Description: This layer contains locational property address identifiers for the numbered thoroughfare addresses within Prince George’s County, Maryland. The main purpose of the layer is to provide address reference and searches, to support the county’s 911 service, and the production of cartographic products.Positioning: For the most part, the address points are positioned at the center of each building’s footprint, or near the center of each addressed portion of a building. Other points are placed near the center of unimproved lots. Sources of address information: The state’s tax account information, address maps and guidance from the M-NCPPC’s Development Review Division staff, and other address authorities such as the cities of Laurel and Greenbelt. Standards: The address data largely follows the Federal Geographic Data Committee’s United States Thoroughfare, Landmark, and Postal Address Data Standard, though additional fields are maintained for specialized needs. Further, it follows the National Emergency Number Association’s Standard Data Formats For 9-1-1 Data Exchange & GIS Mappingand postal delivery standards from the United States Postal Service. Future enhancement: A number of fields are included for possible use in future work, such as to support the creation of cartographic products or other analyses using the address information. To this end, this layer contains a sample set of landmark addresses, unit numbers, and data for labeling hundred blocks, address ranges, and miscellaneous address notes.
Description: The Centerline is a data sharing process between the State Highway Administration and local governments. Using a common centerline allows better exchange of information about the roadway system and provides opportunities for more efficient collection of information about that roadway asset. This layer contains the public street centerlines and address ranges for all streets, except for medians, in Prince George's County, Maryland. The line work was created from the 1993 1FT aerial imagery and the attributes were entered by CENTECH Inc. This layer is maintained by Prince George's County Office of Information Technology and is used to support the emergency response 911 system. Access to this information must receive the approval of OITC GIS Manager (301) 883-5343.The Spatial Data, and the information therein, is provided "as is" without warranty of any kind, either expressed, implied, or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall Prince George’s County be liable for direct, indirect, incidental, consequential or special damages of any kind. Prince George’s County does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data, nor is there responsibility assumed to maintain the Data in any manner or form. Any data derived from the Data must acknowledge Prince George’s County in the metadata
Description: This dataset contains buildings within Prince George's County. Building ruins, buildings under construction, and parking garages are also included. Overhead rooftops, or canopies, are shown with a separate feature code and features running under are not clipped out. Each feature is attributed with height in feet and roof type of either gable or flat. This data was captured for use in general mapping at a scale of 1:1200.
Description: The Property_Flattened_Py layer is a combination of the Property shapes and the Maryland Department of Assessment and Taxation (SDAT) information. The Property shapes, from the Property_Py layer, are edited daily by Planning Department staff, while the SDAT information, the Land Data File (LDF) table, is updated at the end of each month. These two items are combined and exported into the Property_Flattened_Py layer on a nightly basis. Normally this data is kept separately and has a many-to-many relationship between the properties and the account information. For example, the largest condominium parcel in the county has over five hundred SDAT issued tax accounts associated with a single property shape. The combination process, or flattening, into a one-to-one relationship from its native many-to-many relationship, creates multiple identical polygons for those properties that have multiple associated account numbers. For most of the properties in the county this results in a single shape with the corresponding SDAT information. However, for example, the previously mentioned condominium parcel will have over five hundred identical property shapes stacked on top of each other. There are many more properties that have two or three accounts per property. Warnings: Do not use this layer for most spatial analysis, based on the Shape.Area field. Due to the multiple property shapes your totals will be greatly inflated. Best uses: For querying any of SDAT information from the property shapes to find locations (Locate, Zoom To, Highlight, etc) For labeling the SDAT information on a map/document based on the property shape(s). Keep in mind the multiple polygons while setting up your labeling rules. For finding counts of data. For example how many subdivided accounts have an improvement value greater than $100,000, and are tax exempt (etc.).
Description: DPWT inspects these bridges as required by the Federal Highway Administration. March 2015. Data is from KML file from InspectTech Inspection Solutions. Wilson T Ballard maintain the inspectors records in InspectTech. Jay Shah at DPWT OEPM is the Project Manager responsible for these Bridges
Description: This polygon layer identifies the location of all police beats throughout Prince George's county and is accurate to 1:2400. Police beats are used to assign patrol car areas. There are about 7 Police beats per Police Sector. This feature data is maintained by Prince George's County OITC.