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MassGIS Data: Libraries

August 2017
This dataset contains points which represent locations of all public libraries and their branches currently registered with the Massachusetts Board of Library Commissioners (MBLC)
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This dataset contains points which represent locations of all libraries currently registered with the Massachusetts Board of Library Commissioners (MBLC). Sample of Library DataMassGIS created the layer from a list received from the MBLC. The list was current as of October, 2004, and contained the addresses and a few other related attributes for every library that currently meets the MBLC eligibility requirements for registration with the state (see http://mblc.state.ma.us/mblc/regional/membership/eligibility.php). Please note that not all libraries in the Commonwealth are compliant with these requirements, and therefore were not included in the list. If a library appears to be missing from the dataset, it is not registered with the MBLC as of October, 2004, and needs to do so to be considered in future updates.

In ArcSDE the layer is named LIBRARIES_PT.

Production

The initial list of 1763 libraries was formatted by MassGIS staff and submitted to an in-house customized version of MassGIS' MapInfo MapMarker geocoding engine/application. Any unmatched addresses were then submitted to a 2nd round of geocoding using ESRI’s ArcMap v9.0 software and an Address Locator (geocoding service) using attributed street information from GDT. These two methods accounted for all but 31 of the libraries in the list. Those 31 libraries were then located through online research and phone calls to staff at the libraries or local officials. Finally, any library listed as being part of a K-12 school was compared to the existing MassGIS Schools datalayer, and where a match was found, those points were shifted to coincide with the school locations. In the end, a 100% match rate was achieved. MassGIS did not attempt to reconcile any spelling errors, missing or erroneous address information, or truncated values. Please note that points located strictly through geocoding methods (see PT_SRC attribute) may not be positioned so that they match their true location as seen on ortho imagery.


Attributes

Each library point has the following attributes:
NAME The formal name of the library
ADDRESS The address of the library
TOWN The incorporated city or town in which the library is located
STATE All coded “MA”
ZIP 5-digit postal ZIP Code
ADDRESS_POINT_ID Identifier from MassGIS' Master Address Database, when matched to a MAD point.
LIBKEY Identifier from the MBLC. It is unique for all libraries except public library branches, which use the LIBKEY of the parent municipal library.
TYPE Type of library as categorized by the MBLC. Includes:
PUBLIC - A public library, administered by the local government.
PUBLIC BRANCH - A public library branch location; this value was calculated by MassGIS based on information provided by the MBLC.
SPECIAL - Libraries not administered by municipalities. Those included in this layer comprise a small number designated as such by the MBLC as described in the Overview section of this document.
NETWORK Library network. For public libraries in Massachusetts, eight networks provide the library catalog, the ability to borrow from neighboring libraries, circulation, patron registration, public Internet access and other critical services. See the MBLC Library Networks for details.
REGION Library region
DELIVROUTE Library delivery route
WEBSITE Library website

Maintenance

The initial list of 1763 libraries was formatted by MassGIS staff and submitted to an in-house customized version of MassGIS' MapInfo MapMarker geocoding engine/application. Any unmatched addresses were then submitted to a 2nd round of geocoding using ESRI’s ArcMap v9.0 software and an Address Locator (geocoding service) using attributed street information from GDT. These two methods accounted for all but 31 of the libraries in the list. Those 31 libraries were then located through online research and phone calls to staff at the libraries or local officials. Finally, any library listed as being part of a K-12 school was compared to the existing MassGIS Schools datalayer, and where a match was found, those points were shifted to coincide with the school locations. In the end, a 100% match rate was achieved. MassGIS did not attempt to reconcile any spelling errors, missing or erroneous address information, or truncated values. Please note that points located strictly through geocoding methods (see PT_SRC attribute) may not be positioned so that they match their true location as seen on ortho imagery.

Items

Contributor
Modified Date
2017-12-09
Release Date
2017-07-14
Frequency
Irregularly
Identifier
53d9442c-ae57-41c4-9d23-85a5364b84b6
Spatial / Geographical Coverage Location
Massachusetts
License
Author
MassGIS
Contact Name
MassGIS
Contact Email
Public Access Level
Public
Data Quality
True
Content Type
Language
English (United States)