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VT Open Geodata Portal: ArcGIS Online Configuration Standards

This document defines standards for registering your data, web services, apps, products, and tools within AGO so that they can be discovered via the Vermont Open Geodata Portal (Portal). The purpose of these standards is to support consistent implementation and maintenance of a federated Portal that will connect publishers and consumers in a user-driven portal that facilitates finding, exploring, and consuming geospatial information.

VT GIS Parcel Data Standard

The VT GIS Parcel Data Standard seeks to: 1. Define technical requirements for municipalities to utilize when creating or updating GIS parcel data. Separate levels of this standard will allow municipalities to pick a level suitable for procurement, budget, and resource considerations and ensure that high quality and reliable parcel information products are developed. This standard provides an extensible framework that serves as a foundation for production of supersets of the standard levels for particular municipal business needs.
2. Establish common data elements and ensure consistency between different municipal GIS parcel data sets to ensure that all delivered municipal GIS parcel datasets can be merged into a single statewide dataset without translation. The common data elements and data consistency provide a framework that yields efficient exchange of parcel data and parcel data aggregation.

Buildings Data Standard

This document is primarily for use by people who collect and maintain
data about residential and/or commercial buildings. The purpose is to
provide standard methods for collecting such data so that it is fully
compatible with the Vermont Geographic Information System (VGIS).

Road Centerline Spatial Data Standard

This Standard is intended to draw together all documentation and
references related to the development and maintenance of Vermont's
master road centerline spatial data layer. It outlines the structure of
Vermont's road centerline data layer (TransRoad_RDS), herein referred
to as RDS. This document will act as a road map to the future of this
data layer. This standard will be phased in over a period of time. It will
not be implemented all at once. Financial and organizational constraints
will dictate the pace of implementation.

VT Geographic Area Names and Codes Standard

This standard defines codes for various incorporated and widely-used geographic areas in Vermont. Existing federal standards are leveraged by this standard to ensure maximum compatibility with state and federal data.
A primary use of these standard codes is to store and link data related to these geographies. One capability of GIS is the creation of thematic maps (maps in which towns or other areas are shaded in based on the values for the different areas). An example would be a thematic map of population density for Vermont's towns. Thematic maps will be easier to produce from various data sources if users adhere to these standard geographic codes.
The inclusion of these codes within state data at both the local and statewide level will also enable the linking of data from different sources and regions to perform analyses across municipalities, statewide, and at the national level.

Land Use / Land Cover Codes

Maps of land use and land cover are fundamental tools for natural
resource management and planning. These land use/cover codes
provide a standard system by which units of land can be categorized.
Land use/cover maps serve to: assess the area and distribution of individual land use/cover
categories (such as cropland and pasture, code 21), show the diversity of the landscape, contrast the land diversity of different regions, monitor changes in land use and/or cover over time.

The VGIS Land Use/Land Cover Codes have been developed to provide compatibility with existing USGS codes, provide codes tailored to Vermont's landscape, permit land coding at a various resolutions (local, regional and
state), avoid and clarify redundant classifications which depend on interpretation.
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