Metadata: WINTER_MAINTENANCE_SUBAREAS

WINTER_MAINTENANCE_SUBAREAS

This page last updated: 2022-04-26
Metadata created using Minnesota Geographic Metadata Guidelines


Go to Section:
  1. Overview
  2. Data Quality
  3. Data Organization
  4. Coordinate System
  5. Attributes
  6. Distribution - Get Data
  7. Metadata Reference

Section 1: Overview

Originator:Minnesota Department of Transportation

Title: WINTER_MAINTENANCE_SUBAREAS

Abstract: The Minnesota Department of Transportation (MnDOT) divides the state into 8 administrative zones that are called Districts (Districts 1, 2, 3, 4, Metro (formerly 5 & 9), 6, 7, 8). Since some of the districts (Districts 3, 6, and 7) are split into smaller administrative zones, there are 11 administrative zones within these 8 Districts that are referred to as Maintenance Subdistricts. Subdistricts are then split further into 47 Maintenance Subareas. The boundaries of these Subareas/Subdistricts are used to determine which Subarea is responsible for maintenance activities on trunk highways (during the summer or winter season), and for reporting purposes.

Summer Maintenance Subareas (SUMMER_MAINTENANCE_SUBAREAS) is a polygon feature class that represents Subareas during the Summer Maintenance season within the 8 MnDOT Districts. A Subarea represents the area that is maintained by a specific truck station during the summer or winter seasons.

Winter Maintenance Subareas (WINTER_MAINTENANCE_SUBAREAS) is a polygon feature class that represents Subareas during the Winter Maintenance season within the main 8 MnDOT Districts. A Subarea represents the area that is maintained by a specific truck station during the summer or winter seasons.

Purpose: This dataset was produced to address the need for accurate and updated Maintenance Subarea/Subdistrict boundaries, based on a collaborative inter-district discussion on the actual trunk highways and junctions served within each district. This dataset represents the third major review and updates done in 2018, as the origination of the district boundaries lacked the large-scale detail necessary for today's reporting and decision making. The detail and accuracy of this updated dataset is anticipated to support and facilitate mobile data collection.

Time Period of Content Date: 2022-04-26

Currentness Reference: This data is current as of 8/26/19

Progress: Complete

Maintenance and Update Frequency: As needed

Spatial Extent of Data: State of Minnesota

Bounding Coordinates: -97.508970
-89.028990
49.652543
43.192405

Place Keywords: Minnesota

Theme Keywords: boundaries

Theme Keyword Thesaurus: ISO 19115 Topic Category

Access Constraints: None.

Use Constraints: None. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the publisher would be appreciated.

Contact Person Information: Peter Morey, Roadway Data and Support Section Director
Minnesota Department of Transportation
395 John Ireland Blvd.
Saint Paul, MN  55155
Phone: 651-366-3872
Fax: 651-366-3886
Email: linearreferencingsystem.admin.dot@state.mn.us

Browse Graphic: None available

Associated Data Sets: WINTER_MAINTENANCE_SUBAREAS

Section 2: Data Quality

Attribute Accuracy:

Logical Consistency: A Topology check is performed and validated within ArcGIS Desktop to detect overlaps and gaps within the polygons of the feature class(es). If any topology errors are detected, they are then immediately fixed.

Completeness: Data is complete for all 8 MnDOT Districts.

Horizontal Positional Accuracy:


Lineage: The Maintenance Subareas polygon layer originated from a polygon layer called "Winter Subareas" created by Dan Flatgard. Formerly, the terms "Subarea" and "region" were used by districts to describe varying units of maintenance management. During this data update, the term "Subarea" was accepted as the uniform and consistent unit to define maintenance activities. Originally the Maintenance Subareas were defined by the boundaries for winter maintenance activities. As of 2018, there is two separate polygons representing the summer and winter seasons for Maintenance Subareas specifically. The jurisdiction for summer and winter-based maintenance activities can deviate substantially for each Maintenance Subarea.

The existing Subarea boundary data was investigated by MnDOT's Office of Transportation Systems Management (OTSM) and presented to representatives of each district for discussion. The data was then either accepted or edited. Agreement was only required if the Subarea boundary was external and adjacent to another district.

External boundaries of Maintenance Subareas coincided with Construction Districts boundaries (with exceptions), and so were held to county lines as much as possible. Where it was necessary to deviate from the Construction District boundary, the trunk highways were then buffered or offset by following the closest Civil Township or Public Land Survey System (PLSS) boundary line, as best represented cartographically. Any boundary that followed a road along a county line was offset by 100 feet to include the road in the county with the higher population.

Future changes to any Maintenance Subarea/Subdistrict(s) will go through MnDOT's Office of Transportation System Management and the Route Numbering and Control Section (RNCS) Committee's for verification and the approval of proposed boundary changes.

Section 3: Spatial Data Organization (not used in this metadata)


Section 4: Coordinate System

Horizontal Coordinate Scheme: Universal Transverse Mercator

UTM Zone Number: 15

Horizontal Datum: NAD83

Horizontal Units: meters

Vertical Datum:

Vertical Units:

Depth Datum:

Depth Units:

Section 5: Attributes

Overview:

Detailed Citation:

Table Detail:
SUMMER_MAINTENANCE_SUBAREAS (File Geodatabase (.fgdb))
Field NameValid ValuesDefinitionDefinition Source
FID
-
The unique field identifier for the respective record (system generated)ESRI
Shape *
-
The type of shape (e.g. 'Polygon') (system generated)ESRI
MAINTENANCE_SUBAREA
-
The name of the Maintenance SubareaESRI
MAINTENANCE_DISTRICT_ID
-
An alphanumeric single character that is the identifier for the respective District (e.g. '7', 'M', etc.)ESRI
MAINTENANCE_SUB_DISTRICT_ID
-
Alphanumeric characters that represents the respective Subdistrict (e.g. '7B', 'M', etc.)ESRI
MAINTENANCE_SUB_DISTRICT_NAME
-
The name of the Maintenance SubdistrictESRI
MAINTENANCE_DISTRICT_NAME
-
The name of the Maintenance DistrictESRI
SHAPE_Leng
-
The length of the perimeter of the polygon in meters (system generated)ESRI
SHAPE_Area
-
The area of the polygon in square meters (system generated)ESRI
SUMMER_MAINTENANCE_SUBAREAS (Shapefile (.shp) or GeoPackage (.gpkg))
Field NameValid ValuesDefinitionDefinition Source
FID
-
The unique field identifier for the respective record (system generated)ESRI
Shape *
-
The type of shape (e.g. 'Polygon') (system generated)ESRI
MAINTENANC
-
The name of the Maintenance SubareaESRI
MAINTENA_1
-
Alphanumeric single character that represents the respective District (e.g. '7', 'M', etc.)ESRI
MAINTENA_2
-
Alphanumeric characters that represents the respective Subdistrict (e.g. '7B', 'M', etc.)ESRI
MAINTENA_3
-
The name of the Maintenance SubdistrictESRI
MAINTENA_4
-
The name of the Maintenance DistrictESRI
SHAPE_Leng
-
The length of the perimeter of the polygon (in meters)ESRI
SHAPE_Area
-
The area of the polygon (in square meters)ESRI
WINTER_MAINTENANCE_SUBAREAS (Shapefile (.shp) or GeoPackage (.gpkg))
Field NameValid ValuesDefinitionDefinition Source
FID
-
The unique field identifier for the respective record (system generated)ESRI
Shape *
-
The type of shape (e.g. 'Polygon') (system generated)ESRI
MAINTENANC
-
The name of the Maintenance SubareaESRI
MAINTENA_1
-
Alphanumeric single character that represents the respective District (e.g. '7', 'M', etc.)ESRI
MAINTENA_2
-
Alphanumeric characters that represents the respective Subdistrict (e.g. '7B', 'M', etc.)ESRI
MAINTENA_3
-
The name of the Maintenance SubdistrictESRI
MAINTENA_4
-
The name of the Maintenance DistrictESRI
SHAPE_Leng
-
The length of the perimeter of the polygon in meters (system generated)ESRI
SHAPE_Area
-
The area of the polygon in square meters (system generated)ESRI
WINTER_MAINTENANCE_SUBAREAS (File Geodatabase (.fgdb))
Field NameValid ValuesDefinitionDefinition Source
FID
-
The unique field identifier for the respective record (system generated)ESRI
Shape *
-
The type of shape (e.g. 'Polygon') (system generated)ESRI
MAINTENANCE_SUBAREA
-
The name of the Maintenance SubareaESRI
MAINTENANCE_DISTRICT_ID
-
An alphanumeric single character that is the identifier for the respective District (e.g. '7', 'M', etc.)ESRI
MAINTENANCE_SUB_DISTRICT_ID
-
Alphanumeric characters that represents the respective Subdistrict (e.g. '7B', 'M', etc.)ESRI
MAINTENANCE_SUB_DISTRICT_NAME
-
The name of the Maintenance SubdistrictESRI
MAINTENANCE_DISTRICT_NAME
-
The name of the Maintenance DistrictESRI
SHAPE_Leng
-
The length of the perimeter of the polygon in meters (system generated)ESRI
SHAPE_Area
-
The area of the polygon in square meters (system generated)ESRI

Section 6: Distribution

Publisher: Minnesota Department of Transportation

Publication Date: 2022-04-26

Contact Person Information: Peter Morey, Roadway Data and Support Section Director
Minnesota Department of Transportation
395 John Ireland Blvd.
Saint Paul, MN  55155
Phone: 651-366-3872
Fax: 651-366-3886
Email: linearreferencingsystem.admin.dot@state.mn.us

Distributor's Data Set Identifier: MnDOT Maintenance Subareas

Distribution Liability: USE OF THIS DOCUMENT IS SUBJECT TO MNDOT'S DISCLAIMERS, LEGAL NOTICES AND POLICIES FOUND at http://www.dot.state.mn.us/information/disclaimer.html

Ordering Instructions: The data may be requested from the Contact person listed in the metadata.

Online Linkage: I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.

Section 7: Metadata Reference

Metadata Date: 2022-04-26

Contact Person Information: Kyle House, Research Analyst Intermediate
Minnesota Department of Transportation
395 John Ireland Blvd.
Saint Paul, MN  55155
Phone: 651-366-3873
Fax: 651-366-3886
Email: linearreferencingsystem.admin.dot@state.mn.us

Metadata Standard Name: Minnesota Geographic Metadata Guidelines

Metadata Standard Version: 1.2



This page last updated: 2022-04-26
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