Ordinate_Resolution: 0.00032808333333333333
Planar_Distance_Units: foot_us
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983 HARN
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Maintenance.DBO.TreatmentGoals
Entity_Type_Definition:
Treatment goals for each state route section within Washington state
Entity_Type_Definition_Source: WSDOT
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.
Beginning_Date_of_Attribute_Values: 20150210
Ending_Date_of_Attribute_Values: 20150210
Attribute_Measurement_Frequency: 009
Attribute:
Attribute_Label: RouteID
Attribute_Definition: State Route number
Attribute:
Attribute_Label: BegSRMP
Attribute_Definition:
Beginning State Route Milepost - Sequential number, in designated direction of travel, of 1/100th mile increments along a State Route.
Attribute_Definition_Source: Electronic State Highway Log Data Definitions
Attribute:
Attribute_Label: EndSRMP
Attribute_Definition:
Ending State Route Milepost - Sequential number, in designated direction of travel, of 1/100th mile increments along a State Route.
Attribute_Definition_Source: Electronic State Highway Log Data Definitions
Attribute:
Attribute_Label: BEGARM
Attribute_Definition:
Beginning Accumulated Route Mile - The route mile accumulated from the beginning of a State Route in the direction of the roadway.
Attribute_Definition_Source: Electronic State Highway Log Data Definitions
Attribute_Measurement_Frequency: 009
Attribute:
Attribute_Label: ENDARM
Attribute_Definition:
Ending Accumulated Route Mile - The route mile accumulated from the beginning of a State Route in the direction of the roadway.
Attribute_Definition_Source: Electronic State Highway Log Data Definitions
Attribute_Measurement_Frequency: 009
Attribute:
Attribute_Label: TreatementGoal
Attribute_Definition:
No Value - Treatment of the roadway is managed by a local agency.
Treatment Level 1: Pre-event: Pre-treat roadway with anti-icing chemicals if conditions are appropriate for such treatment. Monitor the treatment for effectiveness and for the need to reapply. During event: Apply deicing chemicals to roadway during a snow event to keep snow and ice from accumulating and bonding to the pavement and to expedite the process of mechanical removal. If compact snow or black ice forms on the roadway, apply pre-wet solid chemicals to break the snow/ice bond and to assist the process of mechanical removal. Post-event: Continue snow and ice removal operations including chemical and mechanical methods until bare pavement is achieved.
Treatment Level 2: Pre-event: Maintain the same as higher priority roadways after those roadways have been treated and as resources allow. During event: Apply deicing chemicals to roadway during a snow event to keep snow and ice from accumulating and bonding to the pavement and to expedite the process of mechanical removal. If compact snow or black ice forms on the roadway, apply pre-wet solid chemicals to break the snow/ice bond and to assist the process of mechanical removal. Post Event: Return pavement to bare and wet condition as soon as practical using plowing as the primary operation with moderate use of pre-wet materials to assist snow and ice removal.
Treatment Level 3: Pre-event: Maintain the same as higher priority roadways after those roadways have been treated and as resources allow. During event: Apply deicers on first passes when and where necessary to keep snow and ice from accumulating. Subsequent passes should rely primarily on plowing with the moderate use of pre-wet materials to assist mechanical snow and ice removal. Post event: Return pavement to bare and wet condition as soon as practical using plowing as the primary operation with moderate use of pre-wet materials to assist snow and ice removal.
Treatment Level 4: Pre-event: Maintain the same as higher priority roadways after those roadways have been treated and as resources allow. During event: Apply deicers on first passes when and where necessary to keep snow and ice from accumulating. Subsequent passes should rely primarily on plowing with the moderate use of pre-wet materials to assist mechanical snow and ice removal. Post event: Return pavement to bare and wet condition as soon as practical using plowing as the primary operation with moderate use of pre-wet materials to assist snow and ice removal.
Treatment Level 5: Pre-event: Maintain the same as higher priority roadways after those roadways have been treated and as resources allow. During event: Apply deicers on first passes when and where necessary to keep snow and ice from accumulating. Subsequent passes should rely primarily on plowing with the moderate use of pre-wet materials to assist mechanical snow and ice removal. Post event: Return to bare and wet as resources allow.
Attribute_Definition_Source: WSDOT Snow and Ice Manual
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute_Measurement_Frequency: 009
Attribute:
Attribute_Label: SHAPE.STLength()

Distribution_Information:
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: PO Box 47430
City: Olympia
State_or_Province: WA
Postal_Code: 98504-7430
Country: US
Contact_Voice_Telephone: 360-705-7645
Contact_Electronic_Mail_Address: mitchejo@wsdot.wa.gov
Distribution_Liability: See access and use constraints information.
Standard_Order_Process:
Fees: none
Ordering_Instructions:
Download individual data sets from <http://www.wsdot.wa.gov/mapsdata/geodatacatalog/default.htm>

Metadata_Reference_Information:
Metadata_Date: 20150320
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Washington State Department of Transportation
Contact_Person: Oai Tang
Contact_Address:
Address_Type: physical
Address: 310 Maple Park Ave. SW
City: Olympia
State_or_Province: WA
Postal_Code: 98504
Country: US
Contact_Voice_Telephone: 360-705-7854
Contact_Electronic_Mail_Address: tangoa@wsdot.wa.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

Generated by mp version 2.9.12 on Fri Mar 20 14:23:57 2015