Data Layers Announcements

 
  
  
Release Updates2/16/2015

The NCDOT GIS Unit is pleased to announce release of the GIS Data layers on the GIS unit webpage specified below for First Quarter 2015.  Due to the GIS Unit’s conversion to ESRI’s Roads and Highway ALRS model, future GIS Unit derived quarterly publication products will temporarily cease during the crucial preparation period.  We anticipate publishing quarterly products to resume no sooner than the end of the 2015 year for February- First Quarter 2016.  All incoming customer publication products should continue as normal and are currently scheduled for the following months: May, August, November, and February.   

1.      The FY 2013 - 2014 Municipal Boundaries layer is now available.
2.      The County Boundaries layer has been updated and is now available in shoreline and non-shoreline formats.
3.      The NCDOT Division Boundaries layer has been updated according to the county boundary changes and is now available.
4.      The NCDOT Rail Division data for track, crossing, and facility locations have been updated.
5.      The NCDOT Bridge locations layer has been updated to reflect Bridge Maintenance Unit’s data, current to January 5, 2015.
6.      The First Quarter 2015 Release of the NCMIN Tiers Layer and tabular data are now available.
7.      The First Quarter 2015 Release of the Road Characteristics layer is now available. Prior to downloading the layer, please review the improvements and known issues (see link on page listed below).
8.      The First Quarter 2015 Release of the Statewide Primary & Secondary Road Arcs and Statewide Primary & Secondary Road Routes is now available.
9.      Metadata (information about the layer) is included for all layers available on this page and is bundled within the layer download.
10.  The Linear Referencing System (LRS) Integration Guide is available to assist users with the LRS and referencing methods in the "Road Data" layers.
11.  The Road Characteristics Field Descriptions document is available which covers the meaning, source contact and extent of each field in Road Characteristics. This document is similar to the metadata but it is more user-friendly, printer friendly and can be accessed without ArcGIS software and without downloading the Road Characteristics geodatabase.
These data layers and more information about them can be accessed on the GIS Unit website: https://connect.ncdot.gov/resources/gis/Pages/GIS-Data-Layers.aspx..
 

Tabular Road Data

 
  
  
NCMIN Tier DesignationsFirst Quarter 2015 Release

A Microsoft Access database containing a single table of county, route, milepost, and NCMIN tier designations. This data set is derived from the NCMIN Tiers Data Layer.

 

Road Data

 
  
Road Characteristics Arcs

An Arc Layer for visual representation of a subset of road characteristics for the state road system. Each arc/record is split where road characteristics change along a route. This is a digital file of the North Carolina Department of Transportation's road inventory database that represents a subset of road characteristic attributes of the NCDOT state road system. The state road system is comprised of Interstate, US, NC, Secondary Routes, and Ramps. This layer also includes some non-state maintained and projected roads that are required for reporting purposes.  

Review the following before downloading the Road Characteristics files:

Release: First Quarter 2015 Release
NCMIN Tier Designations

An Arc Layer for visual representation of NCMIN Tier Designations on routes. This is a digital file of the North Carolina Department of Transportation's Linear Referencing System that represents the routes and attributes of the NCDOT state road system. The state road system is comprised of Interstate, US, NC, Secondary Routes, and Ramps.

Release: First Quarter 2015 Release
Statewide Primary & Secondary Road Arcs

An Arc Layer for visual representation of the state road system where each arc/record is split at each road intersection. This is a digital file of the North Carolina Department of Transportation's Linear Referencing System that represents the routes and attributes of the NCDOT state road system. The state road system is comprised of Interstate, US, NC, Secondary Routes, and Ramps and some non-state maintained and projected roads required for reporting purposes.

Release: First Quarter 2015 Release
Statewide Primary & Secondary Road Routes

A Route Layer for visual representation of attributes stored by County/Route/Milepost linear reference. This is a digital file of the North Carolina Department of Transportation's Linear Referencing System that represents the routes and attributes of the NCDOT state road system. The state road system is comprised of Interstate, US, NC, Secondary Routes, and Ramps and some non-state maintained and projected roads required for reporting purposes.

Release: First Quarter 2015 Release
 

Boundary Data

 
  
Municipal Boundaries

Polygon layer primarily consisting of municipalities that participate in the Powell Bill.

Release: FY 2014 Powell Bill Boundaries
NCDOT Division Boundaries
Polygon layer representing the NCDOT Division boundaries.​
Release: Released First Quarter Annually
County Boundaries with Shoreline

Polygon layer representing county boundaries for use in depicting the boundaries with a shoreline.​

Release: Released First Quarter Annually
Smoothed 2010 Census Urbanized Boundaries

Polygon layer representing the smoothed boundaries for the 2010 Census urban areas in North Carolina. The boundaries were originally generated by the US Census Bureau and have been adjusted (smoothed) by the North Carolina Department of Transportation, in cooperation with North Carolina’s Metropolitan Planning Organizations.   

Release:
MPO/RPO Boundaries

Polygons depicting the various MPO and RPO boundaries, covering the entire state of North Carolina. Existing MPOs expanded their Metropolitan Planning Areas (MPAs) to include all territory in Census 2010 UZAs. All boundary adjustments are approved by the Governor(s) and submitted to the FHWA Division Office(s). The MPA boundaries include the entire UZA boundary identified in the 2010 decennial Census and the contiguous geographic area likely to become urbanized within 20 years. RPOs were created for transportation planning in rural North Carolina areas not within an MPO.

Release:
County Boundaries

Polygon layer representing County Boundaries developed by North Carolina Geodetic Survey to facilitate planning, siting, and impact analysis in the 100 individual counties of North Carolina.

Release: Released First Quarter Annually
 

Other Data

 
  
  
Integrated Statewide Road Network (ISRN)

A statewide road layer that incorporates all road systems built from local and TIGER sources. This product is version 2 of an initiative to build, maintain, and incorporate all road systems in a comprehensive digital layer. See the documents within the ZIP file for a detailed product description, geocoding and networking instructions, and related statistics.

NCDOT Bike Routes

The bike routes shapefile contains lines representing North Carolina bike routes, as defined by the Division of Bicycle and Pedestrian Transportation. Bike routes include the Interstate, State, County, Regional, and Urban routes and were based on the DOTRoads file, produced by NCDOT. The shapefile layer is in North Carolina Stateplane NAD83 meters format.

NCDOT Bridge LocationsFirst Quarter 2015 Release

Bridge structures maintained by the NCDOT Bridge Maintenance Unit.

NCDOT Rail Division DataFirst Quarter 2015 Release

An authoritative geospatial representation of accurate and consistent railroad layers from the North Carolina Rail Division.

The track dataset provided includes line data that represents the entire standard gauge freight and passenger railroad track in North Carolina.

The crossings dataset provided includes point data that represets all open and public rail crossings in North Carolina.

The facility dataset contains point features that represent railroad yards, intermodal and transload locations.

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